Flame Retardant Masterbatch for TPU
| HS Code | 718281 |
| Flame Retardancy Level | V-0 (or specific rating) |
| Compatibility With Tpu | High |
| Thermal Stability | Good (mention temperature range if available) |
| Mechanical Property Impact | Minimal (describe any changes to tensile, flexural, etc. if applicable) |
| Color | Typically colorless/white (mention if customizable) |
| Dispersion Ability | Excellent (describe how well it disperses in TPU) |
| Processing Temperature Range | X - Y °C |
| Odor | Low/odorless |
| Storage Stability | Good (mention storage conditions if relevant) |
| Chemical Resistance | Good (mention common chemicals it resists) |
As an accredited Flame Retardant Masterbatch for TPU factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 - kg bags of TPU Flame Retardant Masterbatch, securely packaged for safe transport. |
| Storage | Flame Retardant Masterbatch for TPU 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, which could affect its performance. Store in its original packaging to maintain integrity, and ensure the storage environment has a stable temperature, preferably between 5 - 35°C. |
| Shipping | Flame Retardant Masterbatch for TPU is shipped in sealed, moisture - proof packaging. It's carefully palletized to prevent damage during transit, with temperature - controlled shipping options available for quality preservation. |
Competitive Flame Retardant Masterbatch for TPU 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.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Historical Development
Since the popularity of thermoplastic polyurethane (TPU), because of its flexibility and toughness, it has been widely used in many fields of industry and civil use. However, its nature is flammable, causing safety concerns, and technicians have struggled to think of countermeasures. At the beginning of the traditional addition of flame retardants, but due to uneven dispersion, the performance damage is difficult to overcome. After the gradual development of technology, flame retardant masterbatch was born, specially customized for TPU synthesis, containing flame retardant essence, uniform particle size, conducive to mixing, and suitable for pre-existing problems. Over the years, there are many types of flame retardant masterbatch, including halogen-based and halogen-free, especially those that are environmentally friendly and halogen-free, which are in line with the trend of the times and are favored by the market. Today's flame retardant masterbatch technology is becoming more and more refined, and its performance is becoming better and better. It not only ensures the flame ret This is the TPU flame retardant masterbatch evolving from germination to maturity, driving new changes in the industry.
Product Overview
This product is a flame retardant masterbatch specially made of thermoplastic polyurethane elastomer (TPU). It selects high-quality flame retardants and polymer carriers, and is melted and blended by scientific compatibility and advanced technology. Its appearance is uniform in color and luster, with good dispersion, and it is easy to integrate into the TPU substrate. When applied to products, this product can effectively improve its flame retardant performance, release low smoke during combustion, and does not interfere with the mechanics and flexibility of the raw material. It has the characteristics of environmental protection, halogen-free, low odor, green and safety, and meets a number of international environmental protection and flame retardant standards. It is widely used in the fields of wires and cables, electronic accessories, automotive interiors and shoe materials. It not only protects the safety of personal and property, but also promotes the progress of industry technology. It is the best choice for modern high-performance flame retardant materials.
Physical & Chemical Properties
This flame retardant masterbatch is used for thermoplastic polyurethane elastomer. Its properties are uniform particles, the color is mostly milky white or light, and the texture is solid. It dissolves in very little solvent, is stable at room temperature, and is not easy to volatilize. Its density is slightly higher than that of conventional polyurethane, feels slightly slippery, and has a slight odor. The melting point is suitable for the TPU processing temperature range, and it has good dispersion. It can be uniformly melted with the base material in the molten state, and it is not easy to precipitate. Its chemical properties are mild. It reacts slightly in case of strong acid and alkali, and does not decompose harmful gases when heated at high temperature. It has outstanding flame retardancy, and can self-extinguish in case of fire, preventing the spread of flames, and has little smoke and no odor. It has good compatibility with a variety of additives and pigments, Store in a ventilated and dry place, with constant properties, no moisture absorption, no discoloration, and convenient transportation.
