Flame Retardant Masterbatch for Forming XPS
| HS Code | 116632 |
| Flammability | High flame retardancy |
| Thermal Stability | Good thermal stability |
| Dispersion | Good dispersion in XPS matrix |
| Chemical Resistance | Good chemical resistance |
| Weather Resistance | Good weather resistance |
| Processing Compatibility | Compatible with XPS processing technology |
| Low Smoke Generation | Generates low smoke when burning |
| Non Toxicity | Non - toxic |
| Low Migration | Low migration rate in XPS |
As an accredited Flame Retardant Masterbatch for Forming XPS factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 5 - kg bags of Flame Retardant Masterbatch for forming XPS. |
| Storage | Flame Retardant Masterbatch for Forming XPS should be stored in a cool, dry place away from direct sunlight and heat sources. Keep it in a well - ventilated area to prevent moisture absorption and potential chemical reactions. Store in its original, tightly - sealed containers to maintain quality and avoid contamination. |
| Shipping | Flame Retardant Masterbatch for Forming XPS is shipped in sealed, moisture - proof containers. It's carefully packaged to prevent damage during transit, with proper labeling for safe handling in compliance with chemical shipping regulations. |
Competitive Flame Retardant Masterbatch for Forming XPS prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
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Historical Development
Tracing back to the introduction of Western technology, styrene foam board emerged in the last century, and is widely used in engineering because of its light heat insulation. However, its flammable disadvantages have often appeared in the disaster of fires, so scientists have devoted themselves to exploring flame retardant methods. At first, powdered flame retardants were added, but they were unevenly dispersed and had limited effect. Catch the invention of flame retardant masterbatch, using plastic as a carrier, evenly mixing flame retardant ingredients, and the process is increasingly refined. In particular, XPS flame retardant masterbatch for molding is the most, which not only guarantees the performance of the board, but also has high flame retardancy. With the passage of time, the voice of environmental protection has increased, halogen-free and non-toxic formulas have gradually become the mainstream, and technology has also advanced with the times. Ultimately, XPS products are integrated with lightweight, heat insulation and flame retardancy, and are widely used in the world.
Product Overview
This product is a flame retardant masterbatch specially designed for XPS molding. It contains high-quality flame retardant components, uniform color and fine particles, and is easy to blend with polystyrene substrates. Its stability, high ignition point, effectively inhibit flame spread, self-extinguish in case of fire, and ensure product safety. Easy to put in, good temperature resistance, maintain superior dispersion during high temperature extrusion, strong compatibility, and do not damage the physical and mechanical properties of the original material. Suitable for a variety of foaming applications, improve the flame retardant level of products, meet environmental protection regulations, halogen-free and environmentally friendly, and odor-free. Widely used in construction, thermal insulation, packaging and other fields, greatly enhance the safety and durability of XPS products, and contribute a lot to the protection of human settlements and industrial safety.
Physical & Chemical Properties
Flame Retardant Masterbatch for Forming XPS, its body is solid, the color is more gray and white, slightly shiny, and the quality is fine and smooth. The grain shape is uniform, and it is easy to disperse in the polystyrene matrix. The properties are stable, not easy to absorb moisture, and the smell is weak. It is mixed with polymer substances and does not decompose through thermoplastic process, and has good high temperature resistance. Chemically, it is safe to encounter ordinary acid and alkali, but can react with strong oxidizing agents. It has flame retardant effect, the flame is difficult to spread, and there is little smoke during burning, and little harmful gas is precipitated. It can effectively improve the limiting oxygen index of the material in polystyrene. Storage should be dry and cool, avoid direct exposure to strong light, and leave it for a long time without significant deterioration. All kinds of chemical stability, long-lasting performance.
