Polyvinyl chloride is a chlorine atom using a polymer material such as polyethylene in a hydrogen atom. The structure of this material are as follows: [-CH2 -CHCl-] n. Carbon atoms arranged in a zigzag pvc pipe manufacturer, all the atoms are σ bond linked. All the carbon atoms are sp3 hybrid green and low consumption of plastic pipe formulation design, PVC plastic pipe to certain principles formula design. PVC macromolecular structure exist in the head structure unstable structure, branched chain, a double bond, allyl chloride, tert-chloride and the like, so that the thermal deformation resistance and poor aging drawbacks. After pretending to be cross-linked chemical pvc pipe, you can eliminate this class disadvantage. PVC conventional identification methods are generally grouped into three categories, namely: identification (1) combustion method: the softening or melting temperature range: 75 ~ 90 ° C; combustion: self-extinguishing after ignition; combustion flame status: under the yellow green smoke ; from the fire situation: from the fire extinguished; Odor: pungent smell. This method is the easiest and most direct, generally preferred. (2) solvent treatment Identification: Solvent: tetrahydrofuran, cyclohexanone, methyl ketone, dimethylformamide; non-solvent: methanol pvc pipe, pvc pipe brand acetone, heptane. Suspected PVC plastic is added by the above solvent, dissolution was observed to determine whether the plastic PVC. The solvent was heated to dissolve the effect will be more obvious. (3) the proportion of law: PVC specific gravity of 1.35 to 1.45, usually about 1.38. By gravity method for determining the proportion of the difference or distinction between PVC and other plastics. PVC composition structure character as a slightly yellow translucent and shiny. Transparency better than polyethylene, polypropylene, polystyrene poor, with the additive, divided into soft and hard PVC, soft products soft and tough, feel sticky, hard ware harder than low-density polyethylene, but lower than polypropylene, will appear at the inflection bleaching. Common products: plates, pipes, shoe soles, toys, doors and windows, wire jacket, stationery, packaging boxes. pvc pipe | sea Widex (Online) | pvc pipe provided by the Qingdao Rubber Material Co., Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is in Qingdao, Shandong, 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 the sea benefits of a better future.