Technical Specifications & Labeling
This flame retardant masterbatch is used for thermoplastic polyurethane (TPU) material. The color is white and the texture is uniform. The particle size is about two to three millimeters. It is dry and free of foreign matter. Among the components, the flame retardant content is forty to fifty percent. The carrier is high-quality TPU resin. The melting point is between one hundred and twenty degrees Celsius. Appropriate processing temperature range, one hundred and sixty to two hundred and twenty hundred degrees. The flame retardant grade can reach the UL94-V0 standard. The addition ratio is recommended to be five to ten percent. It should be increased or decreased as appropriate depending on the flame retardancy requirements of the product. The moisture content is less than two thousandths, and the density is about one to 1.2. Storage should be cool and dry, without direct sunlight. Transportation and storage should avoid heavy pressure and moisture. The packaging should be in a twenty-five kilogram woven It is suitable for injection, extrusion and other processes, and has excellent dispersibility and thermal stability, giving the finished product excellent flame retardancy.
Preparation Method
The raw materials are made of polyurethane thermoplastic elastomer and high-efficiency flame retardant, supplemented by dispersant and antioxidant auxiliary agent. At the beginning of the process, each component is weighed and proportioned according to a certain rate. First, the flame retardant and dispersant are uniformly mixed in a high mixer, and then heated to melt and blend with the TPU main material. The temperature control throughout the process is between 160 and 180 degrees to ensure full plasticization. The mixture is extruded by a twin-screw extruder. During the high shear action of the screw, the flame retardant components are slightly dispersed in the matrix to achieve a uniform distribution. Then it is cooled and granulated by water cutting to form a flame retardant masterbatch. The catalytic mechanism lies in the decomposition of phosphorus, nitrogen and other elements in the flame retardant at high temperature to release free radicals, capture the active free radicals generated by the hot cracking of the polymer, block the combustion reaction chain, and form a carbonized layer on the surface to isolate the oxygen supply, which significantly enhances the flame retardancy of the product.
Chemical Reactions & Modifications
Thermoplastic polyurethane elastomer, which is both flexible and tough in nature, is flammable in case of fire, and is difficult to cope with high temperature environments. In order to increase its flame retardant ability, a flame retardant masterbatch is introduced to improve its properties. The masterbatch contains elements such as phosphorus, nitrogen, bromine, or their compounds. After blending with the polyurethane matrix, a complexation reaction occurs at high temperature to change its molecular structure. Or doping nano-inorganic additives can enhance dispersion and improve compatibility by interfacial action. The above modifications can be added during the polymerization reaction to form a stable structure, or melted and blended later to make the flame retardant components evenly coated. In this way, a carbon layer is formed, which blocks the transmission of heat sources and oxygen, inhibits combustion, and maintains the mechanical strength of the material. Therefore, TPU flame retardant masterbatch through chemical reaction and physical modification, not only to maintain the long performance, but also to increase the safety of use, and enhance its practical value.
Synonyms & Product Names
Flame-resistant masterbatch, also known as flame-retardant masterbatch, is a new type of material specially used in thermoplastic polyurethane (TPU). There are also trade names "flame-resistant elf", "flame shield", etc., which are seen in the market with different specifications and many different names. Or fireproof masterbatch, or cloud flame-resistant granules, the name varies with the factory. The product is blended with the TPU matrix, which can efficiently improve the flame resistance of the material and reduce the risk of combustion. Some are special for halogen-free flame retardant, called Jingflamebao, and some are known for environmental protection. It is similar to "flame-proof additives" and "flame-resistant agents", and is mostly used in similar industries. Although the names of the products are different, the functions of the products are integrated, and they are all important to eliminate fires and ensure the longevity of materials. The guidance of the city, or relying on "flame nemesis", "prosperous era to support flame", has a novel name, but in fact refers to the flame retardant masterbatch.
Safety & Operational Standards
Flame Retardant Masterbatch for TPU is the essence of fire protection additions required by modern technology. During operation, the first priority is safety. The operator must be neatly dressed, wearing protective clothing, gloves, and special masks, so that the skin must not come into direct contact with this object. The place should be well ventilated and do not allow airtight gas and poison to accumulate. Before operation, read its usage specifications carefully, check its performance, and be careful to detect hazards. Do not approach fire sources, stay away from high temperatures, and avoid water and moisture. When heated, harmful gases will be generated, and toxic fumes will be emitted in case of fire, so do not expose to high temperature open flames.
During storage, it should be placed in a dry and cool place, sealed and packaged to prevent it from moisture and deterioration. Stacking should be regular and not damaged by heavy pressure. When taking it, you must use special tools, do not touch it directly with your hands, and clean the residual impurities in every corner of the operation, and do not leave it behind. If it accidentally splashes on the skin or flows into the mouth and nose, it is advisable to rinse it thoroughly with water. If you feel unwell, you should seek medical attention immediately without hesitation.
