Vinyl-terminated phenylene ether silicone rubber and preparation method thereof

The preparation method comprises the following steps: mixing 50-60 parts by weight of octamethylcyclotetrasiloxane siloxane, 10-30 parts by weight of 4, 4 '-diphenyl-1, 3, 4, 5-tetramethyl-1, 3, 4, 5-tetramethyl-1, 3, 4, 5-tetramethyl-1, 3, 4, 5-tetramethyl-1, 3, the preparation method comprises the following steps: mixing 4, 4 '-bis (dimethyl hydroxyl silyl) diphenyl ether or a mixture of 4, 4'-bis (dimethyl hydroxyl silyl) diphenyl ether and 1, 4-bis (dimethyl hydroxyl silyl) benzene with 10-20 parts of divinyl tetramethyl disiloxane, and carrying out vacuum drying; adding a catalyst, and reacting in an inert atmosphere; heating to destroy the catalyst, then heating to 170-200 DEG C, and reacting for 0.5-2 hours under the pressure of 5-10 mmHg. Vinyl end capping enables the material to be used as basic rubber of an addition type room temperature vulcanized rubber external heat-proof material, the material reacts with hydrogen-containing silicone oil to serve as a crosslinking component, a generated crosslin