Aluminum Diethyl Phosphinate Flame Retardant for PBT
| HS Code | 505913 |
| Chemical Formula | C6H15AlO2P |
| Appearance | White powder |
| Molecular Weight | 174.14 g/mol |
| Thermal Stability | High |
| Flame Retardant Efficiency | Good |
| Compatibility With Pbt | Excellent |
| Low Toxicity | Yes |
| Low Smoke Emission | Yes |
| Processing Temperature Range | Wide |
| Mechanical Property Retention | Good |
As an accredited Aluminum Diethyl Phosphinate Flame Retardant for PBT factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 - kg bag packaging for Aluminum Diethyl Phosphinate Flame Retardant for PBT. |
| Storage | Aluminum Diethyl Phosphinate Flame Retardant for PBT should be stored in a cool, dry, well - ventilated area. Keep it away from heat sources, ignition sources, and direct sunlight. Store in a tightly - sealed container to prevent moisture absorption, which could affect its performance. Avoid contact with reactive substances to maintain product integrity. |
| Shipping | Aluminum Diethyl Phosphinate Flame Retardant for PBT is shipped in sealed, corrosion - resistant containers. Special care is taken to prevent moisture and physical damage during transit, ensuring safe delivery to customers. |
Competitive Aluminum Diethyl Phosphinate Flame Retardant for PBT prices that fit your budget—flexible terms and customized quotes for every order.
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Historical Development
Aluminum Diethyl Phosphinate Flame Retardant for PBT. The first flame retardant technology is based on many chemical compounds, which have good performance, but are toxic to humans. The protection method is becoming increasingly difficult. In the 1990s, researchers in China began to explore phosphine-based flame retardants, represented by diethyl phosphonic acid, which has both flame retardant and low temperature characteristics. Immediately after the work is refined, the compatibility of this PBT is greatly improved, and the mechanical and durability are excellent. It is suitable for use by children. In recent years, the production method has been updated, the efficiency has been improved, and the cost has decreased. Diethylphosphonic acid has become the first in PBT materials, and its color development has been promoted, and it has been used for a long time. So far, it has been flourishing.
Product Overview
Aluminum Diethyl Phosphinate Flame Retardant for PBT, with pure white color and delicate properties, adds stability to modern polymer materials. It is insoluble in water and chemically stable, suitable for resins such as polybutylene terephthalate (PBT). It is fused with materials and applied to plastic manufacturing, which can improve the flame retardant grade of products. When thermally decomposed, non-corrosive gases are released, which effectively inhibits the combustion process and reduces the generation of smoke and harmful gases. Compared with bromine and chlorine flame retardants, it is more environmentally friendly and safe, and meets the needs of environmental protection regulations in Europe, the United States and other places. Widely used in electronic appliances, automotive parts and other industries to ensure the safety of device operation and improve the comprehensive performance of products. The dosage is moderate, the flame retardant effect is significant, and it does not affect the original mechanical properties of the product. It is the best choice for high-performance flame retardant materials.
Physical & Chemical Properties
Aluminum Diethyl Phosphinate Flame Retardant for PBT, white powder, uniform particle size, loose as snow, easy to disperse in polybutylene terephthalate (PBT). It is slightly soluble in water and soluble in some organic solvents, and its chemical properties are very stable. It is not easy to decompose at room temperature and pressure. When heated, it is initialized at high temperature to release phosphoric acid derivatives and alkyl compounds, which help to inhibit the spread of flame and incineration. Its decomposition temperature is about 290 degrees Celsius or more, which is compatible with PBT and does not cause material properties to drop suddenly. It can be slowly hydrolyzed in case of strong acid and alkali, but it is extremely durable in neutral environments. Low hygroscopicity, long-term storage is not easy to agglomerate. The chemical structure contains phosphonate and organic groups, both organic and inorganic flame retardant properties, giving PBT products excellent flame retardant properties, while halogen-free, non-toxic and tasteless, widely respected by modern polymer materials.
