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PVC is one of the five thermoplastic GE Plastics has a wide range of applications in various fields . PVC products are divided into both hardware and software products , soft products mainly film , cable sheathing, leather and other products . Hardware products, pipe, plate, extrusions, injection molded parts and other products . With economic development , PVC hard products has been more rapid development. PVC , however , must be in the production of hardware products be modified to meet the requirements of the application , especially PVC profiles . The world of PVC resin modified has a wide range of PVC to mixed modifier , such as CPE, ACR, MBS, ABS is the most widely used . PVC molecular chain graft polymerization modification effect . The former is a physical modification process simple, but inefficient , and graft - modified high efficiency , good effect, but the process is complex . Recent years the use of nanoparticles ( flexible or rigid ) has become a hot spot for polymer modified . Polyacrylic resin produced by using emulsion polymerization method by adding , in the polymerization of PVC in order to achieve microscopic modified to achieve the purpose of the PVC resin-modified . To improve the performance of resin impact test, the ratio of the various components on the the ACR particle size and preparation ACR process , in-depth study . Practice has proved that : the adoption of appropriate modifier ACR PVC situ polymerization modified PVC , it is possible to improve the impact resistance of products , the developed resin processing and excellent application performance . By situ polymerization ACR modified PVC is the first case in the country , to improve the technical level of the PVC industry has an important role .
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