Technical Specifications & Labeling
This product is called the flame retardant masterbatch for XPS molding. The main component is an environmentally friendly flame retardant and a polymer carrier, which are refined by scientific compatibility. Its appearance is white or light yellow small particles, with uniform particle size, smooth and round. Excellent flame retardant performance, the ratio is recommended to be 1.5% to 3%, which can make XPS sheet reach the flame retardant B1 or B2 grade standard. Good dispersion, strong compatibility with polystyrene resin, no precipitation phenomenon. Moisture content ≤ 0.3%, melt index (MI) 5~ 10g/10min. Density is about 1.2 g/cm ³, and the volatilization is extremely low. Storage should be dry and sealed away from light, and the shelf life is December. The product packaging is in 25 kg plastic woven bags as a unit, and can also be customized according to customer needs. It is widely used in the production of XPS extruded insulation board, with stable performance and convenient application.
Preparation Method
The flame retardant, matrix resin and auxiliary agent are selected as raw materials, and each is weighed in proportion. First, the flame retardant is blended with the auxiliary agent, finely ground to a fine powder, and then mixed with the matrix resin, and homogenized in a high-speed mixer. After that, it is put into the internal mixer and melted and mixed at a temperature of about 150 degrees, so that the flame retardant is uniformly dispersed in the resin. The material is cooled and granulated to obtain the finished flame retardant masterbatch. The reaction steps are mainly physical mixing, melting and dispersing, and there is no chemical bond change. The catalytic mechanism relies on the synergy of auxiliary agents to promote the pyrolysis or expansion of the flame retardant. In case of high temperature, phosphorus, halogen and other elements can be released to generate inert gas and carbon layer, which isolates oxygen and combustible The whole preparation process is to ensure that the raw materials are blended evenly and avoid local aggregation to ensure the stability of their flame retardant effect and quality.
Chemical Reactions & Modifications
Flame Retardant Masterbatch for Forming XPS, the flame retardant additives used are mostly phosphorus, bromine or nitrogen, doped in the polystyrene matrix to make it flame retardant. During hot pressing, the flame retardant precipitates with temperature, or reacts with the polymer chain to form a non-flammable structure, which increases the flame retardant effect. In addition, there is a synergistic mechanism that interacts with some components in the foaming agent, resulting in high closed cell rate of the foam, blocking oxygen, inhibiting combustion, and preventing dripping. Its chemical modification, either by surface coating, makes the flame retardant group compatible with the matrix, or by copolymerization, the flame retardant group is embedded in the main chain, which is the way of chemical reaction and modification, not only to ensure the foaming performance of the material, but also to ensure the safety of flame retardant, which is a good strategy for new material engineering modification.
Synonyms & Product Names
Flame retardant masterbatch, also known as flame retardant masterbatch, or fire retardant additive, is specially used for XPS extrusion board molding. Circulated in various markets, it is also known as XPS flame retardant, extruded polystyrene flame retardant masterbatch, and special flame retardant masterbatch for XPS board. Most of the products in the market are marketed under the names of high-efficiency flame retardant XPS masterbatch, environmentally friendly fire retardant masterbatch, thermoplastic flame retardant masterbatch, etc. Or it is called B1 flame retardant masterbatch, flame retardant brick red masterbatch, and special flame retardant powder for polystyrene. In fact, it is synonymous, and it is all aimed at improving the flame resistance of XPS products. The label number of the merchant is different from the registered trade name, or it is Flame Retardant Masterbatch-X1, or FPX-200, XPS Fireguard, which varies according However, its nature and function are indistinguishable, and it can effectively enhance the flame retardant grade of the extruded board, prevent fires, and delay incineration, which is widely respected by the industry.
Safety & Operational Standards
The flame retardant masterbatch is used to form XPS. The process is exquisite, and safety is the top priority. The operation must follow the specifications. Its material properties are special, and it is easy to volatilize fine dust at high temperature. It should be stored in a ventilated and cool place, away from fire sources and sun exposure. The packaging must be sealed to prevent moisture erosion. In case of leakage, cover it with dry sand quickly, and be careful not to wash it away with water. When handling, wear dust masks, gloves, and protective glasses to prevent inhalation of its particles or touching the skin. The work site is clear, the equipment needs to be well grounded, and static electricity should be released in time.
