New Breakthrough in CPVC (Chlorinated Polyvinyl Chloride) Extrusion Process

CPVC's superior heat resistance, flame resistance (less smoke) and good rigidity make its application area more and more extensive, and its market potential is becoming increasingly inestimable. However, the extrusion processing of CPVC is difficult to make, and a large amount of Hcl gas released due to improper process control may cause severe corrosion of processing equipment and molds. In order to make CPVC have similar PVC processability, Changzhou Zhuocheng Plastic Co., Ltd. has done a lot of research and development work. The scientific and technical personnel headed by Zhang Xiaowen have successfully developed a CPVC pipe material similar to the PVC processing technology. Its Vicat softens. The point is not lower than 110°C, and its heat resistance is 30-40°C higher than UPVC and 15-25°C higher than ABS. Its aging resistance and chemical resistance are much higher than those of ABS and UPVC. The toughness and impact resistance of the material are not less than UPVC is poor, its flat test can be pressed to 0, and can be processed into flexible sealing flare like UPVC pipe, changing the previous CPVC pipe can only be connected by adhesive bonding, making its application more widely. This is a major breakthrough in the current CPVC extrusion process. It will guide the domestic plastic pipe industry into the new material field of CPVC.