What is the silicone products, what are the purposes
Have a lot of friends are asking, what is the silicone products, what's the use of silicone products, mainly used in those places, today for everyone read once again the source of silica gel products, the so-called silicone products is silica gel as the main raw material processing system, usually referred to as the silicone products.
Silica gel is composed of silicate gel dehydration appropriate particle size different porous material.
Are mainly of fine silica a coarse silica gel, have an open porous structure, it is because have such hole structure, and can adsorb many materials, is a kind of very good desiccant, adsorbent and catalyst carrier.
Silica gel adsorption is mainly physical adsorption, can be recycled and repeatedly used.
So the silicone products is a kind of environmentally friendly products, in the alkali metal silicate (
Such as sodium silicate)
Add acid solution, acidification, stir and add a certain amount of electrolyte, namely generate silicate gel;
Or in the concentration of sodium silicate solution adding acid or ammonium salt can also generate silicate gel.
Mainly under the strong acid alkali electrolysis to obtain silica gel, silica gel is stand for a few hours of aging, then wash with hot water soluble salts, under 60 ~ 70 ℃ drying and activation when at about 300 ℃, can get the silicone.
Silica gel is transparent gelatinous material, silica gel with cobalt chloride solution after soaking and drying and activation, available color silica gel.
And food grade silicone production process will be more careful, general food grade silica gel mainly produce some contact food utensils.
Food-grade silicone non-toxic tasteless, insoluble in water and any solvents, green product is a highly active.
Food grade silica gel has inherent thermal stability (
Suitable for various occasions.
Product has good flexibility, meet different needs, in Japan or the European and American countries, with food-grade silicone production of silicone kitchen utensils and appliances is most common, in addition to the silicone kitchen utensils and appliances, also more silicone bib, silicone, silicone nipple bottles and so on.
These are a small class of silicone products.
Silicone products also can be used as electronic accessories mainly making copiers, keyboard, electronic dictionary, remote controls, toys, such as silicone buttons indispensable part.
Is the most common type of remote control buttons, have been applied to each family.
Can also be used to make durable shaped shaped gasket, electronic accessories materials for the maintenance of packaging materials, automotive electronic accessories.
Used in house construction and repair, highway joint seal, seal and seal of the bridge engineering, the application of the wear-resistant and heat-resistant characteristics of silica gel.
Used in medical equipment accessories, such as silica gel colorless, tasteless non-toxic characteristics are widely used in medical industry, mainly USES the medical grade silicone raw material to produce.