When feeding, when pouring slowly, do not tilt or beat vigorously to avoid dust dispersion. The machine needs to be pre-checked and can be activated without abnormality. Temperature control should follow the procedures, do not make the temperature too high, so as not to decompose harmful gases, make sure that the ventilation facilities are smooth, and remove exhaust gas at all times. In case of abnormal noise or leakage of equipment, immediately stop the machine for maintenance, and do not disassemble without authorization. Shift must be detailed, detailed equipment status and abnormal phenomena, to ensure clear responsibility.
After the operation is completed, clean up the remaining material in time and store it in a fixed place. Remove protective gear, and thoroughly wash hands and exposed skin under flowing water. If dust is accidentally inhaled, move quickly to a place with fresh air. If the situation is serious, call the police and send it to the doctor immediately. If clothes are splashed, change them immediately. It is also advisable to wash the skin with soap and clean water. Empty bags of materials should be classified and disposed of in accordance with regulations, and should not be mixed with domestic waste.
Suihan and then after knowing the pine and cypress, all for Ji'an, must be careful, the operation is not slack, and few things are safe. Knowing this safe operation way, the production capacity will be guaranteed, and the body will be safe and worry-free.
When feeding, when pouring slowly, do not tilt or beat vigorously to avoid dust dispersion. The machine needs to be pre-checked and can be activated without abnormality. Temperature control should follow the procedures, do not make the temperature too high, so as not to decompose harmful gases, make sure that the ventilation facilities are smooth, and remove exhaust gas at all times. In case of abnormal noise or leakage of equipment, immediately stop the machine for maintenance, and do not disassemble without authorization. Shift must be detailed, detailed equipment status and abnormal phenomena, to ensure clear responsibility.
After the operation is completed, clean up the remaining material in time and store it in a fixed place. Remove protective gear, and thoroughly wash hands and exposed skin under flowing water. If dust is accidentally inhaled, move quickly to a place with fresh air. If the situation is serious, call the police and send it to the doctor immediately. If clothes are splashed, change them immediately. It is also advisable to wash the skin with soap and clean water. Empty bags of materials should be classified and disposed of in accordance with regulations, and should not be mixed with domestic waste.
Suihan and then after knowing the pine and cypress, all for Ji'an, must be careful, the operation is not slack, and few things are safe. Knowing this safe operation way, the production capacity will be guaranteed, and the body will be safe and worry-free.
Application Area
Flame Retardant Masterbatch for Forming XPS is actually an essential fireproof agent for polystyrene extruded boards. Its properties are stable, easy to mix and evenly, and it is widely used in many fields such as construction, transportation, and refrigeration. The insulation layer of building walls, floors, and roofs all rely on XPS boards to cut off heat, but if there is no flame retardant, it is difficult to prevent fires. With this masterbatch preparation, the plates can self-extinguish while holding fire, and cast a strong barrier. It is especially useful in high-speed railways, subway tunnels, and large warehouses and commercial centers where fire safety is required. Today, refrigerated warehouses, air-conditioning pipes, and lightweight decorative boards also use XPS with fireproof masterbatches to keep warm and flame-resistant, and it will last for a long time. It is in many fields that it benefits the people and businesses.
Research & Development
The flame-resistant masterbatch is an important material for forming XPS (extruded polystyrene). The more refined the science in modern times, the newer the process, and the safer the material. It is based on our generation's specialization in its theory and study its formula, so as to increase the flame retardant efficiency without compromising its mechanical strength and heat insulation effect. The craftsman considers the elements, combines them with halogen-free environmental protection, and fine-tunes the particle size, so that the dispersion is very uniform, detracts from the melting, and ensures that the product is white and free of spots. Combined with high-tech and countless tests, the masterbatch and polystyrene are not easy to dissociate. And considering that it is suitable for a variety of extrusion processes, it is widely used in building insulation, and it is not afraid of fire. By extension, energy saving and safe living are indispensable. It is a long-term cause for scientific research and development, continuous innovation, setting a model for the industry, and protecting people's livelihood.
