Acrylate resist modifier (ACR) is widely used in the production of PVC plastics and with excellent performance, which plays an important role in improving the quality and level of such chemical building materials.If used for PVC door and window profile, can improve the profile air tightness, water tightness and air pressure resistance, improve the aging life and color saturation; for pipeline production can improve the pipe toughness and pressure resistance, for the manufacture of high impact performance pipeline. The use of polymer coil improves its life and surface quality.
ACR resist modifier belongs to the core-shell structure copolymer, which mostly uses the step-by-step polymerization method of seed emulsion polymerization, including the traditional emulsion polymerization and nuclear shell emulsion polymerization. Its nucleus is a class of low-degree crosslinked acrylic ester polymers, and the shell is a methyl methacrylate grafted copolymer.The structure of the modified agent by adding typical cross-linked monomer, make the "core" has good elasticity ", shell" is a high glass temperature (Tg) high polymer, easy separation between particles, can be evenly dispersed into engineering plastic matrix and can interact with engineering plastic substrate, so such modifier can improve impact resistance, also can promote the engineering plastic gelation and plasticizing, improve the toughness of PVC products.
