PVC plastic pipe price | Sea Widex (certified) | PVC plastic pipe provided by Qingdao Rubber Material Co., Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is specialized in "PVC profiles, seals, ABS extrusion profiles, PVC raw material" of the enterprise, the company of "honesty, hard service" concept, for You provide the most quality products and services. Welcome to inquire! Contact: Zhao Shuang. PVC, the abbreviation PVC (Polyvinyl chloride polymer = PVC molecular structure), is formed by the polymerization of vinyl chloride in the role of initiator of the thermoplastic resin. Is a homopolymer of vinyl chloride. Homopolymers and copolymers of vinyl chloride system called vinyl chloride resin. PVC as a white amorphous powder PVC plastic pipe, a smaller degree of branching. Industrial production of PVC molecular weight generally in the range of 50,000 to 120,000 PVC plastic pipe prices, having a large polydispersity, molecular weight increases with lowering the polymerization temperature; no fixed melting point, 80 ~ 85 ℃ begins to soften, 130 ℃ change for viscoelastic state, 160 ~ 180 ℃ into a viscous flow state begins; good mechanical properties, tensile strength of about 60MPa, the impact strength of 5 ~ 10kJ / m2; has excellent dielectric properties. However, poor stability to light and heat of PVC plastic pipe fittings, at above 100 ℃ or after prolonged exposure to sunlight, it will decompose to generate hydrogen chloride, and further autocatalytic decomposition, cause discoloration, physical and mechanical properties is also decreased rapidly, in practice stabilizer must be added to increase the heat and light stability. PVC rigid PVC sheet material and adding stabilizers, lubricants and fillers, after mixing, extrusion machine can be extruded rigid tube of various calibres, shaped tubes, bellows-shaped plastic PVC pipe, used for water pipes, water pipe, wire casing or stair handrail. Good hot rolled sheet will overlap, can be made of rigid plates of various thickness. Sheet can be cut into the desired shape, and then use PVC welding with hot air welded into a variety of chemical resistant tanks, ducts and vessels. Generally soft PVC products can be extruded by an extruder hoses, cables, wires, etc; the use of an injection molding machine with a variety of molds can be made of plastic sandals, shoes, slippers, toys, automotive accessories.