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Apr 23, 2023
Organic polysiloxane combustion is composed of two parts: inorganic silicon oxygen chains and organic hydrocarbon chains; In addition, the relatively large Si-0-Si bond angle (145 °) and low bending force greatly promote the fluidity of the organic silicon chain and lower its glass transition temperature. Various organic synthetic resins have their own advantages and disadvantages, which happen to be the advantages of organic silicon polymers. Introducing organic silicon into organic synthetic resins, utilizing the advantages of organic silicon to improve the shortcomings of organic synthetic resins, and improving the performance of organic silicon and organic synthetic resins, is of great significance for the development of the organic silicon and organic synthetic resin industry. Therefore, how to utilize the advantages of organic silicon to improve the shortcomings of organic synthetic resins has become a hot and difficult research topic today.
The organic silicon structure contains Si-0 bonds, with a bond energy of up to 425kJ/mol, much greater than the c-c bond energy (345kJ/mol) and C-0 bond energy (35lkJ/mol), and the formation of double bonds between silicon and other atoms may also be difficult to occur. This results in organic silicon compounds having superior properties such as high and low temperature resistance, station pollution resistance, weather resistance, and oxidation resistance; The silicon atom is located at the center of the tetrahedron in the compound. According to the tetrahedral structure, the two methyl groups are perpendicular to the plane where the silicon is connected to the adjacent oxygen atoms of the two phases. In addition, Si The length of the C bond is long, so that the three hydrogens on the two non-polar methyl groups act like an open umbrella, making it highly hydrophobic;
The three hydrogen atoms on the methyl group occupy a larger space due to the rotation of the methyl group, increasing the distance between adjacent silica burning molecules. According to the principle of intermolecular force, the van der Waals force is inversely proportional to the sixth power of the distance between molecules, so the intermolecular force of oxysil is much weaker than that of the meridian like compounds, so its surface tension is smaller than that of light compounds with similar molar mass, resulting in the easy spread of oxysil on the interface. The oxysil institute can reduce the surface tension of the system (about 25 mN/m), and can promote the solution to penetrate through pores and enter the epidermis, This greatly increases the permeability of the polymerization system and has good breathability;
Silibase Silicone main products are Methyl MQ Silicone Resin Powder，MQ Methyl Silicone Resin Liquid，MQ Silicone Resin，MQ Silicone Resin Powder，Liquid MQ Silicone Resin ，Vinyl MQ Silicone Resin，Heat Resistance Silicone Resin.