The Principle And Performance Of Silicone Products


    The processed works with silica gel as the main raw material are all called silica gel products. Silica gel is a porous material with different particle sizes formed by proper dehydration of silicic acid gel. It has an open porous structure and can adsorb many substances. It is a good desiccant, adsorbent and catalyst carrier. The adsorption of silica gel is mainly physical adsorption, which can be regenerated and used repeatedly. Add acid to the alkali metal silicate (such as sodium silicate) solution to make it acidify, and then add a certain amount of electrolyte to stir to form a silicic acid gel; or add acid or Ammonium salts can also generate silica gel. Let the silicic acid gel stand for a few hours to age it, then wash it with hot water to remove the soluble salts, dry it at 60-70℃ and activate it at about 300℃ to obtain silica gel. The silicic acid gel is soaked in a cobalt chloride solution and then dried and activated to obtain a color-changing silica gel.
    Food-grade silica gel is non-toxic, tasteless, insoluble in water and any solvent, and is a highly active green product. Food-grade silica gel has inherent thermal stability (-40℃-230℃). It is suitable for different occasions. The product has good flexibility and meets different needs.

    High temperature resistance: applicable temperature range -40 to 230 degrees Celsius, can be used in microwave and oven.

    Easy to clean: The silicone products produced by silica gel can be cleaned after being rinsed in clean water, and can also be cleaned in the dishwasher.

    Long life: The chemical properties of silica gel are very stable, and the products made have a longer life than other materials.

    Soft and comfortable: Thanks to the softness of the silicone material, the cake mold products are comfortable to the touch, very flexible and not deformed.

    Variety of colors: According to the needs of customers, different beautiful colors can be deployed.

    Environmental protection and non-toxic: no toxic and hazardous substances are produced from the raw materials entering the factory to the finished product shipment.

    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 is used for high-voltage corona discharge and arc discharge
    It has good resistance, such as high-voltage insulators, high-voltage caps for TV sets, electrical parts, etc.

    Low temperature resistance: The minimum temperature critical point of ordinary rubber is -20°C to -30°C, but silicone rubber still has good elasticity from -60°C to -70°C, and some specially formulated silicone rubber can withstand Very low temperature, such as low temperature sealing ring, etc.

    Conductivity: When conductive fillers (such as carbon black) are added, silicone rubber has good conductivity, such as keyboard conductive contact points, heating element parts, antistatic parts, high-voltage cable shields, medical physiotherapy conductive films, etc.

    Weather resistance: Ordinary rubber is rapidly degraded under the action of ozone generated by corona discharge, while silicone rubber is not affected by ozone, and its physical properties have only slight changes under ultraviolet light and other weather conditions for a long time, such as outdoor use Sealing materials, etc.

    Thermal conductivity: When certain thermal conductive fillers are added, silicone rubber has good thermal conductivity, such as heat sinks, thermally conductive gaskets, photocopiers, fax machine thermal rollers, etc.

    Radiation resistance: The radiation resistance of silicone rubber containing phenyl groups is greatly improved, such as electrically insulated cables and connectors for nuclear power plants.

    Silicones are true cosmetic chemicals and are used in personal care applications. They make creams and lotions smooth. In shampoos, silicones can make hair softer and easier to comb. Our products include silicone formulations, silicone emulsions and surfactants. Silway is a professional manufacturer and supplier of     cosmetic silicones    and    Polyether modified silicone oil   . There are many kinds of products, welcome to buy.