Carpet flame retardant: the last line of defense for building plastics

China Coatings Online News:
in building materials, most of the building plastics are combustible materials, and a small number are retardant materials. Plastics in the fire several burning heat, artillery temperature is high, burning speed, release a large number of smoke and toxic gases, so building plastics must be flame retardant characteristics. Add carpet flame retardants: Add carpet flame retardants and inorger fillers to the plastic to give the combustion properties of the plastic finished product a good look. Commonly used inorganic carpet flame retardants are aluminum hydroxide, magnesium hydroxide, magnesium carbonate, zinc borate, zinc dioxide, organic carpet flame retardants are chlorinated paraffin, hexabrominated benzene, decaBDE and so on. Fillers include calcium carbonate, talcum powder, pearl rock powder, zircon powder, clay and so on.
in order for the resin to dissolve well with inorger carpet flame retardants, surface treatment of inorance carpet flame retardants and inorder fillers is required. Common surface treatment agents are silicone, paraffin and so on. Co-mixing - Halogen-containing polymers are generally difficult to burn in all plastic resins, as hydrogen halide has the effect of capturing the combustion process , producing H2O and reducing the amount of H2O, making combustion difficult to carry on. If the resin with poor flame retardant is mixed with the halogen resin, the flame retardant performance is better than that of the original resin. Thinging - in the base polymer widely used flame retardant monomer for joint thyching. For example, in ABS resin branching vinyl chloride monosome, vinyl chloride content reached a certain amount, it has a better flame retardant performance.
the reaction of TBD A and epoxy resin, it can be produced by TBD A ii shrinking glycelyceride epoxy resin, which has a halogen content of 16 to 50%. According
China Coatings online

experts, the higher the bromine content, the better flame retardant. TPB BPA add too much, will make the electrical and mechanical performance of the product decreased, often the brominated epoxy resin and other epoxy resin used together, so that the electrical and mechanical properties of the resin will not be too much decline. In order to make up for the decrease of flame retardant properties caused by this, carpet flame retardants such as trihydrogenated nirium and aluminum hydroxide can be appropriately added. Building materials fire prevention task is very heavy, carpet flame retardant must be added, specific addition methods, according to the performance and requirements of the material to determine. Carpet flame retardants become the last "firewall" for building plastics.
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