Structural features: mainly polydiorganosiloxane containing 2 or more silicon-vinyl groups. Usually it is a linear silicone polymer with a vinyl group at each end of the polymer chain, and some contain a small amount of silicon-vinyl chain segments in the middle of the polymer chain. The most commonly used typical base polymer is α, ω-divinyl polydimethylsiloxane (terminated vinyl silicone oil)



Appearance

The main characteristics of vinyl silicone oil are colorless, odorless, non-toxic, non-volatile liquid, insoluble in water, miscible with benzene, dimethyl ether, methyl ethyl ketone, tetrachlorocarbon or kerosene, slightly soluble in acetone and ethanol. It has a very small vapor pressure, a high flash point and ignition point, and a low freezing point. With the difference in the number of chain segments n, the molecular weight increases and the viscosity also increases, so vinyl silicone oil can have various viscosities. It is widely used as an additive in the production of silicone rubber to enhance the strength and hardness of silicone rubber. It is used to make liquid silicone rubber, and is the main material for injection thermoforming silicone rubber and addition-type electronic potting glue, and is used to make inks, addition-type sealants, etc.

Mainly divided into vinyl-terminated silicone oil and high vinyl silicone oil
Vinyl-terminated silicone oil
is a divinyl-terminated polydimethylsiloxane with stable product quality and low volatility. It is the main raw material for addition-type liquid silicone rubber, silicone potting materials, silicone gel, etc., and a modifier for compound rubber.

High vinyl silicone oil
It is a divinyl-terminated or methyl-terminated polydimethylsiloxane with vinyl in the middle chain. The product quality is stable, low volatility, no yellowing and no cross-linking. It is the main raw material for addition-type liquid silicone rubber, silicone potting material, silicone gel, etc.; modifier for compound rubber; plastic additive, etc.

We developed double-ended vinyl silicone oil based on market demand. It has good reactivity and can undergo cross-linking reaction with hydrogen-containing silicone oil. Due to the different viscosities and different vinyl contents, combined with other catalysts and additives, it is suitable for making addition-type liquid silicone rubber with different hardness and different mechanical properties. In addition, other viscosities and other vinyl contents can be customized according to customer needs.