PVC (Poly-Vinyl-Chloride)

PVC (Poly-Vinyl-Chloride) is used in the manufacture of varied PVC based products. The different grades of resin offer a diverse range of properties that can be used in all the processing methods.

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Detailed Description for PVC (Poly-Vinyl-Chloride)

PVC, a synthetic resin belonging to the family of polymeric organic compounds, manufactured by bulk, solution, suspension, and emulsion polymerization of vinyl chloride monomer, with free-radical initiators (peroxide catalyst), usually in aqueous suspension or emulsion. After mixing with plasticizers, stabilizers, and pigments, the resin may be fabricated by techniques such as calendering, molding, or extrusion into flexible articles such as raincoats, shower curtains, and packaging films. The resin is not plasticized for use in making rigid products such as water pipe, plumbing fittings, and phonograph records.

For use in making piping or structural panels that require high resistance to impact, polyvinyl chloride often is blended with small proportions of rubbery synthetic polymers. Resins more easily plasticized than polyvinyl chloride can be prepared by adding various proportions of vinyl acetate to vinyl chloride before polymerizing the mixture; stiffer resins result from treatment of polyvinyl chloride with chlorine.

Pure PVC finds application in the construction trades, where its rigidity and low flammability are useful in pipe, conduit, siding, window frames, and door frames. In combination with plasticizer (sometimes in concentrations as high as 50 percent), it is familiar to consumers as floor tile, garden hose, imitation leather upholstery, and shower curtains.

 


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