Liquid silica gel, abbreviated as LSR in English, is a product that can be favored by consumers and manufacturers. Liquid silica gel is made of silica gel products, which has good elasticity, water and moisture resistance, acid, alkali and other chemical substances, so it is generally used to replace domestic plastics.

Liquid silicone rubber is a kind of flexible thermosetting material with non-toxic, heat resistance and high recovery. Its rheological behavior is mainly characterized by low viscosity, rapid curing, shear thinning and high coefficient of thermal expansion. LSR is a double liquid rapid vulcanization material with platinum as catalyst. It can be produced by injection molding, mass, rapid vulcanization and repetitive machinery. Its products show good thermal stability, cold resistance, excellent electrical insulation performance, and will not produce toxic substances during combustion.

characteristic

1. Wide temperature resistance range: - 50 ℃ - 250 ℃

2. It has stability and anti-aging under any weather and ultraviolet radiation.

3. High insulation: dielectric strength ≥ 20kV / mm

4. The curing speed is about 10 times that of conventional solid silica gel

5. In low temperature environment, it can stand by for a long time in the barrel

6. Combined with PA, PA6, PA66, PBT, PC, PPS and other materials, good bonding can be obtained

7. Liquid injection molding process, vulcanization molding, accurate measurement and less material waste

8. The vulcanization temperature is low, the molding cycle is short, and the production cost is reduced

9. The product has high precision and can process complex shape products

10. There are no by-products in the vulcanization process, and there is no need for two-stage vulcanization

11. The products have the characteristics of excellent aging resistance, weather resistance, non-toxic, high transparency, high mechanical strength and good elasticity

Difference between liquid silica gel and solid silica gel

Distinguish from appearance:

Liquid silica gel is a liquid state with fluidity; Solid silica gel is solid and has no fluidity.

Distinguish from the field of use:

1. Liquid silica gel is generally used in baby products, kitchen products and medical products, which can directly contact food and human body;

2. Solid silica gel is generally used in daily necessities, industrial miscellaneous parts and auto parts;

3. Safety of liquid silica gel and solid silica gel: liquid silica gel is a food grade material with high transparency and safety. Vulcanizing agent and other auxiliary materials are not added during molding, and it is sealed and fed for molding. Solid silica gel is a transparent material. Vulcanizing agent needs to be added during molding to speed up the vulcanization molding time and open mold feeding molding.

From the forming method:

1. Liquid silica gel is injection molded liquid silicone rubber (LSR): its full name is injection molded liquid silicone rubber, and the vulcanization equipment is injection molding machine. The injection molding machine has the advantages of very simple process flow, high product accuracy, high output (A / b glue is mixed at a certain temperature for a few seconds), saving people, electricity and materials. It can produce all products produced by high-temperature glue; It will be a mainstream in the development of silicone rubber materials in the coming years;

2. Solid silica gel molding is that the raw materials are solid pieces. After mixing by the mixer, the cutting machine cuts the products into the appropriate size and thickness of the product and mold, and then puts them into the mold. It is molded at a certain temperature under the pressure molding machine. When demoulding, it is similar to plastic products, and the mold also needs to be cleaned.

Distinguish from finished products:

Liquid silica gel has high transparency and no peculiar smell, and the product has a glue injection port;

Solid silica gel has low transparency, has the smell of vulcanizing agent or other covering vulcanizing agent, and the product has no glue injection port.

application

It is widely used in the production and design of health products, automobiles, baby products, medical products, diving products, kitchen appliances and seals.