types of plastic flame sense

Plastic inexhaustible extended use category while its volume increases and flammable and easily ignited a fever , brought to mankind unexpected danger and loss . Began as a flame retardant additive major categories beginning in chemical fiber, plastics industry projections . Brominated flame retardants despite heavy smoke , because of environmental problems by  Glycrin monostearate the EU restrictions ; But since retardant properties, and with less impact on product performance is small, quite a long time thereafter remain within the main flame . Tips progress along the international growth of brominated flame retardants new features is a continuous and progressive increase of bromine content (fèn) molecular weight . Most phosphorus flame retardants (dū) is a liquid , mainly used for PU, PVC and other plastics . Small molecule phosphorus flame retardant main problems are volatile , high heat resistance is not high , now is trying to develop a large molecular weight compounds and oligomers , special suitable for casting finished and soft PU foam guessed . Flame retardant and plasticizer , flame retardant and cross-linked multi- phosphorus flame retardant effect acrylic processing  of the growth is another major aspect is the low temperature flame-retardant plasticizer special probation plasticized PVC is mainly used in the finished product , such as domestic cumene produced two phosphate. Flame number which reflects the activity of the crosslinking agent is a phosphorus-containing polyhydric alcohols , not only as a reflection type flame retardant PU , and also with the brominated flame retardant and used epoxy resin , brominated flame retardant can be greatly reduced dosage . Since phosphorus flame retardant but also to the low toxicity of growth , not only to solve their toxic products , but also to consider the toxicity of the combustion product differentiation and waste pollution problem situations , or even appropriate, production, sales , storage and transportation process (dì) toxicity problems. Aluminum hydroxide usually with a silane coupling agent , titanate coupling agent and stearic acid ( salt ) , etc. before disposal , just started this titanium dioxide  country , foreign countries have been further carried out before the new special effect modifier of aluminum hydroxide open up. Solem new technology company with a silane disposal and disposal of organic silicone coated aluminum hydroxide , in the PP, PE is added to 70% volume of 60 processing still very good , and the physical properties and flame retardancy of progress.
Inorganic synergist new varieties. A small amount of aluminum hydroxide flame retardant synergist can fill data function has obvious improvements , such as restraint dripping , improved mechanical properties . And aluminum hydroxide can play a synergistic role in a wide scope of an inorganic flame retardant synergist , mainly metal oxides and zinc borate , phosphorus-based compound ( red phosphorus , phosphate) , a silicon -based compound, a metal nitrate ( copper nitrate , silver nitrate ) , ammonium polyphosphate , etc. .