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Vertical injection molding machine of the molding plastic: pp, PE, PC respectively represent?

by:Hisson     2020-07-23
With the rapid development of machinery industry, vertical injection molding machine is ubiquitous in the field and then in our daily use of vertical injection molding machine molding plastic pp, PE, PC respectively represent? Next followed us down a know. Standard vertical injection molding machine, disc vertical injection molding machine is suitable for the general plastics and engineering plastics, and provide a variety of injection molding production process maturity. PP, PE, PC is the abbreviation of plastic goods name in English, especially in polypropylene, polyethylene, polyvinyl chloride (PVC). 1. PP- - - - - - - - - - - - - Polypropylene application: auto parts, the type of card buckle, microwave tableware, POTS, buckets, thermos bottle shell, woven bags, etc. Features: high chemical stability, health, good performance, high heat resistance. The microwave tableware can choose mark wording, PP plastic products. Toxicity: non-toxic, harmless to the human body. There are three kinds of the polymer can be three-dimensional structure: the isotactic and syndiotactic, atactic polypropylene, the former two can crystallize, the latter could not. The basic structure of fine gauge, selling products of polypropylene melting point is 164 - - - - - - - Part 170 degrees Celsius, crystallization density 0. 935 grams/cubic centimeter, the clean part 0. 851 grams per cubic centimeter. PP is the chief drawback of easy oxidation ageing. Now with adding antioxidant and uv absorber and overcome them. 2. PE- - - - - - - - - - - - - Application: PE cling film, vest bags, plastic bags, bottles, pail, kettle, etc. Features: PE is more soft, feels a waxy, compared with the same plastic lighter quality, has a certain transparency, combustion flame is blue. Toxicity: non-toxic, harmless to the human body. High density polyethylene ( HDPE) , the density of 0. 945-0. 96 grams/cubic centimeter, melting point of 125 ~ 137 degrees Celsius; Linear low density PE ( LLDPE) , the density of 0. 925 grams/cubic centimeter, melting point of 120 ~ 125 degrees Celsius; High pressure low density PE ( HP- LDPE) , the density of 0. 918 grams/cubic centimeter, melting point of 105 ~ 115 degrees Celsius. 3. PC - - - - - - - - - - - - - Polycarbonate application: cups, tableware, kettle, cold water bottles, baby bottles and microwave containers, sports equipment. Features: PC transparent bottle, resistant to high temperature and corrosion liquid washing are available, and can be recycled. Toxicity: odourless non-toxic, but with the material the tableware of holding water and oil, will release methane phenol, after the body to absorb, can disrupt endocrine. Finally, pointed out that bisphenol A polycarbonate vertical injection molding machine manufacturer. Melting point of 270 degrees Celsius, density 1. 2 g/cm3, soluble in dichloromethane, dichloroethane, chlorobenzene, insoluble in water, alcohol, etc.
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