Silane coupling agentA172 is a vinyl silane with an ethylene containing an unsaturated double bond structure in its molecular structure base functional group and three hydrolyzable alkoxy groups – 2-methoxyethoxy. This dual reactivity allows them to pass through with inorganic materials (glass, metal, fillers) and organic polymers (thermosetting resins, plastics , elastomer) to improve the degree of combination, adhesion and compatibility between the two, thereby improving the mechanical properties of the resin-based composite material or improving the bonding strength and water resistance of the resin coating. In different applications, they can be used as coupling agents, adhesion promoters, cross-linking agents, surface modifiers for pigments and fillers, silicone-modified graft comonomers, etc. 
Main applications
Silane coupling agent A172 is a bifunctional molecule that can react with both inorganic fillers and organic polymers .
Can be used as an active agent for a variety of minerals such as aluminum hydroxide, magnesium hydroxide, kaolin, silica and other filled polymers to improve their mechanical properties And electrical properties, this effect can improve the compatibility of fillers and polymers, thereby making the dispersion better and fundamentally solving the problem of uneven filler dispersion.
Active halogen-free flame retardants made from modified aluminum hydroxide and magnesium hydroxide have been widely used in: wires, cables, electrical switches, engineering Flame retardant of plastics, decorative materials, coatings and fabrics.
In the manufacturing of wires and cables, the use of this product to treat fillers (aluminum hydroxide, magnesium hydroxide, quartz, titanium dioxide, etc.) of cross-linked polyethylene composites can improve The physical properties of the filler and the protection of the interface from moisture erosion; it can increase the filling proportion of the filler and reduce the cost; it can double the tensile strength; the dielectric constant increases by 10 times.
This product is also used in high-voltage cable formulations of ethylene-propylene copolymer and isopropylene terpolymer to treat talc, quartz, and fillers. It can improve the electrical and mechanical properties of the cable insulation layer. It has the advantages of shortened mixing time, rapid extrusion, and improved mold consumption. Adding this product to cross-linked polyethylene and modified polypropylene can improve the adhesion of these polymers to the surface of inorganic fillers.
This product can also be used to improve the adhesion of acrylic coatings to inorganic surfaces.
Silane coupling agentThe 2-methoxyethoxy group of A172 has a larger molecular weight than the methoxy and ethoxy groups. The boiling point of this product reaches 285°C, which is much higher than other vinyl silanes. This ensures that the filler surface modification of silane coupling agent A-172 will not be lost too much during rubber and plastic processing, making it more suitable for the above purposes. . At the same time, the larger alkoxy structure also makes the hydrolysis speed of this product slower and the stability better. However, 2-methoxyethanol, a by-product released after hydrolysis of this product, is considered to have certain biological teratogenicity, and ventilation should be strengthened when using it.
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