Waste residues should be collected by classification. Do not dispose of soil and water at will. Handle in accordance with relevant regulations. During handling, registered transporters should not pile up rashly to prevent dumping and leakage. Do not store and transport with chemicals such as acids, alkalis, and strong oxidizing agents. After use, each device should be properly sealed and cleaned in time to prevent long-term sedimentation.
Anyone who is engaged in the operation of this product must be subject to Security Training and be familiar with emergency response. In case of malfunction and fire, a suitable fire extinguisher must be used to put out the fire, and no water should be used at will. The factory area should be equipped with ventilation equipment and first aid facilities, and it is strictly forbidden to eat and drink in the operation room. Standing safety notices and hazard reminders are in prominent places, so that everyone knows what to guard.
If you keep the right way, you will not suffer from safety. If you lose its checks and balances, you will cause all kinds of harm. Careful operation is the foundation of long-term stability.
During storage, it should be placed in a dry and cool place, sealed and packaged to prevent it from moisture and deterioration. Stacking should be regular and not damaged by heavy pressure. When taking it, you must use special tools, do not touch it directly with your hands, and clean the residual impurities in every corner of the operation, and do not leave it behind. If it accidentally splashes on the skin or flows into the mouth and nose, it is advisable to rinse it thoroughly with water. If you feel unwell, you should seek medical attention immediately without hesitation.
Waste residues should be collected by classification. Do not dispose of soil and water at will. Handle in accordance with relevant regulations. During handling, registered transporters should not pile up rashly to prevent dumping and leakage. Do not store and transport with chemicals such as acids, alkalis, and strong oxidizing agents. After use, each device should be properly sealed and cleaned in time to prevent long-term sedimentation.
Anyone who is engaged in the operation of this product must be subject to Security Training and be familiar with emergency response. In case of malfunction and fire, a suitable fire extinguisher must be used to put out the fire, and no water should be used at will. The factory area should be equipped with ventilation equipment and first aid facilities, and it is strictly forbidden to eat and drink in the operation room. Standing safety notices and hazard reminders are in prominent places, so that everyone knows what to guard.
If you keep the right way, you will not suffer from safety. If you lose its checks and balances, you will cause all kinds of harm. Careful operation is the foundation of long-term stability.
Application Area
Flame retardant masterbatch is used in thermoplastic polyurethane (TPU) materials and is suitable for many fields. Its key performance is to effectively improve the flame retardant grade of the material, and it is widely used in electronic cables and data cable jackets, which not only has the hidden worry of fire protection, but also extends the life of the material. It is also used in automotive interior parts to ensure driving safety and improve the internal environment. It is common in medical apparatus shells, extending to household appliances, sports soles, etc., all rely on its flame retardant properties and have environmental protection. With the advancement of the polymer industry, people rely on this masterbatch in the fields of 3C product shells, films, etc., giving products many advantages such as heat resistance, flame retardancy, insulation, etc., promoting social stability, and has a wide range of uses.
Research & Development
Our company has studied the flame retardant masterbatch to be suitable for thermoplastic polyurethane, deeply studied its material properties, and reconciled the compatibility between formulas. The length of phosphorus and nitrogen elements is used to inhibit the spread of flame and maintain its original flexibility. More than 100 tests have been carried out, and the method has been changed repeatedly. It is time to overcome the disadvantages of precipitation and migration, taking into account transparency and mechanical properties. Mixing in the machine, precise temperature control, uniform particles, easy to process. It also studies its environmental protection, adopts low-toxic raw materials, and conforms to the trend of laws and regulations. Mutual learning from peers in other countries, internalized by selecting the best, and achieved remarkable results. Looking to the future, we aim to improve the flame retardant efficiency, reduce the amount of additives, and benefit the competition of products. We are widely used in wires, fibers, and membranes, and we will continue to make progress with innovation as the driving force to create a model in the industry.
Toxicity Research
Flame Retardant Masterbatch for TPU is also used in modern rubber and plastic technology to prevent flame and increase safety. It is applied to thermoplastic polyurethane (TPU), which can make the material non-flammable in case of fire, and has potential benefits for use. However, when studying its toxicity, it is really not careless. Sometimes volatile particles escape into the air, or decompose at high temperature during processing, resulting in harmful breath. In external test mice, if ingested in a small amount, there will be fatigue and lethargy, and the liver will be damaged for a long time, and the blood enzyme body will rise slightly. However, in conventional use, compliance with process specifications, and little exposure, toxicity is rare. Environmental protection regulations must be strict. When discarding and recycling, it is appropriate to prevent infiltration into soil water, which will damage the ecology. As for the harm of direct human contact, the test is still limited, and extensive monitoring is required to obtain the truth. Therefore, although this thing has the benefit of flame prevention, it is appropriate to use it carefully, and the research needs to be detailed.
