Guangdong special silicone rubber silica powder prices where good

A silicone rubber for silica powder Overview: Silicone rubber for silica powder is the use of high purity natural quartz, processing process unique cleaning and polishing process to produce iron-free by calcination, the color white, pure quality, high transparency. Chemical stability, acid and alkali, large specific surface area, a gap developed surface-active, good dispersion, low oil absorption, thickening and strong, high temperature, electrical insulation, anti-ultraviolet, and silicone mixing or heating is not It will change color and other characteristics. Powder white (whiteness ≥94), high silica content, neutral non-crystalline water, epoxy resins and curing agents are not involved in a solid reaction, it is a kind of stable inorganic powder filler. Second, our product specification sheet: Silicone rubber for silica powder of 400 mesh size 600 mesh 800 mesh mesh 1250 1000 1500 4000 2000 mesh mesh mesh mesh 8000 6000 10,000 head three head, silicone rubber for silica powder characteristics: 1. narrow particle size distribution , good particle morphology. 2. wettability big, strong and binding polymer, mutual compatibility is good. 3. whiteness, good fluidity. The low level of impurities and stable. Fourth, special silicone rubber Silica performance parameters: Product name commonly used mesh whiteness hardness (Mohs) Features special silicone rubber Silica 92-957 1000-4000 -7.5 high whiteness, low moisture content , good insulation; five, microsilica in the application of the silicone rubber has a very good reinforcement performance: 1, excellent dispersion flow and leveling, tear, tensile pull, anti-aging, and reinforcing effect. Relative to the market in the low-end of precipitated silica, quartz powder SiO2 content (99.6%), moisture content (less than 0.1%), particle size, oil absorption and other major technical indicators are better than precipitated white carbon black. 2, in the large-sized truck tires and car speed radial tire rubber filled surface reaches more than 20 percent of ultra-fine silica powder, the tire has good slip, heat, abrasion and other characteristics; the addition of ultra-fine silica powder to tire After the tread can significantly reduce tire rolling resistance, tear resistance and enhanced cut resistance and strength, anti-ice and keep the tires skid resistance, known as the green tire. Europe and America are now widespread use of this tire. 3, can improve the strength and quality of the silicone rubber (filling amount of 30 to 70%); both heat curing silicone rubber or RTV silicone rubber are subject to reinforcement, have practical value. Without reinforced silicone rubber strength is low, there is no practical value. 4, after the addition of ultra-fine silica powder in tires and other rubber products, its flexibility, toughness, wear resistance and strength so much better than the conventional, ordinary silica filler made of tires and rubber products. 5, ultra-fine silica powder packed in natural rubber, butadiene rubber, nitrile rubber, rubber compound powder easily dispersed, good mixing process performance, rolling and extrusion is excellent, and can improve the cure rate of vulcanized rubber, Promotion rubber sticky, replace 50% of silica filled rubber compound, the mechanical properties of products (tensile strength, tensile strength, elongation at break, tensile permanent deformation, tear strength and product hardness, etc.) are no significant effect, but it can significantly reduce product costs, especially for the rubber roller, hose, wire and cable sheathing and other rubber products. Summary: Silicone rubber reinforced with ultra-fine silica powder to adjust the hardness silicone rubber, improved oil resistance, solvent resistance and processing properties of rubber vulcanizates, especially ultra-fine silica powder is added in the silicone rubber, we could greatly reduce the cost of silicone rubber material. Therefore, ultra-fine silica powder plays an important role in the silicone rubber. Anti-ultraviolet radiation, infrared reflection, high dielectric insulating indispensable excellent filler, and has good transparency.