Technical Specifications & Labeling
Aluminum Diethyl Phosphinate Flame Retardant for PBT, specially used for polybutylene terephthalate (PBT), mostly white fine powder shape, very stable, insoluble in water. Its phosphorus content is about 24%, aluminum content is about 20%, hydrogen content is more than 5%. The particle size distribution is uniform, and the average D50 is about 10-20 microns. The thermal decomposition temperature is as high as 300 degrees Celsius, and the initial temperature of weight loss is more than 320 degrees Celsius. It can effectively improve the flame retardant level of the substrate in application, up to UL94 V-0 standard. The density is about 1.35-1 grams per cubic centimeter. The volatile content is less than 0.5%, the impurities are minimal, and it does not contain halogens, which has a subtle impact on the color of the product. Storage is suitable for dry and cool, packaging commonly used in plastic outer woven bags, each bag net weight of 25 kg, clear logo.
Preparation Method
In the preparation of aluminum diethyl phosphonate flame retardant, triethylphosphine and phosphorus dichloride are first taken as raw materials and prepared in an appropriate solvent. The temperature is controlled in an appropriate range, and the material is slowly added to make the phosphorylation reaction gradual, resulting in diethylphosphonic acid. When it is completed, aluminum hydroxide is added to the reaction system and slowly stirred at constant temperature to generate diethylphosphonate aluminum. After reaction, aging and filtration processes, impurities are discarded, and then dried to obtain a white powdery product. Its catalysis relies on multiple bases to promote the formation of phosphonic acid, or trace metal ions can be added to accelerate the reaction. The moisture and impurities need to be carefully controlled throughout the process to avoid side reactions. The process is clear and good, and the yield is excellent. The obtained flame retardant is used in PBT composites with outstanding performance.
Chemical Reactions & Modifications
Aluminum Diethyl Phosphinate Flame Retardant for PBT, which is incorporated into polybutylene terephthalate (PBT). The phosphonate group can form hydrogen bonds and coordination bonds with the polymer chain, decompose when harmonizing with high temperature, release phosphine-based free radicals, capture free radicals in the combustion chain reaction, and cut off the oxidation process. When heated again, non-volatile phosphonate aluminum salts are precipitated, forming a dense carbon layer that shields thermal oxygen. If supplemented with co-agents such as polysiloxane or melamine, the flame retardant effect is improved, and the modified PBT can have both excellent mechanical and electrical properties. The flame retardant is uniformly dispersed in the matrix by modern technology or the interface with the resin is optimized by grafting, coating, etc. The chemical reaction and physical modification are parallel, and the performance is significantly improved. It is widely used in refractory polymer materials required for electronics, electrical appliances and automotive parts.
Synonyms & Product Names
Aluminum Diethyl Phosphinate Flame Retardant for PBT, is widely used in the flame retardant industry, especially polybutylene terephthalate (PBT). Or aluminum phosphonate, aluminum phosphate ethyl disalt, and some scholars call it diethyl phosphonate aluminum. In the market, chemical merchants are named according to different brands, or FR Phoslite AP, Clariant Exolit OP 1230, Italmatch Addforce AL DDP, etc. And its different names include aluminum diethyl phosphonate, aluminum diethyl phosphonate, aluminum diethyl phosphonate, and strontium ethyl phosphonate dialuminum salt. Each refers to the same thing, and it is important to inhibit flame delay. Circulating in the market, more granular or powder is seen, with a white appearance. There are also models of 501P and OP950, which are actually synonymous and should be identified by specific brands. When inquiring about purchases, be clear that they are similar and different to avoid misunderstandings.