Future Prospects
Flame Retardant Masterbatch for TPU is now used to enhance the flame retardant performance of polyurethane elastomers. Its market use is becoming more and more extensive, and it has achieved remarkable results in many fields such as automobiles, electronics, and medical care. However, science and technology continue and innovation is endless, but when we follow the principle of new materials and incorporate green environmental protection policies, its performance will be improved. In the future, machine intelligence will be supplemented by precise control of manufacturing micro, or we can achieve both flame retardant and mechanical properties. In addition, we should adapt to the global sustainable development trend, expand the application of bio-based flame retardant raw materials, and reduce the environmental burden. In view of the increasingly stringent external regulations, enterprises can only remain invincible by constantly seeking changes. It is expected that in the next day, Flame Retardant Masterbatch for TPU will surely lead the industry, serve the society, and promote our country's talents in the world.
Where to Buy Flame Retardant Masterbatch for TPU in China?
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As a leading Flame Retardant Masterbatch for TPU 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 TPU?
Flame Retardant Masterbatch for TPU is also the combustion modification of plastic polyurethane (TPU). Its components are various, and the main components are phosphorus, nitrogen, phosphorus and some fillers. Phosphorus-based compounds such as polyphosphates, phosphoric acids and phosphoric amides can generate carbonation on the surface of the polymer for combustion. Oxygen barrier, the energy required for the combustion process. Nitrogen-based combustion, often represented by melamine and its derivatives, is inert to combustion, effective dilute and flammable. There are also nitrogen-based combustion, such as brominated styrene and chlorinated stone. In the early stage of combustion, the decomposition of free radicals can inhibit combustion. However, due to the fact that the pigment is both raw and toxic, it is now often used as a main fuel source.
In addition, anti-dripping materials such as polytetrafluoroethylene (PTFE) are added to prevent melting and dripping, which increases safety. Some flame retardants are also commonly used, such as oxidation and oxidation. In this case, by adding decomposition and release of crystal water, the degree of dilute combustion can be reduced. To make the main TPU well mixed, it is still necessary to coat it with a flame retardant. TPU particles with good compatibility are often used as substrates and mixed with plastics for granulation for the most processing. For the needs of special properties, or for the use of dispersion and oxygen resistance, etc., to maintain the physical and mechanical quality of flame retardant materials.
In addition, the Flame Retardant Masterbatch for TPU is mostly due to the same flame retardant effect of phosphorus, nitrogen, nitrogen, and oil fillers, and the amount of oil is used to help it, so that it has both flame retardant properties and the characteristics of raw materials. The work is excellent, and it is suitable for fine proportions, uniform dispersion, and mixing.
In addition, anti-dripping materials such as polytetrafluoroethylene (PTFE) are added to prevent melting and dripping, which increases safety. Some flame retardants are also commonly used, such as oxidation and oxidation. In this case, by adding decomposition and release of crystal water, the degree of dilute combustion can be reduced. To make the main TPU well mixed, it is still necessary to coat it with a flame retardant. TPU particles with good compatibility are often used as substrates and mixed with plastics for granulation for the most processing. For the needs of special properties, or for the use of dispersion and oxygen resistance, etc., to maintain the physical and mechanical quality of flame retardant materials.
In addition, the Flame Retardant Masterbatch for TPU is mostly due to the same flame retardant effect of phosphorus, nitrogen, nitrogen, and oil fillers, and the amount of oil is used to help it, so that it has both flame retardant properties and the characteristics of raw materials. The work is excellent, and it is suitable for fine proportions, uniform dispersion, and mixing.
What is the Flame Retardant Masterbatch for TPU?
When Flame Retardant Masterbatch is applied to thermoplastic polyurethane (TPU), its flame retardant grade is mostly classified according to the international mainstream standards, especially the American standard UL94. Throughout its flame layer and residual rate, its performance can be fully exhibited only by following the formula process and addition ratio. Flame retardant masterbatch blending TPU substrate can often reach V-0, V-1 and V-2 grades. Among them, V-0 is its high grade, which means that when the test piece is incinerated by an ignition source, the flame will self-extinguish within ten seconds, and the dripping material will not cause ignition of cotton, which is outstanding.
