Liquid silica gel is relative to solid high temperature vulcanized silicone rubber, which is liquid glue, has good fluidity, fast vulcanization, more safe and environmental protection, and can fully meet the requirements of food grade. Liquid silica gel has excellent tear strength, resilience, yellowing resistance, thermal stability, heat aging, mainly used for children's products, medical supplies and electronic products (buttons).

Liquid silica gel uses:

Liquid silicone rubber can be applied, impregnated and perfused. For example, the viscosity of 0.07~50 pa · s /25℃ hydroxyl terminated polydimethylsiloxane, with methyl vinyl bipyrrolidone silane as chain growth agent, with organic peroxide, such as peroxide benzoyl, 25-dimethyl base 5-tert-butylperoxane as curing agent, this glue good fluidity, low viscosity, In the process of vulcanization chain growth reaction occurs at the same time, so high molecular weight elastomers can be obtained, with good physical and mechanical properties. Chain extension agent methyl vinyl pyrrolidone silane, can be composed with methyl vinyl pyrrolidone dichloride silane reaction and, in the presence of triethylamine between product easy to hydrolysis, therefore, should be stored in dry sealed container, the compound of pyrrolidone base at room temperature with polydimethylsiloxane hydroxyl-terminated slow reaction, the reaction rate increases with temperature and speed up. In theory, this reaction can continue until an infinite molecular weight is obtained. The vinyl group in the methyl vinyl pyrrolidone silane can also be used as the activation point of the vulcanization reaction, which can promote the crosslinking of polydimethyl siloxane to form high molecular weight elastomers. Because the reaction between pyrrolidone group and hydroxyl group is very slow at room temperature, the mixture of various components has a long application period, in 1 hour the viscosity of the glue is basically unchanged, but still maintain good fluidity, can be injected into tiny pores. The mixture can be vulcanized into elastomer after heating at 150℃ for 10 minutes.

1, injection molding liquid silicone rubber (LSR): full name is injection molding liquid silicone rubber, curing equipment for injection molding machine. Injection molding machine has A technological process is very simple, need not be in the process of high temperature glue ingredients, mixing, blanking, material and process, only one of the workers take products), high precision products (molding before all the manual program be replaced by A machine), high output (A/B glue mixing under A certain temperature for A few seconds to shape), save, save electricity, save material and so on many merits, Can produce all high temperature glue production products! It is a mainstream of silicone rubber material development in the next few years.

2, mold silicon rubber (RTV-2): used for crafts and low alloy molding mold.

3, electronic silicone rubber (RTV-T): used for moisture-proof, insulating backlight board and heat dissipation materials of electrical components.

4, sealant (RTV-1): commonly known as glass glue, used for building sealing, waterproof engineering, aluminum bonding, electronics and lighting, etc.