Safety & Operational Standards
Aluminum Diethyl Phosphinate Flame Retardant for PBT, its properties are white powder, physicochemical stability, easily soluble in organic solvents but insoluble in water. When handling this material, you must be cautious. Although its chemical properties are stable, when burned at high temperature, it is easy to release toxic gases, such as phosphide and organic volatiles, which damage people's spirits and invade the body. During operation, the first time is to close the house for ventilation to ensure smooth air. For mixing, cutting, sub-packaging and other links, the operator must wear protective gloves, goggles, and nose and mouth masks to avoid the risk of skin, eyes, and respiratory infections. If it accidentally touches the skin, it should be washed with running water and soap immediately; if it splashes the eyes, it should be rinsed thoroughly with water in a hurry, and if it is serious, go to the doctor. Storage should be dry and ventilated, away from fire sources, heat sources and strong acids and alkalis to prevent physical deterioration. The container must be sealed and covered with a rear cover. It must not be stored with food and medicine to prevent accidental use. After each operation, clean the utensils to remove the residual dust and properly dispose of the residue. When damaged and leaking, collect it with an inert adsorbent, and do not rinse it with water to prevent further spread. Its waste is disposed of in accordance with the "Hazardous Waste Management Regulations", and cannot be arbitrarily burned and discharged into the environment. Operators must go through Security Training, understand the reason, and recognize the harm before they can serve. Safety notices should be set up at the construction site, and first aid equipment should be kept on hand. In case of accidental fire, water is prohibited, and dry powder, foam or carbon dioxide fire extinguishers should be used. Every time you encounter a new job or new material, you should especially check the SDS (Chemical Safety Technical Manual) carefully, act according to the rules, and do not act rashly. Daily management should be regularly inspected to prevent the small and gradual. In this way, you can ensure people's safety, material integrity, and progress, and prevent problems before they happen.
Application Area
Aluminum Diethyl Phosphinate Flame Retardant for PBT, light and macroscopic, can be used in polybutylene terephthalate (PBT). Its stability, excellent heat resistance, often applied to electrical and electronic devices, such as connectors, insulating shells, switches, etc., can greatly improve the flame retardant effect. It is used in transportation equipment, automotive parts, to help materials fire safety, and it is also suitable for household appliances to strengthen their flame resistance. And because of its halogen-free formula, it is widely favored in high-standard fields of environmental protection, such as data communication equipment, veneer electronics, lighting equipment, etc. Fine fibers and new building materials can be used for all stages of fire safety. It is not easy to precipitate, does not pollute the environment, and is in line with the purpose of modern green sustainable development. Its application has become increasingly widespread, becoming an important corner in the field of polymer flame retardant materials.
Research & Development
Aluminum Diethyl Phosphinate Flame Retardant for PBT, and its properties are stable, especially suitable for the modification of PBT. Since ancient times, the material is flammable, and the system is disaster-proof, which is difficult to meet the needs of contemporary safety. Modern craftsmen, with the progress of Mu Technology, have dedicated themselves to exploring the way of flame retardancy. So those who aspire to melt aluminum diethylphosphonate in PBT have undergone many experiments to reconcile the ratio, monitor the pyrolysis, and analyze the mechanism. The results show that the flame retardant efficiency is significant, the thermal stability is excellent, the smoke content is low, and it has environmental protection benefits, which is better than the ancient bromine flame retardant method. And because of its good compatibility, it does not damage the mechanical properties of the matrix, which is convenient for industrial use. So far, the research and application of new materials has continued to evolve, creating a barrier to safety, ushering in a green future, and leading the trend of polymer flame retardant technology.
Toxicity Research
Aluminum Diethyl Phosphinate Flame Retardant for PBT, used for poly (butylene terephthalate) (PBT), is widely used in this world. However, its toxicity cannot be ignored. Taste rodents as a test, take different doses, observe their acute and chronic reactions, test blood routine and liver and kidney function. High doses cause cough, burnout, loss of appetite, but the lethal dose is very high. Under conventional doses, no significant abnormalities in animal physiological indicators were found, and no obvious damage to liver and kidney structures was shown in pathological sections. However, long-term exposure, high doses may cause oxidative stress, and the activity of intracellular enzymes may be perturbed. In addition, in vitro cell experiments, aluminum ethyl phosphonate has no significant cytotoxicity to human cells. Summarizing the various tests, the toxicity of the flame retardant is minimal under conventional dosage, but caution against high exposure and accumulation effects still requires long-term tracking to minimize the change.
