Liquid silicone composition and application industry
Liquid silicone is a relatively solid high-temperature vulcanized silicone rubber. It is a liquid glue with good fluidity, fast vulcanization, safer, more environmentally friendly, and can fully meet the requirements of food grade. Liquid silicone products are injection molded using liquid silicone injection molding. The product is soft. Due to its soft characteristics, it is widely used to simulate human organs and medical silicone breast pads.
Liquid silicone products have been favored by many consumers in the market. Their advantages are: non-toxic, odorless, non-oxidizing, non-deformable and reusable. So, how much do you know about the main components and applications of liquid silicone?
The main components of liquid silicone
1. Liquid silica gel is a highly active adsorbent material and an amorphous substance with the chemical formula mSiO2·nH2O. It is insoluble in water and any solvent, non-toxic and odorless, chemically stable, and does not react with anything other than strong alkali and hydrofluoric acid.
2. Various types of silica gel have different microporous structures due to their different manufacturing methods. The chemical composition and physical structure of silica gel determine that it has many other similar materials that are difficult to replace: high adsorption performance, good thermal stability, chemical stability and high mechanical strength.
3. Silica gel is classified according to its pore size: macroporous silica gel, coarse pore silica gel, type B silica gel and fine pore silica gel. Due to the different pore structures, their adsorption properties are different.
4. Coarse-porous silica gel has a higher adsorption capacity in the case of high relative humidity, and in the case of relatively low relative humidity, fine-porous silica gel has a higher adsorption capacity than coarse-pore silica gel, and B due to the pore structure , Silicone has a coarse pore structure. Between the fine pore silica gel, the adsorption capacity is also between the coarse pore and the fine pore. Macroporous silica gel is usually used as a catalyst carrier, matting agent, toothpaste abrasive, etc. Therefore, different varieties should be selected according to different uses. After the silica gel absorbs moisture, it can be regenerated by exposure, baking, air drying, etc.
The main purpose of liquid silicone:
Liquid silica gel has a strong adsorption function, can quickly and effectively absorb moisture in sealed packages, chemical properties are stable, non-toxic and harmless; in recent years, with continuous innovation and development, various silica gels are also widely used in drug purification, DNA. Separation, food drying, high-precision electronics, advanced cosmetics, sewage purification, beer purification, advanced coatings, resin production or storage. It is suitable for producing high-transparent nipples and other baby products, daily necessities, silicone toothbrushes, dental gels, goggles and other casual products.