Toxicity Research
The brominated flame retardant masterbatch is used to form XPS, and its preparation is subtle and widely used. However, the chemicals contained in it, if brominated organic compounds, decompose at high temperature, or cause harmful gases to escape. Gou inhalation of the human body can damage the breathing machine, disturb the central nervous system, or cause dizziness, nausea, and body fatigue. Long-term exposure, or retention of those who are harmful to the liver and kidneys. Experiments were carried out on mice. Different doses were administered and inhaled separately. Observing its shape and physiological changes, it was found that high doses caused shortness of breath, sluggish activity, and some weight loss or death. It is legal to use, moderate protection, or can reduce its harm. It is known that the brominated flame retardant masterbatch can be flame retardant, but its toxicity cannot be ignored. Appropriately scrutinize its application and carefully understand its nature to ensure the well-being of the people.
Future Prospects
Flame barrier masterbatch is used to form XPS sheets, which is relied on by many in the industry today. However, technology is changing with each passing day, and the raw material process has been refined. Looking to the future, its performance can be more extreme, the flame retardant efficiency is enhanced, and environmental protection is taken into account, reducing the escape of harmful substances. The formula is more efficient and adapts to multiple production needs. When intelligent manufacturing is perfected, the process is more accurate, and the energy consumption can be greatly reduced. Coordinated development with green materials will help the way of building energy conservation and benefit the living environment. Foreign regulations are becoming increasingly stringent, and the expansion of flame barrier masterbatch is bound to comply with international standards and enhance competitiveness. Looking to the future, the integration of flame barrier masterbatch with new materials and new processes will open up more innovative paths, benefit the society, and continue to develop forever.
Where to Buy Flame Retardant Masterbatch for Forming XPS in China?
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As a leading Flame Retardant Masterbatch for Forming XPS supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the main ingredients of Flame Retardant Masterbatch for Forming XPS?
Flame retardant masterbatch is an important agent used to make extruded polystyrene (XPS) boards. Its main components depend on the fire rating and process requirements of practical applications. Most of the flame retardant masterbatches used in this world are mainly organic phosphorus flame retardants, and inorganic substances are used to help the effect. Brominated flame retardants were popular in the past, but due to environmental concerns, they were gradually replaced by phosphorus. Phosphorus flame retardants such as ammonium tripolyphosphate (APP) and phosphate esters can help to produce a dense carbon layer when the material burns, isolate oxygen, and stop the spread of fire. Its main component is sometimes added with antimony trioxide to enhance the synergistic flame retardant effect. The reason is that antimony trioxide and the main agent work synergistically to make the flame retardant function more significant.
In addition, more carrier resins are added to the flame retardant masterbatch, so that the main agent is evenly distributed in polystyrene. Common carriers are polyethylene, polypropylene and other compatible resins. In order to facilitate uniform mixing, surfactants or dispersants are occasionally used to ensure that the flame retardant components are fully dispersed. Some formulations still have inorganic fillers such as talc and silicate, which are not only flame retardant, but also can improve material strength and reduce costs.
When the masterbatch is made, its proportion arrangement is particularly delicate. The content of the main agent ranges from 5% to 30% of the total, depending on the flame retardant grade of the downstream finished product. For environmental protection and safety regulations, more halogen-free flame retardant masterbatches have been taken in recent years to reduce the precipitation of harmful gases, which is in line with green production methods. The flame retardant masterbatch as a whole has a delicate structure, coordinated and orderly, which not only guarantees the physical properties of the material, but also has excellent flame retardant characteristics.
In summary, the main components of the special flame retardant masterbatch for XPS molding are covered with organophosphorus flame retardants as the main material, supplemented by inorganic synergistic agents, carrier resins and several inorganic fillers. According to each function, the safety and fire protection work together. The environment and process migrate over time, but the basic structure is roughly like this.
In addition, more carrier resins are added to the flame retardant masterbatch, so that the main agent is evenly distributed in polystyrene. Common carriers are polyethylene, polypropylene and other compatible resins. In order to facilitate uniform mixing, surfactants or dispersants are occasionally used to ensure that the flame retardant components are fully dispersed. Some formulations still have inorganic fillers such as talc and silicate, which are not only flame retardant, but also can improve material strength and reduce costs.
