High-temperature resistant and expediting setting dealcoholized type room temperature vulcanized silicone rubber adhesive and preparation method thereof

The invention discloses a high-temperature resistant and expediting setting dealcoholized type room temperature vulcanized silicone rubber adhesive and a preparation method thereof. The adhesive is prepared from the following components by weight: 100 parts of hydroxyl-terminated polydimethylsiloxane with the viscosity ranging from 4000 to 12000 Pa.s, 3 to 20 parts of fumed silica, 0.1 to 6 parts of viscosity increasers, 1 to 7 parts of cross-linking agents, 0.1 to 1 part of catalysts, 2 to 8 parts of titanium dioxide and 0.1 to 5 parts of hydroxy finishing agent, and is prepared by the following methods: (1) the hydroxyl-terminated polydimethylsiloxane, the fumed silica and the titanium dioxide are uniformly mixed to obtain a mixture, and the mixture is led into a vacuum drying chamber and then is dried and defoamed; and (2) under the dry environment, the hydroxy finishing agent, the viscosity increaser, the catalyst and the cross-linking agent are added to the mixture and stirred with under vacuum at room temperature, thereby preparing the adhesive. The adhesive of the invention has the advantages of high and adjustable setting speed, excellent mechanical property, favorable resistance to high temperature and strong bonding force.