Considering the method of flame retardant grading, it is necessary to use a standard long and wide body test strip to check the combustion time and dripping characteristics under a fixed ignition source. In order to obtain the V-type grade, an appropriate amount of high-efficiency flame retardant factor must be mixed, taking into account the continuous performance of the material. Therefore, if the flame retardant masterbatch used is a high-quality phosphorus-based, nitrogen-based or halogen-substituted type, and the addition ratio is appropriate, the TPU body can achieve V-0 rank. Only if excessive addition or improper process, or uneven dispersion of the masterbatch, the flame retardant grade may be difficult to achieve the best.
However, there may be differences in the implementation of standards in different regions. For example, the European standard EN 13501 and the national standard GB 20286 also have categories. However, tracing its origin, try to take UL94 as an example. The flame retardant masterbatch with V-0 grade is often fed in a ratio of three to five points, and the deviation controlled by synthesis technology is used to make its TPU products close to the top, which not only maintains flexibility but also has a wonderful flame retardant effect. If applied to high-safety fields, there is still LOI limiting oxygen index assisted sequencing, and most of them have LOI greater than 28% and self-extinguishing performance.
Taking into account performance, process and standards is the key to the application of flame retardant masterbatch. If you want to achieve a high grade, you must practice both inside and outside, choose raw materials carefully, and practice the way of manufacturing, so as to show its excellent flame retardancy and protect all things from disaster. In summary, the Flame Retardant Masterbatch for TPU can achieve a flame retardant rating of V-0, and its flame retardant effect can be achieved with proper operation.
Considering the method of flame retardant grading, it is necessary to use a standard long and wide body test strip to check the combustion time and dripping characteristics under a fixed ignition source. In order to obtain the V-type grade, an appropriate amount of high-efficiency flame retardant factor must be mixed, taking into account the continuous performance of the material. Therefore, if the flame retardant masterbatch used is a high-quality phosphorus-based, nitrogen-based or halogen-substituted type, and the addition ratio is appropriate, the TPU body can achieve V-0 rank. Only if excessive addition or improper process, or uneven dispersion of the masterbatch, the flame retardant grade may be difficult to achieve the best.
However, there may be differences in the implementation of standards in different regions. For example, the European standard EN 13501 and the national standard GB 20286 also have categories. However, tracing its origin, try to take UL94 as an example. The flame retardant masterbatch with V-0 grade is often fed in a ratio of three to five points, and the deviation controlled by synthesis technology is used to make its TPU products close to the top, which not only maintains flexibility but also has a wonderful flame retardant effect. If applied to high-safety fields, there is still LOI limiting oxygen index assisted sequencing, and most of them have LOI greater than 28% and self-extinguishing performance.
Taking into account performance, process and standards is the key to the application of flame retardant masterbatch. If you want to achieve a high grade, you must practice both inside and outside, choose raw materials carefully, and practice the way of manufacturing, so as to show its excellent flame retardancy and protect all things from disaster. In summary, the Flame Retardant Masterbatch for TPU can achieve a flame retardant rating of V-0, and its flame retardant effect can be achieved with proper operation.
What is the addition ratio of Flame Retardant Masterbatch for TPU?
Plastic polyurethane (TPU) is a polymer material commonly used in today's work. Because of its good mechanical properties and good performance, it is widely used in many fields such as rubber, steam, shoe materials, etc. However, it is flammable in itself, and it is easy to melt in case of fire, which is prone to flammability. To increase its safety, it is necessary to incorporate flame retardant masterbatches into TPU. The flame retardant masterbatch is made by mixing the flame retardant through the flame retardant phase, and it is specially granulated, which is easy to be mixed and processed. It can be evenly dispersed in the grease without harming the material properties. However, the addition ratio of the flame retardant masterbatch depends on the flame retardant properties of the device, the desired flame retardant, etc., and the thickness and end use of the product. If the use of conventional flame retardant masterbatch, such as phosphorus and nitrogen, probably requires 5% to 20% of the TPU substrate. If you want to achieve high flame retardancy, such as UL 94 V-0, the proportion may be as high as 15% or 20%, and it cannot be generalized. If there is too little input, the flame retardant performance is insufficient, and the amount of input is too much, and the physical properties are not affected. For example, the resistance is reduced and the wear resistance is weakened. Therefore, it is necessary to integrate in a small and medium size to find the best balance of performance and flame retardancy. In the same way, the flame retardant masterbatch is not divided, and it is also difficult to be divided. If it is not divided, it is easy to fire invasion in part, and the flame retardant effect is recognized. Processing, it is necessary to ensure the degree of stability and force properly, so that the flame retardant grease is fully integrated, so as not to precipitate. And the flame retardant masterbatch is different, some have good compatibility with TPU, some are easy to analyze, and some are also added. In other words, the flame retardant masterbatch is added to TPU, and it is advisable to prepare a small amount first, so that its flame retardant effect and mechanical properties can be improved, and the proportion is not adjusted in vain. It is appropriate to use high-quality products, which can get twice the result with half the effort, not only to ensure safety, but also to maintain material properties.
