Poly(vinyl chloride) processes and products. | Zendy

R N Wheeler | Zendy

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Poly(vinyl chloride) processes and products.

Author(s) -

R N Wheeler

Publication year - 1981

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.8141123

Subject(s) - vinyl chloride , suspension (topology) , monomer , porosity , suspension polymerization , emulsion , particle (ecology) , polyvinyl chloride , materials science , emulsion polymerization , chemical engineering , chloride , particle size , polymerization , polymer chemistry , composite material , polymer , copolymer , oceanography , mathematics , homotopy , pure mathematics , engineering , metallurgy , geology

Poly(vinyl chloride) resins are produced by four basic processes: suspension, emulsion, bulk and solution polymerization. PVC suspensions resins are usually relatively dust-free and granular with varying degrees of particle porosity. PVC emulsion resins are small particle powders containing very little free monomer. Bulk PVC resins are similar to suspension PVC resins, though the particles tend to be more porous. Solution PVC resins are smaller in particle size than suspension PVC with high porosity particles containing essentially no free monomer. The variety of PVC resin products does not lend itself to broad generalizations concerning health hazards. In studying occupational hazards the particular PVC process and the product must be considered and identified in the study.

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