As a non-toxic, odorless and environmentally friendly material, silicone is widely used for its various excellent properties. Various products made of silicone continue to appear in our daily lives.
What I will introduce to you today is silicone foam products. Foamed silicone is also a common product category among silicone products.
Silicone foam, also called addition silicone, uses silicone rubber as the base material and is produced by foaming. The resulting porous rubber structure has a honeycomb-like cross-section and has good resilience and mechanical strength.
Silicone foam has a density (0.3-0.7g/cm3), has a long service life, is pressure resistant, acid and alkali resistant, aging resistant, UV resistant, high and low temperature resistant, environmentally friendly, non-toxic, tasteless, and has good flexibility.
Silica gel foam is a highly active adsorption material that is insoluble in any solvent, has stable chemical properties, and has good dielectric and insulation properties.
Wide operating temperature range, from -60℃ (or lower) to +250℃ (or higher)
Silicone foam production process
The principle of foamed silicone is to add a foaming agent to the selected silicone rubber material, heat and vulcanize it under pressure to foam the silicone rubber, and the rubber material expands to form a sponge-like cell structure. ˆ
Silicone foam needs to go through a series of production processes and processing techniques, and each link will have an impact on the finished product of silicone foam. ˆ
1. Refining
When making foam rubber products, the raw rubber is fully masticated, which will make the rubber more plastic and easier to produce products with uniform cells, low density and low shrinkage. ˆ
2. Park
After the rubber is mixed, it must be left for an appropriate time to allow various additives to be fully dispersed in the mixed rubber. The more evenly the rubber additives are dispersed, the better the product's dimensional stability, surface smoothness, and bubble uniformity will be. good. ˆ
3. Temperature
Rubber foaming is very sensitive to temperature. The foaming effect of the same rubber material is different at different temperatures, because the foaming system and the vulcanization system have different sensitivity to temperature. Changes in the system and different matching degrees will have different effects. different. ˆ
4. Forming
The subsequent processing and molding methods of foam rubber products include extrusion molding, compression molding, flat plate molding, etc. According to the structure, specifications, length, size, shape, hardness, color of the required finished product, as well as the special needs of the drawings, various processes can be carried out. Standard personalized customization.
Silicone foam IOTA-BF-1000