What TPU processing techniques are suitable for Flame Retardant Masterbatch for TPU?
Thermoplastic polyurethane (TPU) has the elasticity of rubber and the plasticity of plastics. This material is mostly used to make shoes, cables, films, pipes and seals. The products of this product often need to be given flame retardant properties, so the application of fireproof masterbatch is very critical. It is the masterbatch that can be evenly mixed with TPU raw materials, so that the finished product has excellent flame retardant effect without damaging its mechanical and physical properties. The applicable processing technology covers a wide range as the variety of its products, and is hereby described as follows:
First, the extrusion process is the most common. It is made of TPU original grain and flame retardant masterbatch mixed in proportion, and propelled at high temperature in the extruder to plasticize and shape. This method is suitable for the manufacture of film, sheet, cable sheath and other products. The production process is simple and the product is evenly flame retardant.
Second, the injection molding process is also commonly used. The TPU material with flame retardant masterbatch is heated to melt, injected into the mold cavity at high pressure, and quickly cooled and demoulded. It is more common in the preparation of mobile phone cases, automotive parts and various precision devices. The flame retardant masterbatch is well compatible with TPU, ensuring that the surface and interior of the product have flame retardant properties.
Third, the blow molding process is especially used for the production of hollow products such as pipes and airbags. With the assistance of gas, the molten mixture is blown into the mold cavity to form a product with uniform wall thickness. After adding the flame retardant masterbatch, the finished product is not only flexible, but also has the effect of flame barrier.
Fourth, the calendering process is mostly used in the production of films and coatings. After multi-roll extrusion, the TPU containing the masterbatch is made into the required thickness and width. The film and fabric coating produced by this method are widely used in outdoor products, protective clothing, etc.
Others such as foaming process (for sole, buffer material), spinning, etc., can also apply flame retardant masterbatch and adjust the ratio to obtain the required properties.
All in all, fireproof masterbatch is suitable for almost all mainstream processes of TPU processing. Only according to the product performance requirements, select the appropriate masterbatch model and addition amount, and control the process parameters to achieve the best flame retardant and physical properties. In this way, TPU products can be widely used in fields with high safety standards, resist fire, and are safe for human use.
First, the extrusion process is the most common. It is made of TPU original grain and flame retardant masterbatch mixed in proportion, and propelled at high temperature in the extruder to plasticize and shape. This method is suitable for the manufacture of film, sheet, cable sheath and other products. The production process is simple and the product is evenly flame retardant.
Second, the injection molding process is also commonly used. The TPU material with flame retardant masterbatch is heated to melt, injected into the mold cavity at high pressure, and quickly cooled and demoulded. It is more common in the preparation of mobile phone cases, automotive parts and various precision devices. The flame retardant masterbatch is well compatible with TPU, ensuring that the surface and interior of the product have flame retardant properties.
Third, the blow molding process is especially used for the production of hollow products such as pipes and airbags. With the assistance of gas, the molten mixture is blown into the mold cavity to form a product with uniform wall thickness. After adding the flame retardant masterbatch, the finished product is not only flexible, but also has the effect of flame barrier.
Fourth, the calendering process is mostly used in the production of films and coatings. After multi-roll extrusion, the TPU containing the masterbatch is made into the required thickness and width. The film and fabric coating produced by this method are widely used in outdoor products, protective clothing, etc.
Others such as foaming process (for sole, buffer material), spinning, etc., can also apply flame retardant masterbatch and adjust the ratio to obtain the required properties.
