Flame-retardant silicone rubber and preparation method thereof
A technology of silicone rubber and anilinomethyltriethoxysilane, which is applied in the field of building materials, can solve the problems of unsuitable fire protection requirements and poor flame retardant performance, and achieve good elasticity, excellent flame retardant performance and convenient use Effect
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Embodiment 1
[0022] First, pretreat 10 parts by weight of polyether diol at -0.005MPa and 65°C for 30 minutes, then add 10 parts by weight of toluene diisocyanate for chemical reaction for 100 minutes after degassing; then add 20 parts by weight of aniline methyl base triethoxysilane, and continue to react for 60 minutes; then add 50 parts by weight of magnesium hydroxide, fully disperse and extract through dehydration to obtain the fire-resistant silicone rubber.
Embodiment 2
[0024] First, pretreat 20 parts by weight of polyether diol at -0.1Mpa, 45°C for 40 minutes, and then add 5 parts by weight of diphenylmethane diisocyanate for chemical reaction for 120 minutes after degassing; then add 30 parts by weight of Diaminoethylaminopropyltrimethoxysilane, continue to react for 120 minutes; then add 60 parts by weight of ammonium polyphosphate, fully disperse, dehydrate and extract to obtain the fire-resistant silicone rubber.
Embodiment 3
[0026] First, 30 parts by weight of polyether diol was pretreated at 0.05Mpa and 105°C for 50 minutes, and after degassing, 15 parts by weight of hexamethylene-1,6-diisocyanate was added for chemical reaction for 180 minutes; 40 parts by weight of γ-aminopropyltrimethoxysilane was continued to react for 110 minutes; then 30 parts by weight of aluminum hydroxide was added, fully dispersed and extracted by dehydration to obtain the fire-resistant silicone rubber.
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