Overview [1]


Methyl hydrogenated silicone oil is prone to cross-linking reaction due to a certain number of active Si-H bonds in the molecule. It can be used as a cross-linking agent for addition liquid silicone rubber under the catalysis of Pt catalyst. Hydrophobic films can be formed on the surfaces of various substances under the action of metal salts and catalysts and at lower temperatures. Si-H bond is easy to break under alkaline conditions. It can be seen from the structure that the biggest difference between hydrogen containing methyl silicone oil and the two silicone oils introduced earlier is that it contains hydrogen silicon structure in its silicon oxygen bond, and the Si-H bond is easy to break under alkaline conditions. Therefore, the alkali resistance of hydrogen containing methyl silicone oil is weaker than that of other silicone oils. The biggest difference between methyl hydrogenated silicone oil and other silicone oils. Familiar with methyl silicone oil, it can be seen that the hydrogen content is determined by the size of N in the molecular structure, because the terminal groups of general methyl silicone oil are the same.


Methyl low hydrogen silicone oil has low hydrogen content. The biggest advantage of methyl low hydrogen silicone oil is good waterproof effect. It can be crosslinked to form a film at low temperature under the action of metal salt catalysts, and can form a waterproof film on the surface of various substances. It can be used as waterproof agent for fabrics, glass, ceramics, paper, leather, metal, cement, marble and other materials. In particular, it is widely used in fabric waterproof. It is compatible with methyl hydroxyl silicone oil emulsion, which can not only waterproof, but also maintain the original permeability and softness of fabrics, and improve the tear strength, friction strength and antifouling property of fabrics. Besides, it can also be used as paper sticker and crosslinking agent and foaming agent for foam silicone rubber.


Apply [1]


Cn20141030335.5 provides a high temperature resistant silicone rubber, which is composed of 100 parts by mass of methyl vinyl silicone rubber raw rubber, 70-75 parts of polymetallic organosiloxane, 23-26 parts of alkoxy terminated polysiloxane, 5-6 parts of dimethyl diethyloxysilane, 20-22 parts of gas phase silica, 4-5 parts of hydroxyl silicone oil, 2-3 parts of methyl low hydrogen silicone oil, 6-8 parts of quartz powder, 1-2 parts of diatomite Barium silicate 1-2 parts, calcium stearate 0.20-0.30 parts; Wherein, the methyl vinyl silicone rubber raw rubber includes 68 ± 2 parts of methyl vinyl silicone rubber raw rubber with vinyl content of 0.07% - 0.09%, 32 ± 2 parts of methyl vinyl silicone rubber raw rubber with vinyl content of 0.15-0.17%, and their number average molecular weight is between 600000 and 620000. The silicone rubber of the invention has excellent heat resistance