No halogen organic flame retardant

No halogen organic flame retardant

There are many kinds of organic flame retardants, and the development speed is very fast, which can be divided into halogen flame retardants and halogen free flame retardants. Halogen flame retardants are used as the first class of flame retardants, but they are heavily restricted due to the release of toxic gases. Halogen free flame retardant does not contain halogen, the flame retardant effect is good, the gas that produces when heat dissociation is low smoke, low poison, receive widespread welcome.

Halogen free flame retardant can be divided into phosphor flame retardant, nitrogen flame retardant and expansive flame retardant, etc. The development of halogen organic flame retardant is very fast.

Organic halogen free flame retardant of organic phosphorus flame retardants is one of the most important varieties of flame retardant, flame retardant and plasticizing effect, can make no halogenated flame retardant fully, improve the flow performance of plastic molding, inhibit the residue after burning, the toxic gas and corrosive gas less than halogen flame retardant, the mechanism of flame retardant for: on the one hand, flame retardant thermal decomposition to produce phosphoric acid, metaphosphoric acid, poly (phosphoric acid, containing the phosphate has strong water, can make the polymer surface coking, dehydration and elemental carbon cannot happen evaporation and decomposition combustion flame, so have flame retardant effect; On the other hand, flame retardant can produce PO free radicals, which can absorb the H·HO free radicals in large quantities, thus disrupting the combustion reaction. The main flame retardants of organophosphorus are phosphatate, phosphonate, phosphine and heterocyclic.

The flame retardant of halogen organic flame retardant belongs to additive flame retardant. Because of its abundant resources, the price is cheap, the application is very wide. The phosphates are reacted with the corresponding alcohol or phenol and the phosphorus trichloride, and then hydrolyzed. The market has developed successfully and a large number of phosphate flame retardants are trimethylphenyl phosphate, triphenyl phosphate, triphenyl phosphate, tributyl phosphate, trioctyl phosphate, and a



Phosphate tert-butyl benzene diphenyl phosphate (BPDP-71B) export cargo safety data

CAS No.:56803-37-3

HS 29199000

Tert Benzyl diphenyl phosphate (BPDP-71B) raw materials

The raw materials are p-tert-butylphenol and phosphorus oxychloride.

Tert Benzyl diphenyl phosphate (BPDP-71B) use

Tert-butyl phosphate diphenyl phosphate, tert-butylated triphenyl phosphate is halogen-free organophosphorus flame retardant, using a new, excellent performance of phosphorus flame retardant, with excellent thermal stability and hydrolysis Sex. Its high thermal stability makes it as an engineering plastic flame retardant at the same time, can improve the plastic melting performance. Tert-butylated triphenyl phosphate for the liquid, in the resin can make its durability and hydrolysis stability is better, and easy to produce the table and stress cracking. It is widely used in flame retardant PV (, cellulose resin, into the rubber, phenolic resin, epoxy resin, polyene unit fiber.


Phenyl diphenyl phosphate and so on. The variety of phosphate ester is wide and versatile, but most phosphate ester products are liquid, with poor heat resistance and high volatility, which is not ideal for the compatibility of polymers. To this end, both at home and abroad to develop a batch of new type phosphate flame retardants, such as three (1 - - phosphorus mixed oxygen generation - 1-2, 6 - three oxygen mixed double loop,2,2 [2] octane - 4 - methylene) phosphate ester (Trimer) and 1 - oxygen - 4 - hydroxy methyl - 2, 6 - three oxygen mixed - 1 - phosphorus mixed double loop,2,2 octane (PEPA). Trimer's characteristics are structural symmetry, phosphorus content is 21.1%, and PEPA's phosphorus content is 17.2%. The two kinds of phosphate flame retardants are white powder. The thermal stability is very good and has good compatibility with the polymer.

Phosphonate flame retardant is a kind of flame retardant which has a promising future. Because of the c-p bond in the phosphonates, the stability is very good, and it has very good water resistance and solvent resistance. Domestic also studied the phosphonic acid ester, the synthesis of phosphonic acid ester with N, N - of phenylene diamine (2 - hydroxyl) dibenzyl phosphonic acid ethyl ester, dimethyl methyl phosphonic acid (DMMP), one of DMMP was developed to add flame retardant agent.

DMMP is the raw material of trimethyl phosphonate, and it has a heterogeneous reaction under the action of catalyst. The most notable feature of DMMP is that the phosphorus content is as high as 25%, and the flame retardant effect is very good, and the addition amount can be used in the first half of the commonly used flame retardant.

The hydrolytic stability of phosphine is better than that of phosphate, which is a highly stable organic phosphine compound, which can be used as a flame retardant of polyester, with good color of flame retardant polyester and good mechanical properties. This kind of flame retardant is divided into two categories, one is additive and the other is reactivity. The preparation of flame-retardant engineering plastics has become a hot topic in the study of the introduction of triaryl oxide monomer in the homogenation of high relative molecular weight.

Mixed with phosphine oxide containing the active functional group monomer copolymerization, can produce flame retardant polyester, polycarbonate, epoxy resin and polyurethane etc., combination of phosphorus monomer through reaction to the molecular chain of synthetic material, give material permanent flame retardancy, and no leakage.

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