When the masterbatch is made, its proportion arrangement is particularly delicate. The content of the main agent ranges from 5% to 30% of the total, depending on the flame retardant grade of the downstream finished product. For environmental protection and safety regulations, more halogen-free flame retardant masterbatches have been taken in recent years to reduce the precipitation of harmful gases, which is in line with green production methods. The flame retardant masterbatch as a whole has a delicate structure, coordinated and orderly, which not only guarantees the physical properties of the material, but also has excellent flame retardant characteristics.
In summary, the main components of the special flame retardant masterbatch for XPS molding are covered with organophosphorus flame retardants as the main material, supplemented by inorganic synergistic agents, carrier resins and several inorganic fillers. According to each function, the safety and fire protection work together. The environment and process migrate over time, but the basic structure is roughly like this.
How to use Flame Retardant Masterbatch for Forming XPS?
Flame Retardant Masterbatch is actually a fireproof masterbatch, specially used in the preparation of XPS (extruded polystyrene foam). Its usage is correct, and it must be followed according to regulations to ensure the safety and performance of the finished product. At the beginning of the operation, the main agent needs to be blended with XPS raw materials and blended in proportion. The general dosage depends on the fire protection requirements, often in percentages. When weighing, it should be fine. If it is too much, the performance will be damaged. If it is too little, it will be difficult to prevent fire. It is better to use a high-efficiency agitator to make the masterbatch and raw material particles evenly distributed, without agglomeration or segregation. Due to good dispersion, the function of the fireproof agent can be fully exerted. If an automatic metering device is used to simultaneously add according to the production rhythm, it is particularly ideal, which saves effort and increases efficiency. After mixing, it is sent to the extruder and heated to a suitable temperature, generally 170 to 210 degrees Celsius, so that the raw material melts and the masterbatch is fully combined with the matrix, and the structure is uniform. Slowly extrude, not in a hurry, to prevent the material properties from not being recognized and becoming waste. During production, the uniformity of the melt must be monitored at all times, and the fire resistance of the finished product should be checked regularly to ensure that each batch of products complies with regulations and standards.
In case of uneven particle size, abnormal color, and strange smell, it is advisable to stop the machine immediately, overhaul the equipment, and reflect on the process. The operating place should be clean and ventilated, and the humidity and temperature should be properly controlled to prevent the raw materials from being damp and agglomerated, which will affect the dispersion and performance. The storage masterbatch must be sealed, moisture-proof, heat-proof and sun-proof, and stored in a ventilated and cool place to avoid storage with organic solvents and strong oxidizing agents.
The formula should not be changed lightly. The brand and type of fireproof masterbatch must be coordinated with the raw materials to ensure the excellent performance of the XPS made. In addition, the operation staff must be well trained to understand the principle of fireproof masterbatch, and to check the safety hazards, so that the process can be stable for a long time. In short, the application of fireproof masterbatch prepared by XPS needs to be cautious, accurate and standardized in order to achieve its full use of fireproof and thermal insulation.
In case of uneven particle size, abnormal color, and strange smell, it is advisable to stop the machine immediately, overhaul the equipment, and reflect on the process. The operating place should be clean and ventilated, and the humidity and temperature should be properly controlled to prevent the raw materials from being damp and agglomerated, which will affect the dispersion and performance. The storage masterbatch must be sealed, moisture-proof, heat-proof and sun-proof, and stored in a ventilated and cool place to avoid storage with organic solvents and strong oxidizing agents.
The formula should not be changed lightly. The brand and type of fireproof masterbatch must be coordinated with the raw materials to ensure the excellent performance of the XPS made. In addition, the operation staff must be well trained to understand the principle of fireproof masterbatch, and to check the safety hazards, so that the process can be stable for a long time. In short, the application of fireproof masterbatch prepared by XPS needs to be cautious, accurate and standardized in order to achieve its full use of fireproof and thermal insulation.
What flame retardant standards can Flame Retardant Masterbatch for Forming XPS meet?
