What are the properties of silicone resins? Silicone resin is the modern industrial manufacturing of new materials, and all countries in the world to the development of a material, organic silicon resin is widely applied in the field of cutting-edge, is one of the main raw material, at the same time, it is applied in our daily life is very wide, thanks to its nature, so organic silicon resin has the nature of how? Let's take you to know about it.
Characteristics of silicone resins
1, heat-resistant
General anticorrosion coating paint high temperature resistance of about 150℃, and silicone material paint can be long-term application in 200℃. If the addition of high temperature pigment, high temperature resistance to 400℃~500℃, unique can also do 800℃~900℃. Therefore, it is suitable for coating heat-resistant components.
2, electrical equipment characteristics and hate water number
Because the surface layer of the molecular structure of silicone paint has a layer of non-polar organic chemical genes and molecular structure symmetry, which becomes the basis of its excellent insulation characteristics and hydrophobic. At the level of dielectric strength, not only the grounding resistance is high, but also the penetration strength and the resistance to high piezoelectric isolated spark discharge are mainly quality characteristics, so the prepreg motor and the components with high dielectric strength can be used to improve the flame retardant grade of insulating layer components.
3, surface activity is large, small supporting force
Because polysiloxane is a symmetric molecular structure and its functional groups are nonpolar organic chemical groups, the entire chemical formula is nonpolar. The interaction between small molecular structure, molecular structure of its own cohesive force is small, so small interfacial tension, when its diversification in interfacial tension when a lot of material surface, can go to the material separation, and because of its molecular structure and material of the contact force is small, so it can reduce the interfacial tension of the material, it is not easy to produce foam. This is the reason that methyl silicone oil can be used to break the emulsion effect in the paint, so that it can be used as an organosilicon defoaming agent and leveling agent in the paint to avoid the shiny, black spots, etc., and the amount of use is 0.2% to 0.3%.
4, good cold resistance
Because of the structure of organic silicon paint biomolecule itself, the middle temptation of molecular structure is poor, so it has excellent cold resistance. The cold resistance of pure silicone material is about -50℃, while the silicone paint W31-1 of polyester modified material can withstand the following temperature of -80℃. Therefore, this paint can be used in colder areas.
5, excellent chemical resistance
Because of the presence of aldehyde group in silicone paint, the original excellent resistance to chemicals. For instance lacquer layer is immersed in 2% glacial acetic acid: 10% sulfuric acid, 10% cyanide sodium, 10% hydrochloric acid, 10% hydroxide sodium, 10% nitride sodium or butanol, gasoline, classics 100h hind, lacquer layer still is excellent.
6, good mildew removal
Because the silicone material paint does not contain oil components, so aspergillus flavus can not survive in the silicone material paint layer, so that the silicone material paint has good mildew removal characteristics, suitable for coating on the components specified by the unique mildew removal.
The above is a few special properties of silicone resin, the development and research of silicone resin is essential, especially the application of silicone resin materials in the field of aerospace, more explains the importance of silicone resin materials.

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