1. The basic concept of Polyvinyl Chloride
Pvc Resin 1. Concept
Polyvinyl chloride (PVC), an English abbreviation is PVC, is a chloride monomer (VCM) in or under the action of light and thermal agent in peroxide, or even nitride, and polymer. The average polymer and consequences of ethyl chloride are referred to as chlorine resin.
2. Classification
At present, there are four classification methods of polyvinyl chloride, which can be classified according to the different methods of obtaining the application field and chlorolythane monomer, polymerization method, and plasticizer content.
Among them, according to the
Ethylene-Vinyl Acetate method of obtaining a chloride monomer, it can be divided into a stone method, ethylene method, and import (EDC, VCM) monomerylum (traditionally referred to as ethylene method). According to the content of plasticizers, PVC plastic is usually divided into: non-plastic PVC,
Boric Acid Flakes and the content of plasticizers is 0; plasticizer content with a hard polyvinyl chloride of less than 10%; The semi-hard PVC plasticizer content is 30-70%soft PVCPVC paste, and the plasticizer content is greater than 80%.
two. Polyethylene use and industrial chain
Proficiency and different profiles are the largest areas of PVC consumption in my country, accounting for about 25%of the total PVC consumption. They are
Rubber And Plastic mainly used to make doors and windows and energy -saving materials. At present, their applications in the country are still growing significantly.
three. Industry Status
1. Production capacity and output
In 2021, my country's PVC production capacity was 27.13 million tons, an increase of 1.8%year -on -year, a net increase of 490,000 tons, and an output of 21.3 million tons, a year -on -year decrease of 6.6%. At present, China's total PVC production capacity accounts for more than 45%of the global total production capacity, accounting for the largest proportion.