The flame retardant masterbatch is used to form extruded polystyrene (XPS) sheets, and its performance is excellent, which can meet the needs of many flame retardant specifications today. Today, the flame retardant standards it can achieve are briefly described as follows:
First, the European Union EN 13501-1 standard, graded A to E. XPS sheets are added with high-efficiency flame retardant masterbatches, and can often reach B grade or even higher. They have the characteristics of good self-extinguishing, short flame extension, and low smoke density. The testing is mostly based on vertical combustion and horizontal combustion tests. The combustion rate is very low, and the flame does not spread. The flue gas release also meets the specifications and meets the safety requirements of modern building materials.
Second, the Chinese national standard GB 8624 is used to evaluate the combustion performance of building materials and is divided into grades A to E. After the formula of the flame retardant masterbatch is optimized, XPS can reach B1 level, which is a refractory material. Self-extinguishing after flame contact, long-term exposure does not help flame retardation, and is widely used in external walls and insulation layers that require high flame retardant performance. Some special formulas can reach A2 level, which is comparable to materials with higher safety grades.
Third, the US ASTM E84 standard, the "tunnel test method", is evaluated by the combustion diffusion index (FSI) and smoke density development (SDI), and is divided into Class A, B, and C grades. XPS boards made of qualified flame retardant masterbatch can often rank among Class A. The performance is that the flame spread speed is extremely slow and the amount of smoke released is limited, which is helpful for the safety of large public buildings and high-rise projects.
In addition, in other parts of the world, such as Japan JIS A1321, UK BS 476 and Australia AS 1530, the XPS included in the flame retardant masterbatch can also pass the relevant tests smoothly. Among them, flame retardation, combustion slowdown, and smoke toxicity reduction are all the focus of evaluation. The newly environmentally friendly type of flame retardant masterbatch attaches great importance to halogen-free and low toxicity. In addition to high efficiency flame retardant, it also meets the new standards for green building materials.
In summary, the flame retardant masterbatch is used for XPS molding, which can meet the mainstream flame retardant standards at home and abroad such as European EN 13501 B, Chinese GB 8624 B1, and American ASTM E84 Class A, meeting the security needs of a variety of construction and industrial applications. It is a powerful tool to escort modern building materials.
First, the European Union EN 13501-1 standard, graded A to E. XPS sheets are added with high-efficiency flame retardant masterbatches, and can often reach B grade or even higher. They have the characteristics of good self-extinguishing, short flame extension, and low smoke density. The testing is mostly based on vertical combustion and horizontal combustion tests. The combustion rate is very low, and the flame does not spread. The flue gas release also meets the specifications and meets the safety requirements of modern building materials.
Second, the Chinese national standard GB 8624 is used to evaluate the combustion performance of building materials and is divided into grades A to E. After the formula of the flame retardant masterbatch is optimized, XPS can reach B1 level, which is a refractory material. Self-extinguishing after flame contact, long-term exposure does not help flame retardation, and is widely used in external walls and insulation layers that require high flame retardant performance. Some special formulas can reach A2 level, which is comparable to materials with higher safety grades.
Third, the US ASTM E84 standard, the "tunnel test method", is evaluated by the combustion diffusion index (FSI) and smoke density development (SDI), and is divided into Class A, B, and C grades. XPS boards made of qualified flame retardant masterbatch can often rank among Class A. The performance is that the flame spread speed is extremely slow and the amount of smoke released is limited, which is helpful for the safety of large public buildings and high-rise projects.
In addition, in other parts of the world, such as Japan JIS A1321, UK BS 476 and Australia AS 1530, the XPS included in the flame retardant masterbatch can also pass the relevant tests smoothly. Among them, flame retardation, combustion slowdown, and smoke toxicity reduction are all the focus of evaluation. The newly environmentally friendly type of flame retardant masterbatch attaches great importance to halogen-free and low toxicity. In addition to high efficiency flame retardant, it also meets the new standards for green building materials.
