PVC SG8-19114 (Carbide based - SG 8) - China

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

Polyvinyl chloride, or PVC, is a synthetic polymer that is made using vinyl chloride as the monomer. This thermoplastic material has a wide variety of uses since it can be readily molded and sculpted into various shapes. PVC is well renowned for its strength, durability, and chemical resistance and is used extensively in the plumbing, electrical, medical, and building sectors. PVC is widely used in water and sewage pipes, electrical wire insulation, and vinyl siding for dwellings. It is also used in medical products like as tubing and blood bags.

Manufacturing Process

PVC resin is a thermoplastic polymer that finds extensive application across several sectors due to its remarkable resistance to chemicals, reasonable cost, and extended durability. The following procedures are often employed in the production of PVC resin:

  1. Production of Vinyl Chloride Monomer (VCM): To produce volatile chemical monomers (VCM), ethylene is chlorinated in the presence of hydrogen chloride and oxygen. The produced VCM gas is then stored and purified so that it may be utilized in the next step.

  2. Polymerization: Subsequently, the VCM gas needs to be polymerized using either suspension or emulsion polymerization.

  • In suspension polymerization, VCM droplets are suspended in water with the help of a dispersion agent and a catalyst. After that, the mixture is heated under pressure to begin the polymerization process. Subsequently, the PVC particles undergo drying, cleaning, and size sorting.

  • Emulsion polymerization disperses VCM particles in water by use of an emulsifier and a catalyst. The polymerization process is then initiated by quickly heating and stirring the liquid. The PVC particles are then cleaned, dried, and coagulated.

  1. Additives: In order to improve its qualities, PVC resin is typically combined with additional substances. These include fillers that cut costs and enhance mechanical properties, plasticizers that increase flexibility, stabilizers that prevent degradation during manufacturing and use, and pigments that provide color.

  2. Processing: The PVC resin is subsequently processed utilizing a number of methods, including as extrusion, injection molding, and calendaring, to create the final product.

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