Acrylic resin is a copolymer composed of methacrylate, acrylate and vinyl monomers. Compared with other synthetic polymer resin materials, acrylic resin materials have very obvious advantages, such as light resistance, weather resistance, and durability. Resistance, heat resistance, etc., will not change color at 230 ℃, and has good acid and alkali corrosion resistance. It is more and more widely used in automobiles, home appliances, construction, and plastic products. Combining different resin structures and production processes, acrylic numerical coatings can be divided into several different types.

The relationship between acrylic resin structure and performance

One aspect is stability, including UV resistance, acid and alkali resistance, and chemical resistance. Because of the presence of a-H, acrylic esters have lower oxidation resistance and UV resistance than methacrylate resins. Acrylic resin has C-C bond as the main chain, which has very good oxidation resistance, acid and alkali resistance and hydrolysis resistance. On the other hand, it is mechanical properties. The mechanical properties of acrylic resins include extensibility, hardness, toughness, etc. These properties are largely affected by the density of the polymer molecular structure. With the growth of the side chain, the tensile strength and hardness of the acrylic resin will be significantly reduced, and the elongation and flexibility will be significantly increased. Polymethacrylate has a methyl group at the a-position, which limits the rotation of the C-C main chain. There is no α-methyl in polyacrylate, and each chain can rotate around the main chain. This is the reason why polymethacrylate has good hardness and tensile strength, and its softness and extensibility are worse than polyacrylate. .

Having introduced so much, I believe everyone has a certain understanding of silane coupling agents. If you want to know more about silane coupling agents, please contact Heshan KBORON New Material Co., Ltd.

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