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Principle Of Flame Retardant Flame Retardant Masterbatch

Mar 09, 2017

1. produce a stifled the flame from gas, such as antimony trioxide, when it encountered burn PVC produces HCL gas reacts with it to form a foam quenching, namely antimony oxides of nitrogen, and thus play a fire-retardant effect.

2. absorb the heat generated during combustion, cooled, slow down the rate of combustion, such as aluminum hydroxide, which contained chemical bond in a molecule of water as high as 34%, this combination of water in most plastics processing temperature is stable, but break down more than 200 ℃, releasing steam and decompose a mole of aluminum hydroxide, to absorb the 36,000 calories.

3. to provide an isolated isolation with oxygen layer, cut off from oxygen and self-extinguishing, such as phosphate ester flame retardant generated during combustion of phosphorus compounds is the layer of oxygen.

4. generate free radicals can react with plastic, and their reaction products with plastic have flame-retardant effect.