PVC plastics are synthesized by acetylene gas and hydrogen chloride, and then polymerized. In the early 1950s, based on the production of calcium carbide acetylene, then turned to the late 1950s, abundant raw materials, low-cost method of ethylene oxide; the world for more than 80% of the PVC resin is produced by this method. But by 2003, the result of soaring oil prices direct PVC plastic plate, but the cost of calcium carbide acetylene lower than about 10% ethylene oxide method, so PVC synthetic process turned the acetylene carbide method. PVC for most inorganic acids and bases are stable, heat is not dissolved but is divided interpreted hydrogen chloride. Azeotroped with potassium hydroxide to obtain a brown insoluble unsaturated products. PVC solubility and molecular size and polymerization methods. Generally the solubility of the polymer with increasing molecular weight decreases the price of PVC plastic sheet, the solubility of the resin emulsion method than the difference in the resin suspension. It can be dissolved in ketones (such as methyl hexyl ketone, cyclohexanone), aromatic solvents (e.g. toluene, xylene), dimethylformamide, tetrahydrofuran. Polyvinyl chloride resin at room temperature is almost insoluble plasticizer, significant swelling at high temperatures, even to dissolve. PVC material is not easily flammable, high strength, resistance to climate variability and excellent geometric stability. PVC oxidant, reductant and acid has a very strong resistance. However, it can be concentrated oxidizing acids such as sulfuric acid, concentrated nitric acid corrosion and does not apply to contact with aromatic hydrocarbons, chlorinated hydrocarbons occasions. PVC plastic board manufacturers, sea Widex (certified), PVC plastic sheeting 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.