silane coupling agent products
There are generally three methods for the application of silane coupling agents:
One is a surface treatment agent as a skeleton material; the other is added to the binder, and the third is directly added to the polymer material. The first two methods are better from the perspective of giving full play to their effectiveness and reducing costs.
The application of silane coupling agents can be roughly summarized into three aspects:
1. It is used for the surface treatment of glass fiber, which can improve the bonding performance of glass fiber and resin, and greatly improve the strength, electrical, water resistance and weather resistance of glass fiber reinforced composite materials. Even in the wet state, it is compounded. The mechanical properties of the material are improved and the effect is also remarkable. At present, the use of silane coupling agents in glass fibers has become quite common. The silane coupling agent used in this aspect accounts for about 50% of the total consumption, and the most used varieties are vinyl silane, amino silane, Methacryloxysilane or the like.
2. It is used to fill plastic with inorganic filler. The filler may be surface treated in advance or added directly to the resin. It can improve the dispersibility and adhesion of the filler in the resin, improve the process performance and improve the mechanical, electrical and weather resistance properties of the filled plastics (including rubber).
3. used as a tackifier for sealants, adhesives and coatings, can improve their bonding strength, water resistance, weather resistance and other properties. Silane coupling agents often solve the problem that certain materials have not been able to bond for a long time.
Silicones that are fully absorbed by organisms are widely found in plants, such as wheat, oats and other cereals. So far, scientists have found that the highest content is verbena (Equisetumarvense). The high-purity liquid bioabsorbable organic silicon extraction technology has so far only been mastered by some developed countries such as France.
Silicone oil is a polyorganosiloxane of different degree of polymerization chain structure. The most commonly used silicone oil is methyl silicone oil. Silicone oils are generally colorless (or light yellow), odorless, non-toxic, non-volatile liquids. Silicone oil is insoluble in water, methanol, glycol and - ethoxyethanol. It is miscible with benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene. It is slightly soluble in acetone, dioxane, ethanol and alcohol. . It has a small vapor pressure, a high flash point and a flash point, and a low freezing point. As the number of segments n differs, the molecular weight increases and the viscosity increases, so that the silicone oil can have various viscosities. Silicone oil is divided into methyl silicone oil, ethyl silicone oil, phenyl silicone oil, methyl hydrogen silicone oil, methyl phenyl silicone oil, methyl chlorophenyl silicone oil, methyl ethoxy silicone oil, methyl trifluoropropyl according to chemical structure. Base silicone oil, methyl vinyl silicone oil, methyl hydroxy silicone oil, ethyl hydrogen silicone oil, hydroxyl hydrogen silicone oil, cyanide-containing silicone oil, etc.; from the use, there are damping silicone oil, diffusion pump silicone oil, hydraulic oil, insulating oil, Heat transfer oil, brake oil, etc. Silicone oil has excellent heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertness and small surface tension. In addition, it has a low viscosity temperature coefficient and high compression resistance. Some varieties also have radiation resistance. Performance.