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Distinction between silicone and silicone rubber
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Silica gel and silicone rubber, although only one word, there is certainly a lot of similarities and differences. The differences between them
Qualitative distinction.
First, the distinction between the concept.
Silica gel, English Silica gel; Silica; alias: silicone rubber, silicone, silicone. Official name: silica gel, is a
A high active adsorption material, a non crystalline material, its molecular formula is mSiO2 nH2O; in addition, not with any hydrofluoric acid alkali
Where the material reacts, insoluble in water and any solvent, non-toxic, tasteless, chemical properties of stability. Various types of silica gel because of their system
Different kinds of porous structures are formed in different ways. Chemical composition and physical structure of silica gel, which determines that it has many other
It is difficult to replace the materials with high adsorption properties, good thermal stability, chemical stability and high mechanical strength.
Silicone rubber, which is composed of silicon and oxygen atoms in the main chain, and the silicon atom is usually connected with two organic groups. Ordinary
Silicone rubber is mainly composed of silicon oxide and a small amount of chain containing methyl vinyl composition. The introduction of phenyl silicone rubber, high and low temperature increase
The performance, the introduction of three fluorine and propyl cyano can improve the heat resistance of silicone rubber and oil resistance. Silicone rubber has good resistance to low temperature,
It is generally able to work at -55. After the introduction of phenyl, up to -73. The heat resistance of silicone rubber is also very prominent at 180.
Can work for a long time, slightly higher than 200 degrees could take weeks or longer is instantaneous elasticity, resistant to high temperature of over 300 degrees.
The permeability of silicone rubber is good, and the oxygen permeation rate is the highest in the synthetic polymer. In addition, silicone rubber also has physiological inertia,
Will not lead to the outstanding characteristics of coagulation, so the medical field is widely used.
Secondly, through the concept of them can be known, silica gel is containing silicone rubber. Silicone rubber is a branch of silica gel.
Silica gel can be divided into organic silica gel and inorganic silica gel. Silicone rubber is an inorganic silica gel.
In short, silica gel can be used in medical plastic surgery. Then, according to the "silicone" confusion of names, is a mixture of silica gel
Random nouns. Is a transliteration of the silicone, we usually say that he is "silicone".
This paper is from Shenzhen,, id=517?
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