Phosphoric acid nitrile flame retardant without halogen flame retardant

Phosphoric acid nitrile flame retardant without halogen flame retardant

Phosphorus nitrile compounds based on P, N double bonds are arranged alternately as the main chain structure of a kind of inorganic compounds, exist in circular or linear structure, on the phosphorus atoms access phenoxy this product, the introduction of the phenoxy phosphorus nitrile compounds as the combination of the inorganic compounds and organic compounds, is a kind of good halogen-free environment-friendly green flame retardant.

Due to phosphorus flame retardant to prepare a good synergy between nitrogen, has higher thermal decomposition temperature and flame retardant effect, less smoke and toxic gases, a kind of environmentally friendly flame retardant material, can meet the requirements of European Union RollS and WEEE directive.

The flame retardant mechanism of phosphic nitrile compounds is characterized by the synthesis of four pathways. The thermal decomposition of phosphoric acid, phosphoric acid and polyphosphoric acid can form a layer of nonvolatile protective film on the surface of the polymer material, isolating the air, which is the mechanism of the isolation membrane.
 
At the same time, carbon dioxide, ammonia, nitrogen, water vapor and other gases are released, which is the dilution mechanism. These don't burning gas blocking the supply of oxygen, the purposes of the flame retardant efficiency and collaboration, and polymer combustion PO, group formation, it can be with h., HO reactive group of the area of the flame, have the effect of inhibiting flame, this is terminate chain reaction mechanism. Because of the synergistic effect, the system shows good flame retardant performance.

The addition of halogen free flame retardant for large-scale integrated circuit packaging; Epoxy resin molded plastic, coated copper plate, powder coating, LED luminescent tube and other polymer materials flame retardant, comply with eu REACH regulation, ROHS standard. It can achieve the fire-retardant performance of the UL-94 VO, and the flame retardant performance is much better than the traditional flame retardant system.

With halogen flame retardant refers to contain halogen polymers or combination containing halogen flame retardant flame retardant compounds, are mainly antimony trioxide and ten pbdes, is often said that the antimony bromide flame retardants, bromine and antimony flame retardant with excellent flame retardant properties, have been widely used as resistance material material.



Triphenyl Phosphate (TPP)

Flame retardant tpp This product has good transparency , flexibility and good benefits antimicrobial resistance, with water, oil, electrical insulation and compatibility. Mainly for the cellulose resin, a vinyl resin, natural rubber and synthetic rubber flame retardant plasticizers may also be used for acetate and glycerol triacetate film thin , rigid polyurethane foam , phenolic resin, and engineering plastics such as resistance PPO burning plasticized . Flame Retardant tpp manufacturer price mainly in Jiangsu .

Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.

Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.


However, in the event of a fire, the heat produced by such use of halogen flame retardants produces a large amount of smoke and toxic corrosive hydrogen halide gas, resulting in a secondary hazard. In February 2003, the European Union has issued two WEEE and RoHs instruction, WEEE is about the recycling of waste electrical and electronic equipment directive, RoHs is about restrictions in electronic electrical equipment and ban the use of some poisonous and harmful substances and elements of the instructions.

In August 2004, the two orders were converted into laws (regulations) in the 15 member states of the European Union. Western Europe began to implement new flame retardant classification methods and test standards in line cables, building materials, coatings and other industries.

China has also begun to register national standards for building materials and grades of combustion performance. China flame retardant performance level and the national institute of standards and new standards of Western Europe has many same characteristics, that is: to emphasize the development rate of fire, heat release rate, smoke and corrosive products of combustion and toxicity to the standard of judging flame retardant performance. In order to pass such new standards, the traditional halogenated antimony and halogen flame retardant materials will appear powerless.

New flame retardant system, the smoke quantity is small when combustion, do not produce corrosive, poisonous gas. Halogen - free flame retardant mainly based on phosphorus and metal hydroxide.

Halogen-free flame retardants have - W666 is a high-performance phosphorus and nitrogen organic fire retardant agent, is a kind of triazine three ketones compounds and triazine amine compounds, through a special surface treatment, so easy to disperse in the plastic material, not precipitation, has excellent flame retardant effect. W666 decomposition temperature about 450 ℃, the maximum particle size distribution (D50 %) of 20 / um, appearance is white powder, is a kind of color does not affect the product's resistance to high temperature of high-performance halogen-free flame retardants recommended for polyamide (nylon) are widely used in epoxy resin, polyurethane, polystyrene, polyester (PET, PBT), polyolefin and halogen-free, wire and cable suggested adding 15% 15% of halogen free flame retardant W666, would be able to reach the where V0-94 ul standard of V2.

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