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International Rubber and Plastics Exhibition

"CHINAPLAS International Rubber and Plastics Exhibition" started in 1983, has developed into the largest rubber and plastics industry exhibition in Asia, and the industry is more recognized that its influence is second only to Germany's "K exhibition", becoming one of the world's top exhibitions in the rubber and plastics industry.

Plasticizing is a process in which a polymer is mixed with a solid object and softened by heat into a viscous fluid state. This process allows the polymer to have better processing properties, so it is widely used in the manufacture of various plastic products.

  At present, the rolling molding are mainly PVC products, mainly soft PVC film and hard PVC sheet two kinds. Here, the production of PVC film is taken as an example to describe a complete rolling molding process. The rolling molding process of PVC film is based on PVC resin as the main raw material, according to the different requirements of the use of the film product, the other auxiliary materials (plasticizer, stabilizer, filler and other auxiliary materials) according to the different proportion of the formula, by measurement and mixing, added to the PVC resin. It is mixed evenly by the high-speed mixer, mixed and pre-plasticized by the mixer, extruder or open mixer, and then transported to the calender for calendering and forming. The production process is then shaped by cooling rollers.

  Calendering is a processing method for thin sheet products with width and thickness by means of strong shear force between rollers and corresponding processing temperature, so that the viscous fluid material is repeatedly extruded and extended. Plastic and rubber are calendering process, plastic with polyvinyl chloride resin as the main raw material.