China Plastics Network - the main classification of PVC

PVC material is polyvinyl chloride, which is a very versatile material that is often used in our lives. Such as PVC pipe, PVC floor, PVC wallpaper and so on. The demand for PVC in the Indian market is increasing year by year, and in the future, Indian PVC will continue to rely on import supplements. 1. Different types of PVC production methods, PVC can be divided into: general-purpose PVC resin, high-polymerization PVC resin, cross-linked PVC resin. The general-purpose PVC resin is formed by polymerization of vinyl chloride monomer under the action of an initiator; the high polymerization degree PVC resin refers to a resin obtained by adding a chain extender in a vinyl chloride monomer polymerization system; the crosslinked PVC resin is A resin obtained by polymerizing a crosslinking agent containing a diene and a polyene into a vinyl chloride monomer polymerization system.
According to the method for obtaining vinyl chloride monomer, it can be divided into calcium carbide method, ethylene method and import (EDC, VCM) monomer method (the ethylene method and the imported monomer method are commonly referred to as ethylene method).
According to the polymerization method, polyvinyl chloride can be classified into four major categories: suspension polyvinyl chloride, emulsion polyvinyl chloride, bulk polyvinyl chloride, and solution polyvinyl chloride. The suspension method of polyvinyl chloride is the largest variety of production, accounting for about 80% of the total PVC production. The chart below lists the basic characteristics of these four PVCs.

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