In summary, the flame retardant masterbatch is used for XPS molding, which can meet the mainstream flame retardant standards at home and abroad such as European EN 13501 B, Chinese GB 8624 B1, and American ASTM E84 Class A, meeting the security needs of a variety of construction and industrial applications. It is a powerful tool to escort modern building materials.
Does the Flame Retardant Masterbatch for Forming XPS affect the physical properties of XPS sheets?
The flame retardant masterbatch is used in the molding of extruded polystyrene sheet (XPS), which can enhance its fire resistance, make it refractory in case of fire, and improve its self-extinguishing property. However, the physical properties of the sheet are also affected to a certain extent. The cover XPS sheet is mainly made of polystyrene resin, supplemented by foaming agent, stabilizer and other additives, and is extruded and foamed at high temperature. The structure is compact, with excellent thermal insulation, compression resistance and stability. However, the flame retardant masterbatch is mostly composed of bromine, phosphorus or inorganic flame retardants. Adding it makes it easy to change the compatibility and crystallinity of the polymer matrix.
The flame retardant is integrated into the matrix, which interferes with the arrangement of polystyrene chain segments. Looking at its expansion structure, it can be seen that the cell size may change, the distribution is no longer uniform, and even the closed cell rate decreases. Therefore, its compressive strength may be slightly reduced, and the water absorption rate will increase slightly. If the masterbatch is poorly dispersed, it is prone to agglomeration, and a heterogeneous phase will be formed inside the plate, resulting in further decline in mechanical properties. Brominated flame retardants are still very poor. When added in extreme amounts, the brittleness of the material may increase and the impact toughness will decrease. If the carrier resin contained in it is incompatible with the main material, the interface will peel and the physical quality will be weakened.
If the flame retardant system is reasonably selected, the ratio is controlled, and the process is finely optimized, the negative impact can be greatly alleviated. For example, the use of synergistic agents and main flame retardants is compounded to improve the dispersibility and reduce the dosage, which not only maintains flame retardancy, but also protects physical properties. Nanomaterials are also used as inorganic flame retardants, which have good dispersibility and can reduce the damage to the properties of the matrix. In general, although flame retardant masterbatches have an impact on the physical properties of XPS sheets, their advantages and disadvantages can be greatly reduced. Only by weighing the trade-offs between scientific processes can we achieve both safety and performance, and achieve both.
The flame retardant is integrated into the matrix, which interferes with the arrangement of polystyrene chain segments. Looking at its expansion structure, it can be seen that the cell size may change, the distribution is no longer uniform, and even the closed cell rate decreases. Therefore, its compressive strength may be slightly reduced, and the water absorption rate will increase slightly. If the masterbatch is poorly dispersed, it is prone to agglomeration, and a heterogeneous phase will be formed inside the plate, resulting in further decline in mechanical properties. Brominated flame retardants are still very poor. When added in extreme amounts, the brittleness of the material may increase and the impact toughness will decrease. If the carrier resin contained in it is incompatible with the main material, the interface will peel and the physical quality will be weakened.
If the flame retardant system is reasonably selected, the ratio is controlled, and the process is finely optimized, the negative impact can be greatly alleviated. For example, the use of synergistic agents and main flame retardants is compounded to improve the dispersibility and reduce the dosage, which not only maintains flame retardancy, but also protects physical properties. Nanomaterials are also used as inorganic flame retardants, which have good dispersibility and can reduce the damage to the properties of the matrix. In general, although flame retardant masterbatches have an impact on the physical properties of XPS sheets, their advantages and disadvantages can be greatly reduced. Only by weighing the trade-offs between scientific processes can we achieve both safety and performance, and achieve both.
What types of XPS production lines is Flame Retardant Masterbatch for Forming XPS suitable for?
