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What is called a thermoplastic resin, and its prospects?

Date:2016-02-23
Resin products is specially used in the production of hot melt traffic paint, color shallow, yellowing resistance, good thermal stability characteristics. In typical traffic paint requirement construction temperature range, the resin flow have good viscosity stability and consistency, the coating adhesion, high hardness, good abrasion resistance and anti pollution etc, and don't cause pollution to the construction environment. Thermoplastic resin system in petroleum and chemical products as the main raw material, production. About 90% of the world total synthetic resin production. Commonly used thermoplastic resins: polyethylene, polypropylene, polyvinyl chloride, polystyrene, poly (methyl methacrylate, pet, polyoxymethylene, polyamide, polyphenylene oxide, etc. Thermoplastic resin according to the state of aggregation structure can be divided into the crystalline form, such as polyamide, and amorphous (e.g., poly (methyl methacrylate) two kinds. Due to grain refraction, crystalline form resin products transparency is poor, high melting point, molding shrinkage rate. Some kinds of plank light transmittance in amorphous resin can be comparable to those, inorganic glass processing contractility is also small. Add all kinds of plastic additives in thermoplastic resin, such as antioxidant, plasticizer, etc., as well as a variety of reinforced material, can be made into thermoplastic plastics. Some species, such as polyester, polyamide) additive with very little, pure resin can be directly processed; Some varieties, such as PVC) formula is extremely complex, formula is different, different performance. Thermoplastic processing methods such as extrusion, blow molding and injection molding. In the production of thermoplastic resin polymerization process, macromolecular chain for carbon chain generally use addition polymerization to preparing, macromolecular chain for heterochain polycondensation reaction is used for making. Thermoplastic resin is mainly used as thermoplastic plastics, also used as adhesives, coatings. Most of the synthetic fiber with resin belongs to thermoplastic resin. Thermoplastic resin production in the future will still account for most of the synthetic resin production. Chemical structure of new varieties will not increase too much, but there will be new and improved manufacturing process. For high temperature resistant, easy processing, high strength, or has some special functions, such as conductive thermoplastic resin is still the important direction.
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