Silicone can be divided into organic silica gel and inorganic silica gel according to its nature and components. What is the difference between organic silicone and inorganic silicone? The following Dongguan Bo Hao Electronics will take you to learn more about the two kinds of silica gel classification products. The
1. Organic silicone
Silicone rubber is a specialty rubber in synthetic rubber, which is divided into solid and liquid according to the form. The liquid vulcanization temperature is divided into room temperature vulcanization type and high temperature vulcanization type. The basic structural unit of organic silica gel products is composed of silicon-oxygen chain segments, and the side chains are connected to other various organic groups through silicon atoms. Therefore, in the structure of organic silicon products contains both "organic groups" and "inorganic structures". This special composition and molecular structure make it combine the characteristics of organic matter with the function of inorganic substances.
Temperature resistance, weather resistance, electrical insulation, physiological inertness, low surface tension and low surface energy.
The use of silicones:
Silicone has these excellent properties mentioned above, so its application range is very wide. It is not only used as a special material for aviation, cutting-edge technology and military technology departments, but also used in various sectors of the national economy. Its scope of application has been extended to: construction, electrical and electronic, textile, automotive, machinery, leather, paper, chemical light industry, Metals and paints, medicine and medical care.
2. Inorganic silica gel
Inorganic silica gel chemical formula xSio2·yH2O. Transparent or opalescent granular solids, which are highly active adsorbent materials, are usually amorphous machine finished products that are produced by the reaction of sodium silicate and sulfuric acid and subjected to a series of post-treatment processes such as aging and acid vesicles. It is washed or processed into minerals or beads by minerals found in nature. The main component of inorganic silica is silica, an amorphous machine made of sodium silicate and sulfuric acid in silica. Finished product. Inorganic silica gels are washed by the minerals found in nature and processed into pellets or beads.
The structure of inorganic silica gel is very much like a sponge body. The interconnected pores form a capillary pore adsorption system with a huge surface area, which can adsorb and store water vapor. At a humidity of 100%, it can absorb and condense moisture equivalent to 40% of its own weight. High adsorption performance, can adsorb a variety of substances. A dilute sulfuric acid (or hydrochloric acid) is added to an aqueous solution of water glass and allowed to stand, and it becomes a hydrous silicic acid gel, which is solidified, has good thermal stability, is chemically stable, and has high mechanical strength.
Inorganic silica gel has a wide selection of packaging materials, generally OPP/PE, PET/PE film, non-woven fabric, composite paper and so on. For gas drying, gas absorption, liquid dehydration, chromatographic analysis, etc., also used as a catalyst. Cobalt chloride, for example, is blue when dry and red after absorbing water.