PVC S60-61518 (Ethylene based - SG 8) - Taiwan

IUPAC Name

:   Poly(1-chloroethylene)

Cas Number

:   9002-86-2

HS Code

:   390410

Formula

:  

C2H3Cl

Basic Info

Appearance Name

:   White Powder

Common Names

:   Polychloroethylene

Packaging

:   25 Kg Bag

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Technical Document

Brief Overview

Vinyl chloride serves as the monomer in the synthesis of the synthetic polymer known as polyvinyl chloride, or PVC. It is a thermoplastic substance with many uses since it can easily molded and sculpted into different shapes. PVC is widely utilized in the plumbing, electrical, medical, and building industries and is well known for its strength, durability, and chemical resistance. PVC is frequently used for vinyl siding for homes, electrical wire insulation, and water and sewage pipelines. Additionally, it is utilized in medical supplies including blood bags and tubing.

Manufacturing Process

PVC resin is a thermoplastic polymer that is widely used in many different industries because of its exceptional chemical resistance, affordable price, and long lifespan. The processes listed below are typically involved in the production of PVC resin:

  1. Vinyl Chloride Monomer (VCM) Production: Ethylene is chlorinated in the presence of hydrogen chloride and oxygen to create volatile chemical monomers (VCM). The generated VCM gas is then stored and purified in order to be used in the next stage.

  2. Polymerization: The next step is to polymerize the VCM gas, either by suspension or emulsion polymerization.

  • A dispersion agent and a catalyst aid in the suspension of VCM droplets in water during suspension polymerization. The polymerization process is then started by heating the mixture while it is under pressure. After that, the PVC particles are dried, cleaned, and sorted by size.
  • Emulsion polymerization is a method that uses a catalyst and an emulsifier to disperse VCM particles in water. The mixture is then rapidly heated and stirred to start the polymerization process. After that, the PVC particles are dried, cleaned, and coagulated.
  1. Additives: Usually, PVC resin is mixed with other materials to enhance its characteristics. Among these additions are stabilizers, which stop deterioration during production and use; plasticizers, which increase flexibility; fillers, which lower prices and improve mechanical characteristics; and pigments, which add color.

  2. Processing: To make the finished product, the PVC resin is then treated using a variety of techniques, such as extrusion, injection molding, and calendaring.

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