Future Prospects
Aluminum Diethyl Phosphinate Flame Retardant for PBT, which is now widely used in many fields such as electronics, electrical appliances, automobiles, etc. Its flame retardant effect is outstanding, and it has both thermal stability and environmental protection. It is a consensus in the industry. Looking to the future, its preparation process should be more refined, impurities must be eliminated, and its performance will be more efficient. If nanotechnology, surface modification, etc. can enhance the synergy with PBT, its mechanical properties and durability can be combined. Then use renewable raw materials to enter the road, conform to the wind of low carbon, and achieve sustainable development. Its application will be more and more widely expanded, and it will be adopted in emerging fields such as 5G, high-speed rail, and intelligent manufacturing. Aluminum diethylphosphonate flame retardant has a broad road ahead, and its innovation steps are not endless.
Where to Buy Aluminum Diethyl Phosphinate Flame Retardant for PBT in China?
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As a leading Aluminum Diethyl Phosphinate Flame Retardant for PBT 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 performance characteristics of Aluminum Diethyl Phosphate Flame Retardant for PBT?
Aluminum Diethyl Phosphinate Flame Retardant for PBT is a high-quality flame retardant in poly (butylene terephthalate) (PBT), with mild and good properties and inclusiveness. Its main properties can be listed at several ends:
First of all, this agent has high thermal stability, can resist the heat of melting, is not easy to precipitate or damage, and is suitable for blending with PBT during high-temperature processing, without losing its function for a long time. Its decomposition temperature far exceeds that required for PBT molding, so it is not easy to decompose gas during processing to ensure the purity and mechanical properties of the product.
Secondly, aluminum-based diethylphosphonate is a gas-solid synergistic flame retardant, which can not only generate acidic phosphine-based volatiles at high temperatures, absorb combustion heat, dilute combustible gases, but also promote carbonization in the solid phase, forming a dense protective carbon layer, blocking oxygen infiltration and heat conduction, thus effectively inhibiting the spread of fire. Its reaction mechanism is a wonderful combination of heaven and earth, both internalizing and commending, and it is not accessible at one end.
Furthermore, this flame retardant white powder has excellent dispersion performance and is easy to mix evenly with PBT or its blends. Its particle size is fine, which does not damage the mechanical strength of the surrounding material, and the rigidity, toughness, fluidity and apparent luster of the product are more elegant and harmonious than traditional halogen flame retardants.
Aluminum-based diethylphosphonate does not contain halogen, and the smoke and corrosive gas during combustion are extremely low. The product is safe and environmentally friendly, meets the current regulations and green design purposes, and adapts to the environmental protection requirements of European Union RoHS, REACH, etc., and has a wide application prospect.
In addition, the amount of this agent added is moderate, that is, it can reach UL94 V-0 or V-1 and other high flame retardant grades. And it has strong blending compatibility with glass fiber, polyester, elastomer, etc., the product size is stable, the thermal deformation temperature is high, the color is pure, and the performance is not easy to attenuate.
In summary, aluminum-based diethylphosphonate flame retardants are used in polybutylene terephthalate, which have the advantages of thermal stability, flame retardant efficiency, environmental protection and safety, and convenient processing. It is a good aid for the high-performance flame retardant modification of PBT in this world. If you make good use of its strengths, you will definitely be able to help products surpass their peers and be widely respected.
How is the Aluminum Diethyl Phosphate Flame Retardant for PBT Compatible with PBT Materials?
Aluminum Diethyl Phosphate Flame Retardant for PBT exhibits moderate to good compatibility with PBT materials, though this depends on several factors. Its chemical structure, featuring organic ethyl groups and an inorganic aluminum phosphate core, balances polarity to interact with PBT’s ester linkages, aiding dispersion.
At typical addition levels (15-25 wt%), it disperses relatively uniformly in PBT matrices, reducing issues like agglomeration or phase separation that could compromise mechanical properties. However, higher loadings (exceeding 30 wt%) may lead to uneven distribution, as the inorganic component’s polarity mismatches PBT’s partially nonpolar segments, causing slight viscosity increases and potential surface defects.
To enhance compatibility, surface treatment of the flame retardant with coupling agents (e.g., silanes) is effective. These agents bridge the flame retardant and PBT, improving interfacial adhesion, minimizing stress concentration, and preserving PBT’s mechanical performance. Overall, with proper formulation, it maintains sufficient compatibility for most PBT applications requiring flame retardancy.
