The difference between polyvinyl chloride, polyethylene and crosslinked polyethylene
hangzhou yinxin
Polyethylene English abbreviation PE, it is a polymer of ethylene, non-toxic. Easy coloring, good chemical stability, cold resistance, radiation resistance, good electrical insulation. It is suitable for food and medicine packaging materials, the production of food utensils, medical instruments, but also do insulation materials in the electronic industry.
PVC is a polymer of vinyl chloride. It has good chemical stability and is resistant to acid, alkali and some chemicals. It is resistant to moisture, aging and fire. It can be used at a temperature of no more than 60℃ and will harden at low temperatures. Polyvinyl chloride is divided into soft plastics and hard plastics. Soft mainly made of film, as packaging materials, rain supplies, agricultural seedling film, but also for cable, wire insulation layer, artificial leather products. Hard general made of pipe and plate, pipe used as water pipe and delivery of corrosion resistant fluid pipe, plate used as a variety of tank lining and floor.
Crosslinked polyethylene (XLPE) is an important technology to improve the performance of PE. After the crosslinking modification, the properties of PE can be greatly improved, which not only significantly improves the mechanical properties, environmental stress cracking resistance, chemical corrosion resistance, creep resistance and electrical properties of PE, but also significantly improves the temperature resistance grade, which can increase the heat resistance temperature of PE from 70℃ to more than 90℃. Thus greatly broaden the scope of PE application. At present, crosslinked polyethylene (XLPE) has been widely used in pipe, film, cable material and foam products.