Environmental Protection Of Silicone
🕙 2023-08-03 👆
Silica gel is a porous substance with different particle sizes, which is formed by proper dehydration of silicic acid gel. It has an open porous structure, can adsorb many substances, and is a good desiccant, adsorbent and catalyst carrier.
Silica gel is a granular, glassy, porous form of silica derived from the synthesis of sodium silicate. Silicone is hard and laborious; More solid than ordinary household gel-like gelatin and AGAR. It is a naturally occurring mineral that is refined and processed into either granular or beaded form. As a desiccant, it has an average pore size of 2.4 nanometres and has a strong affinity for water molecules. Food grade silicone is non-toxic and tasteless, insoluble in water and any solvent, and is a green product with high activity. Food grade silica gel has inherent thermal stability (-40℃-230℃). It is suitable for different occasions. The product has good softness to meet different needs.
Silicone raw materials are divided into: ordinary industrial silicone, food grade silicone, platinum grade silicone. Ordinary silica gel is used to make industrial accessories, etc., food grade silica gel makes daily necessities trinkets, etc., platinum silica gel makes high-performance silica gel products, platinum is a vulgarizing agent to strengthen the performance of various products as a catalyst. However, whether it is ordinary or food grade, it can make us feel safe to use, silicone is colorless and odorless, adding a variety of color glue mixing into a variety of bright colors mistakenly let us think that it is bright color toxic!
Characteristics of silica gel:
1. High temperature resistance: applicable temperature range -40 to 230 degrees Celsius, can be used in microwave and oven.
2. Easy to clean: The silicone products produced by silicone can be recovered by rinsing with water after use, and can also be cleaned in the dishwasher.
3. Long life: the chemical properties of silicone material are very stable, and the products made have a longer life than other materials.
4. Soft and comfortable: Thanks to the softness of silicone material, cake mold products feel comfortable, very flexible, no deformation.
5. Variety of colors: According to the needs of customers, different beautiful colors can be deployed.
6. Environmental protection and non-toxic: from raw materials into the factory to finished products are not produced any toxic and harmful substances.
7. Electrical insulation performance: silicone rubber has a high resistivity, and its resistance can remain stable in a wide temperature range and frequency range. At the same time, silica gel has good resistance to high voltage corona discharge and arc discharge, such as high voltage insulators, TV high voltage caps, electrical parts and so on.
8. Low temperature resistance: the minimum temperature critical point of ordinary rubber is -20 degrees to -30 degrees, but silicone rubber still has good elasticity when it is -60 degrees to -70 degrees, and some special formulas of silicone rubber can also withstand extremely low temperatures, such as low temperature seals.
9. Electrical conductivity: When adding conductive fillers (such as carbon black), silicone rubber has good electrical conductivity, such as keyboard conductive contact points, electric heating components, antistatic components, high voltage cable shielding, medical physiotherapy conductive film, etc.
10. Weather resistance: Ordinary rubber rapidly degrades under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone, and for a long time in ultraviolet light and other climatic conditions, its physical properties have only minor changes, such as outdoor use of sealing materials.
11. Thermal conductivity: When adding some thermal conductive fillers, silicone rubber has good thermal conductivity, such as heat sink, thermal sealing pad, photocopier, fax machine thermal roll, etc.
12. Radiation resistance: The radiation resistance of silicone rubber containing phenyl is greatly improved, such as electrically insulated cables, connectors for nuclear power plants, etc.
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