Shanghai plastic raw materials wholesale sales agents

1 properties of the plastic, the plastic with plasticity as the name implies, a plastic material that can be molded. The so-called plastic plasticity is the ability to make solid by a method of heating the plastic to soften, then put soften plastic in a mold, let it cool and then re-solidified into a certain shape of solids. Plastic of this nature also has some shortcomings, easy to soften the deformation that is exposed to heat, and some plastics even with higher temperature water hot look will be deformed, so plastic products generally should not be touching water. 2, plastic elastic fibers, like some plastics, like, have a certain flexibility. When it is subjected to external forces stretching, curling molecules have been straightened by the flexibility, but once the rally canceled, it will restore the original state of the curl, so that makes flexible plastic such as polyethylene and polyvinyl chloride film products. But some plastics are not elastic. 3, the plastic has a high strength plastic, although not as hard metal, but compared with glass, ceramics, wood, etc., or have a relatively high strength and wear resistance. Sturdy plastic can be made on a machine gears and bearings. 4, plastic corrosion resistant plastic not like metal, as in the moist air will rust, unlike wood, as in a humid environment will decay or microbial corrosion, additional plastic acid corrosion. So plastic is often used as chemical plants and water Pipeline, doors and windows of buildings and so on. 5, the molecular chains having a plastic insulating plastic is covalently bound atoms together, neither ionized molecules, or electrons can not pass in the structure, so that an insulating plastic. Plastic used to manufacture of a wire, electrical outlets, electrical appliances, such as Shell.