How much is the addition amount of Aluminum Diethyl Phosphate Flame Retardant for PBT?
The addition amount of Aluminum Diethyl Phosphate Flame Retardant for PBT is usually affected by various factors, such as the specific grade of PBT, processing conditions, and the required flame - retardant grade. Generally, when used alone, the addition amount is about 15% - 20% (by weight).
For example, in some PBT composite materials for electrical accessories, when the goal is to achieve the UL94 V - 0 classification (with a thickness of 0.8 - 1.6 mm), the addition amount of aluminum diethyl phosphate is often controlled at about 15% - 18% (by weight). If it is used in combination with other flame retardants, such as melamine polyphosphate, the addition amount of aluminum diethyl phosphate can be appropriately reduced. According to relevant patents, in a PBT composite material, when using a certain proportion of aluminum diethyl phosphate, melamine polyphosphate and phosphate ester in combination, the addition amount of aluminum diethyl phosphate can be 12 - 20 parts (by weight) when the PBT resin is 30 - 60 parts (by weight). In short, the specific addition amount needs to be determined through experiments according to the actual situation to achieve the best balance of flame - retardant performance and other properties of PBT materials.
Does the Aluminum Diethyl Phosphate Flame Retardant for PBT affect the physical pr
Does the Aluminum Diethyl Phosphate Flame Retardant for PBT affect the physical properties of PBT during processing?
Aluminum Diethyl Phosphate Flame Retardant for PBT has a certain impact on the physical properties of PBT during processing.
Mechanical properties: Aluminum diethyl phosphate is an inorganic - organic composite flame retardant. When added to PBT, it may affect the mechanical properties of PBT. If the addition amount is too high, it may cause problems such as poor dispersion, resulting in a decrease in the tensile strength and impact strength of PBT materials. However, if it is used in combination with appropriate additives, such as some nano - fillers or toughening agents, the loss of mechanical properties can be compensated.
Thermal properties: This flame retardant has good thermal stability, which can improve the thermal stability of PBT to a certain extent. During the processing, it can promote the formation of a char layer on the surface of PBT, which plays a role in heat insulation and oxygen isolation, and can reduce the thermal decomposition rate of PBT. For example, when compounded with polyphenylene sulfide, it can increase the heat - distortion temperature, thermal decomposition temperature and high - temperature residue rate of glass - fiber - reinforced PBT.
Fluidity: To some extent, aluminum diethyl phosphate will affect the fluidity of PBT. As an inorganic filler, too much addition will increase the viscosity of the PBT melt, resulting in poor fluidity, which may affect the molding of products, especially for thin - walled products. Therefore, in actual production, the addition amount needs to be controlled, and sometimes a processing aid is added to improve the fluidity.
How is the environmental performance of Aluminum Diethyl Phosphate Flame Retardant for PBT?
Aluminum Diethyl Phosphate Flame Retardant for PBT has good environmental performance, which is in line with the current development trend of environmental protection.
Halogen - free: It belongs to a halogen - free flame retardant, which does not contain harmful halogen elements such as chlorine and bromine. When burned, it will not produce a large amount of toxic and corrosive gases, such as hydrogen chloride and hydrogen bromide, reducing the harm to the environment and human body during combustion, and is in line with the requirements of relevant environmental protection regulations such as RoHS.
Low - smoke property: During the combustion process, the amount of smoke generated is relatively small, which can reduce the harm of smoke to the human body and the environment in case of a fire, and is conducive to personnel evacuation and fire - fighting operations. Compared with some traditional flame retardants, it has obvious advantages in smoke suppression.
Degradation characteristics: Its main degradation products are diethyl phosphonic acid and aluminum phosphate, which have little impact on the degradation of PBT, and these degradation products are relatively environmentally friendly and are not easy to cause long - term pollution to the environment. In addition, aluminum diethyl phosphate has good compatibility with PBT, is not easy to precipitate, and will not cause environmental pollution due to precipitation during use or after waste.
