| What is a single component room temperature vulcanized silicone rubber One component room temperature vulcanized silicone rubber vulcanization reaction is formed by the effect of moisture in the air and vulcanized elastomer. The single component room temperature vulcanized silicone rubber can be a variety of different types, such as the type of de acid type, the type of take off, the alcohol type, the amine type, the amide type and the ketone type. The curing time of one component room temperature vulcanized silicone rubber depends on the curing system, temperature, humidity and the thickness of the silicone rubber layer, the temperature and humidity of the environment can be improved, and the vulcanization process can be accelerated. Under typical environmental conditions and general 15-30 minutes later, the surface of the silicon rubber can not sticky, thickness of 0.3 cm layer within a day can be cured. The depth and strength of the curing will gradually increase over the next three weeks. One component room temperature vulcanized silicone rubber has excellent electrical properties and chemical inertia, as well as heat resistance, natural aging, flame resistance, moisture resistance, permeability and other properties. They can remain flexible for a long period of time in the range of -60~200. When it is cured, it is not endothermic or exothermic, the shrinkage rate is small, and the adhesive property of the material is good. Therefore, mainly used as adhesives and sealants. Other applications include formed in place gasket, protective coatings and sealants,. Many single component silicone rubber adhesives are formulated to show the automatic bonding properties on a variety of materials such as most metals, glass, ceramics and coagulation. When the adhesive is difficult, at the bottom of the progress in the substrate coating to improve the bonding strength, bottom coating can be a reactive silane monomer or resin, when they on the substrate after curing, generating a layer of modified for silicone adhesive surface. One component room temperature vulcanized silicone rubber is easy to use, but because of its curing is the moisture in the atmosphere, so that the thickness of the vulcanized rubber is limited, can only be used to require 6 mm thickness of the occasion. RTV-1 silicone rubber vulcanization reaction is gradually from surface to depths of the layer thicker, slower curing. When the deep also to fast curing, can be used to gradually curing layer irrigation method, each time can add some rubber, such as after curing and then feeding, which can reduce the total curing time. Magnesium Oxide can accelerate the curing of the deep layer of rubber. |
