Silicone rubber is a polymer synthetic rubber, which is an elastic irreversible impression material. In recent years, it has been widely used in the medical field. As the impression material, it mainl......
2019-11-28(1) High and low temperature resistance Among all rubbers, silicone rubber has the widest working temperature range (-100 to 350 ° C). For example, a properly formulated vinyl silicone rubber or lo......
2019-11-28Inorganic silicone rubber is a highly active adsorption material, usually made by reacting sodium silicate with sulfuric acid and undergoing a series of post-treatment processes such as aging and acid......
2019-11-28Room temperature vulcanized silicone rubber generally includes two types of condensation and addition molding. The addition molding room temperature adhesive is a linear polysiloxane with a vinyl grou......
2019-11-28Heat-vulcanized silicone rubber (HTV) is the most important type of silicone products. Methyl vinyl silicone rubber (VMQ) is the most important type of HTV, commonly known as high-temperature rubber. ......
2019-11-28Cause: Due to the large water permeability of silicone rubber, especially the mixing rubber made by precipitation silica, the moisture content of the mixing rubber increases linearly with the increase......
2019-11-27I personally think that the factors and solutions that affect the rubber resilience and vulcanization speed can be carried out from the following aspects: ① The vinyl content in the rubber is not e......
2019-11-27Transparent paste-like odorless anti-yellowing vulcanizing agent. It is a mixture of peroxide and raw rubber carrier. It is also used in the molding and vulcanizing process of silicone products. Produ......
2019-11-27In the synthesis of silicone rubber, it is necessary to mediate various catalysts and silica white carbon black. The same semi-finished raw materials are indispensable in the process of curing silicon......
2019-11-27Too much plasticizer or structure control agent is added to the rubber compound, resulting in poor rubber resilience and slow vulcanization speed; too much plasticizer or structure control agent is ad......
2019-11-27It is also an important factor that leads to poor rubber resilience and slow vulcanization speed. As the white carbon black itself is acidic, and the added structure control agents are mostly acidic, ......
2019-11-27When the rubber compound does not reach the normal sulfur point during vulcanization, the vulcanization speed is too long, and the vulcanization is insufficient, resulting in poor rubber elasticity. Y......
2019-11-27The waterborne urethane acrylate contains a large amount of reactive groups to impart good flexibility and cohesiveness to the cured film, but at the same time, mechanical properties, solvent resistan......
2019-11-27Silica has a very significant reinforcing effect on various rubbers, among which the reinforcing effect on silicone rubber is particularly outstanding.  ......
2019-11-271. Compounding and dispersing Due to the large specific surface area of white carbon black, it tends to secondary aggregation. In addition, it is very easy to absorb water in the ......
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