Thermosetting materials in when heated usually decomposition out flammable gas, formed by the fire has certain prevent flame spreading ability carbonized layers, the carbonized depends on formula.
热固性材料在受热时通常分解出易燃气体，受火后形成具有一定的阻止火焰传播能力的炭化层，炭化程度取决于配方。
Thermosetting materials in when heated usually decomposition out flammable gas, formed by the fire has certain prevent flame spreading ability carbonized layers, the carbonized depends on formula.
热固性材料在受热时通常分解出易燃气体，受火后形成具有一定的阻止火焰传播能力的炭化层，炭化程度取决于配方。
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