High-temperature-resistant and impact-resistant cable material
An impact-resistant and high-temperature-resistant technology, used in rubber insulators, organic insulators, etc., can solve the problems of poor impact resistance and low mechanical properties of silicone rubber, and achieve the effect of increasing impact resistance, increasing impact resistance, and promoting uniform reaction.
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Embodiment 1
[0015] A high-temperature-resistant and impact-resistant cable material, the raw materials of which include by weight: 80 parts of silicone rubber, 35 parts of modified polyurethane, 25 parts of kaolin, 50 parts of organic montmorillonite, 3 parts of tributyl citrate, aluminum hydroxide 35 parts, 9 parts zinc borate, 1 part double 25, 0.15 parts sulfur, 0.2 parts accelerator BZ, 4 parts dibutyl tin oxide, 4 parts paraffin oil;
[0016] Among them, in the preparation process of modified polyurethane, in nitrogen atmosphere, add 2,4-toluene diisocyanate and polytetrahydrofuran diol 2000 into N-methylpyrrolidone and mix evenly, heat up, keep stirring, add benzyl peroxide Acyl and dimethylolpropionic acid were mixed evenly, heated up, and kept stirring to obtain a mixed solution; adjusting the temperature, adding silane coupling agent modified montmorillonite to the mixed solution, mixed evenly, kept stirred, cooled to room temperature, added water to settle, and filtered , and dr...
Embodiment 2
[0018] A high-temperature-resistant and impact-resistant cable material, the raw materials of which include by weight: 70 parts of silicone rubber, 40 parts of modified polyurethane, 20 parts of kaolin, 60 parts of organic montmorillonite, 2 parts of tributyl citrate, aluminum hydroxide 40 parts, 8 parts of zinc borate, 1.5 parts of bismuth, 0.1 part of sulfur, 0.3 parts of accelerator BZ, 3 parts of dibutyltin oxide, 5 parts of paraffin oil;
[0019] Among them, in the preparation process of modified polyurethane, in nitrogen atmosphere, add 2,4-toluene diisocyanate and dry polytetrahydrofuran diol 2000 into dry N-methylpyrrolidone and mix evenly, heat up to 50°C, keep stirring After 90 minutes, add benzoyl peroxide and dimethylol propionic acid and mix well, raise the temperature to 70°C, keep stirring for 6 hours to obtain a mixed solution, in which, 2,4-toluene diisocyanate, polytetrahydrofuran diol 2000, N-methylpyrrolidone The weight ratio of benzoyl peroxide and dimethy...
Embodiment 3
[0021] A high-temperature-resistant and impact-resistant cable material, the raw materials of which include by weight: 90 parts of silicone rubber, 30 parts of modified polyurethane, 30 parts of kaolin, 40 parts of organic montmorillonite, 4 parts of tributyl citrate, aluminum hydroxide 30 parts, 10 parts of zinc borate, 250.8 parts of bismuth, 0.2 parts of sulfur, 0.1 parts of accelerator BZ, 5 parts of dibutyltin oxide, 3 parts of paraffin oil;
[0022] Among them, in the preparation process of the modified polyurethane, in a nitrogen atmosphere, add 2,4-toluene diisocyanate and dry polytetrahydrofuran diol 2000 into dry N-methylpyrrolidone and mix evenly, raise the temperature to 60°C, and keep stirring After 60 minutes, add benzoyl peroxide and dimethylol propionic acid and mix well, raise the temperature to 80°C, keep stirring for 5 hours to obtain a mixed solution, in which, 2,4-toluene diisocyanate, polytetrahydrofuran diol 2000, N-methylpyrrolidone , benzoyl peroxide, ...
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