The flame retardant masterbatch is used to give the flame retardant properties of extruded polystyrene board (XPS), which is the essence of modern polymer material modification technology. Its applicable production lines are covered with different types, which cannot be generalized. According to the outline, the suitable models and their applications are described in detail:
Today's XPS production line is mainly divided into CO ² physical foaming type and chemical foaming agent type. The CO ² foaming line uses carbon dioxide as the main foaming agent, is environmentally friendly and efficient, and has a high degree of automation. It often uses advanced equipment at home and abroad, such as twin-screw extruders, sheet forming cooling devices, etc. The flame retardant masterbatch has stable properties and uniform particle size. It can be directly mixed with the resin and dispersed by screw shearing. The flame retardant can fully penetrate the molecular chain structure of polystyrene to achieve the ideal flame retardant effect. In the chemical foaming agent production line, isopentane, butane, etc. are often used as foaming sources, which decompose and release gas under the action of heat to form uniform bubbles. This kind of process requires higher dispersion and thermal stability of the flame retardant masterbatch, but modern high-performance flame retardant masterbatch can be compatible with it, and it is not easy to precipitate and settle.
The old single-screw XPS production line, although the structure is relatively simple and the operation is flexible, but the screw shearing force is slightly inferior, so the flame retardant masterbatch dispersion requirements are extremely strict. However, the flame retardant masterbatch with finer particle size and more active composition can also achieve excellent flame retardant effect. In the case of a modern production line with high automation and fast board speed, the thermal decomposition temperature, compatibility and rheology of the flame retardant masterbatch need to be optimized to avoid affecting the foaming, shaping and apparent quality of the board. No matter whether it is a domestic or imported production line, the unit can ensure that the masterbatch is evenly dispersed under high temperature and high pressure, and such flame retardant masterbatch can be adopted. If different models of continuous foaming or batch intermittent foaming are used, as long as the process parameters are properly adjusted, the flame retardant masterbatch can exhibit ideal flame retardant and physical properties, and cooperate with the main material to meet the requirements of fire protection regulations.
In summary, flame retardant masterbatch is suitable for all kinds of XPS production lines, including but not limited to single-screw, twin-screw, CO ² physical foaming and chemical foaming units. Only by combining the characteristics of production line equipment, process details, and precise selection can it be used to its fullest potential and is widely used in modern thermal insulation fields.
Today's XPS production line is mainly divided into CO ² physical foaming type and chemical foaming agent type. The CO ² foaming line uses carbon dioxide as the main foaming agent, is environmentally friendly and efficient, and has a high degree of automation. It often uses advanced equipment at home and abroad, such as twin-screw extruders, sheet forming cooling devices, etc. The flame retardant masterbatch has stable properties and uniform particle size. It can be directly mixed with the resin and dispersed by screw shearing. The flame retardant can fully penetrate the molecular chain structure of polystyrene to achieve the ideal flame retardant effect. In the chemical foaming agent production line, isopentane, butane, etc. are often used as foaming sources, which decompose and release gas under the action of heat to form uniform bubbles. This kind of process requires higher dispersion and thermal stability of the flame retardant masterbatch, but modern high-performance flame retardant masterbatch can be compatible with it, and it is not easy to precipitate and settle.
The old single-screw XPS production line, although the structure is relatively simple and the operation is flexible, but the screw shearing force is slightly inferior, so the flame retardant masterbatch dispersion requirements are extremely strict. However, the flame retardant masterbatch with finer particle size and more active composition can also achieve excellent flame retardant effect. In the case of a modern production line with high automation and fast board speed, the thermal decomposition temperature, compatibility and rheology of the flame retardant masterbatch need to be optimized to avoid affecting the foaming, shaping and apparent quality of the board. No matter whether it is a domestic or imported production line, the unit can ensure that the masterbatch is evenly dispersed under high temperature and high pressure, and such flame retardant masterbatch can be adopted. If different models of continuous foaming or batch intermittent foaming are used, as long as the process parameters are properly adjusted, the flame retardant masterbatch can exhibit ideal flame retardant and physical properties, and cooperate with the main material to meet the requirements of fire protection regulations.
In summary, flame retardant masterbatch is suitable for all kinds of XPS production lines, including but not limited to single-screw, twin-screw, CO ² physical foaming and chemical foaming units. Only by combining the characteristics of production line equipment, process details, and precise selection can it be used to its fullest potential and is widely used in modern thermal insulation fields.
