What is a transparent raincoat
Polycarbonate plastics (PC): Polycarbonate (PC) is a molecular chain containing carbonate based polymer, according to the structure of the ester group can be divided into aliphatic, aromatic, aliphatic aromatic and other types. Due to the low mechanical properties of aliphatic and aliphatic aromatic polycarbonate, the application in engineering plastics is limited. At present, only aromatic polycarbonate has been industrialized. Due to the particularity of the polycarbonate structure, has now become the five largest engineering plastics in the fastest growing general engineering plastics.
Polyamide plastic (PA): PA plastic is a U.S. company first developed for fiber resin, in 1939 to achieve industrialization. 1950s began the development and production of injection molding products to replace the metal to meet the requirements of downstream industrial products lightweight, reduce costs. PA has good comprehensive properties, including mechanical properties, heat resistance, abrasion resistance, chemical resistance and self lubrication, low friction coefficient, flame retardancy, some easy processing, suitable for filling reinforced with glass fiber and other fillers, improve the performance and expand the scope of application.
Polyvinyl chloride (PVC): polyvinyl chloride (PVC) is made of vinyl chloride monomer. Its commodity name referred to as "chlorine plastic", English abbreviation for PVC. Pure polyvinyl chloride resin is a hard thermoplastic material, its decomposition temperature is very close to the plasticizing temperature, and the mechanical strength is poor. Therefore, not to use plastic products of PVC resin, must be added plasticizer, stabilizer, filler to improve the performance, made of PVC plastic, and then processed into various products. Polyvinyl chloride (PVC), based on the amount of added plasticizer, is divided into rigid polyvinyl chloride (PVC) and flexible polyvinyl chloride (PVC).
PVC material is a thin EVA material was introduced into China in 1970, due to the quality of soft and easy to transport, safety performance and excellent waterproof, anti fading characteristics are widely used in light industry. EVA material non-toxic, harmless, soft, waterproof, non fading, with flexibility, is the most modern safe, convenient, high-quality light industrial raw materials. The utility model can be used in children's products, and can ensure that children can enjoy playing without any harm. The utility model avoids the defects that the traditional toy tip is hard and easy to hurt, and the paint surface is easy to be poisoned, and the block is easy to loose.
