For hard PVC plastic material, there exists a disadvantage of poor impact resistance, is often used to add ACR, CPE, EVA, MBS, etc. modified to improve 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 merger integration and capital operation is becoming more frequent rigid pvc plastic prices, more and more attention to the domestic producers of plastic profiles of outstanding research on the industry market, especially for enterprise development environment and depth study of changes in customer demand trends. Because of this, a large number of outstanding domestic brands of plastic profiles rapid rise, has become the industry leader in plastic profiles! PVC melt temperature during processing is a very important process parameters Qingdao rigid pvc plastic, if this argument would lead to inappropriate material decomposition problem. Very poor flow characteristics of PVC rigid pvc plastic sheet, the process is very narrow range. Especially high molecular weight PVC material more difficult to process (this material is usually added to improve the flow characteristics of lubricant), it is often used are low molecular weight PVC material. PVC contraction rate is very low, typically 0.2 to 0.6%. Softening point close to the decomposition temperature of the polyvinyl chloride resin. It has begun to decompose at 140 ℃, the decomposition at 170 ℃ when more quickly. In order to ensure the normal molding process, PVC resin provides for the two most important process indicators, namely the decomposition temperature and heat stability. The so-called decomposition temperature is the temperature when a large number of release hydrogen chloride, the so-called heat stability is at a certain temperature conditions (typically 190 ℃) is not a lot of time to release hydrogen chloride. PVC under long-term exposure to 100 ℃ rigid pvc plastic, unless the addition of an alkaline stabilizer, or will decompose, if it exceeds 180 ℃ the rapid decomposition. Shandong rigid pvc plastic _ sea Widex (certified) _ rigid pvc plastic provided by Qingdao Rubber Material Co., Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is Qingdao, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Widex leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea Widex a better future.