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The high temperature vulcanized silicone rubber you should know! ONE

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High temperature vulcanized silicone rubber is a high molecular weight (molecular weight is generally 400-800,000) polyorganosiloxane (ie raw rubber) added with reinforcing fillers and other various additives, using organic peroxide as the vulcanizing agent, and molded under pressure (Molding, extrusion, calendering) or injection molding, and cross-linked into rubber at high temperature. This rubber is generally referred to as silicone rubber for short. The vulcanization of high-temperature vulcanized silicone rubber is generally divided into two stages. The first stage is to mix the raw silicone rubber, reinforcing agents, additives, vulcanizing agents and structure control agents, and then add the mixed materials to the metal mold. Press heating molding and vulcanization, the pressure is about 50 kg/cm2, the temperature is 120-130°C, and the time is 10-30 minutes. The second stage is to remove the silicon rubber from the mold and put it in an oven at 200- Bake at 250°C for several hours to 24 hours. The rubber is further vulcanized and the organic peroxide is decomposed and volatilized.

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