All in all, fireproof masterbatch is suitable for almost all mainstream processes of TPU processing. Only according to the product performance requirements, select the appropriate masterbatch model and addition amount, and control the process parameters to achieve the best flame retardant and physical properties. In this way, TPU products can be widely used in fields with high safety standards, resist fire, and are safe for human use.
Does the Flame Retardant Masterbatch for TPU affect the physical performance of the TPU?
Polyurethane thermoplastic elastomer (TPU) is the leader of today's polymer materials. It has the advantages of both rubber and plastic, and is commonly used in many fields such as electronics, automobiles, and medical care. However, in various application scenarios, there is a need for flame retardancy. To this end, technology companies have developed flame retardant masterbatches to help TPU resist fire and avoid the danger of burning. However, the addition of flame retardant masterbatches may have an impact on the physical properties of TPU, and it should be analyzed in detail.
Flame retardant masterbatches are mainly prepared from inorganic or organic flame retardants, carriers and appropriate additives. After being mixed in the TPU matrix, its flame resistance level can be significantly improved and the flame spread can be blocked. However, the substances are compatible with each other to a certain extent, and the masterbatch is different from the original molecular structure. When added, it will inevitably interfere with the arrangement of the original polymerization segments. Therefore, the first thing to bear the brunt is the slippage of mechanical properties, such as tensile strength, tear strength, elongation at break, etc., which will be impaired due to poor compatibility and dispersion. Especially if the size of the masterbatch is large or the polarity is very different, the connection of the TPU matrix will be blocked, the internal stress will be increased, and it is prone to micro-cracking.
In addition, the flame retardant components may have subtle interactions with the TPU molecule, changing its crystallinity and the phase separation structure of the soft and hard regions, thereby affecting the elasticity and wear resistance. It is also difficult to maintain hydrolysis resistance and low temperature resistance. In addition, some flame retardants, such as halogen-containing compounds, may precipitate after long-term use, causing the surface of the finished product to lose gloss and reduce comfort, which is contrary to environmental regulations.
However, science and technology continue, and today there are high-efficiency halogen-free flame retardant masterbatches, whose particle size is fine, well dispersed, and highly compatible with TPU. Careful selection of raw materials and optimization of the process can greatly reduce the performance loss, or even reduce its weak impact. At the same time, part of the performance loss can be compensated by the blending of additives, so that the finished product can balance between flame retardancy and mechanical properties.
Overall, the flame retardant masterbatch does have the potential to affect the physical properties of TPU, but the magnitude depends on the quality, ratio and process of the masterbatch. If you can strictly control the raw material and processing, you can have both flame retardant and excellent mechanical properties, making TPU the best of both worlds.
Flame retardant masterbatches are mainly prepared from inorganic or organic flame retardants, carriers and appropriate additives. After being mixed in the TPU matrix, its flame resistance level can be significantly improved and the flame spread can be blocked. However, the substances are compatible with each other to a certain extent, and the masterbatch is different from the original molecular structure. When added, it will inevitably interfere with the arrangement of the original polymerization segments. Therefore, the first thing to bear the brunt is the slippage of mechanical properties, such as tensile strength, tear strength, elongation at break, etc., which will be impaired due to poor compatibility and dispersion. Especially if the size of the masterbatch is large or the polarity is very different, the connection of the TPU matrix will be blocked, the internal stress will be increased, and it is prone to micro-cracking.
In addition, the flame retardant components may have subtle interactions with the TPU molecule, changing its crystallinity and the phase separation structure of the soft and hard regions, thereby affecting the elasticity and wear resistance. It is also difficult to maintain hydrolysis resistance and low temperature resistance. In addition, some flame retardants, such as halogen-containing compounds, may precipitate after long-term use, causing the surface of the finished product to lose gloss and reduce comfort, which is contrary to environmental regulations.
However, science and technology continue, and today there are high-efficiency halogen-free flame retardant masterbatches, whose particle size is fine, well dispersed, and highly compatible with TPU. Careful selection of raw materials and optimization of the process can greatly reduce the performance loss, or even reduce its weak impact. At the same time, part of the performance loss can be compensated by the blending of additives, so that the finished product can balance between flame retardancy and mechanical properties.
Overall, the flame retardant masterbatch does have the potential to affect the physical properties of TPU, but the magnitude depends on the quality, ratio and process of the masterbatch. If you can strictly control the raw material and processing, you can have both flame retardant and excellent mechanical properties, making TPU the best of both worlds.
