For hard PVC plastic profiles, the existence of the shortcomings of poor impact resistance of plastic PVC profile material, often used to add ACR, CPE, EVA, MBS and other modified to improve the impact strength. CPE (chlorinated polyethylene), EVA (ethylene - vinyl acetate copolymer), ACR (acrylic resin), MBS (methyl methacrylate - butadiene - styrene graft copolymer) is generally added in an amount of 6% to 10 %. Growing competition in the industry of plastic profiles, plastic profiles large corporate merger integration and capital operation is becoming more frequent, more and more attention to the domestic producers of plastic profiles of outstanding research on the industry market, especially for enterprise development environment and changes in customer demand trends in-depth study. Because of this, a large number of outstanding domestic brands of plastic profiles rapid rise, has become the industry leader in plastic profiles! Importing their vinyl chloride monomer in the main chain copolymerization supply plastic PVC profile, resulting including two monomers Novel polymer chain links, this polymer is called a copolymer. Currently copolymers of vinyl chloride with other monomers the main varieties and properties as follows: ⑴ vinyl chloride - vinyl acetate copolymer: introducing vinyl acetate monomer may function as general plasticizer, i.e. plasticized so-called "inner "volatile plasticizer can be avoided in general, migration, extraction and other shortcomings of plastic PVC profile wholesale, can also reduce the melt viscosity, lower processing temperature, improve processing performance. Usually the copolymer of vinyl acetate content of 3 to 14%. Vinyl chloride - vinyl acetate copolymer main disadvantage is that the tensile strength, heat distortion temperature, abrasion resistance, chemical stability and thermal stability decreased. ⑵ vinyl chloride - vinylidene chloride copolymer: the plasticization of the plasticized vinyl chloride copolymer of this softening temperature, solubility and molecular - vinyl acetate copolymer is substantially the same. Its biggest feature is the small water and gas permeability, high solubility in a ketone solvent, and the ability of the dilution effect of aromatics, which can be effectively used for coating. In addition, also used to make shrink films. Due to heat, light stability than the vinyl chloride - vinyl acetate copolymer difference, the higher cost of monomer, so there is no chloride in the application - vinyl acetate widely. Plastic PVC profile material | plastic PVC profile | sea Widex Widex provided by Qingdao Rubber Material Co., Ltd. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) strong, credible, in Qingdao, Shandong industrial products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the sea Widex and you work into the brilliant, for a better future!