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chloride, (IUPAC Polychloroethene) commonly abbreviated PVC, is
a widely used thermoplastic polymer.
chloride is a colourless gas with a characteristic mild, sweet
odour. A toxic and hazardous material, vinyl chloride has been
classified as a group A, human carcinogen.
- PVC is a
thermoplastic material. Thermoplastic materials are those that
can be melted again and again.
- PVC is
strong, lightweight, durable and versatile.
chloride monomer (VCM) is used almost exclusively in
polyvinyl chloride (PVC) manufacture.
basic raw materials for PVC are derived from salt and oil.
Polyvinyl chloride is produced by polymerization of the
monomer vinyl chloride.
chemical process for making PVC involves three steps: first,
production of the monomer, vinyl chloride; then the linking
of these monomer units in a polymerisation process; and
finally the blending of the polymer with additives.
are four polymerization routes for the manufacture of PVC.
They are as follows : Suspension Polymerization, Emulsion
Polymerization, Bulk or Mass Polymerization, Solution
PVC is commonly used as the insulation on electric
wires; the plastic used for this purpose needs to be
Polyvinyl chloride is also widely used for producing
Nowadays, PVC is commonly used in the construction
sector, for example in window frames and shutters, pipe
cabling and coating, etc..
can be used for flooring, windows and door frames and
shutters, water and waste pipes, electrical applications
such as cable and wire insulation materials,
architectural glazing systems, wallpaper, etc.
PVC has been widely used for surgery, pharmaceuticals,
drug delivery and medical packaging.
Worldwide PVC is the leading raw material for window
frames when it comes down to the fact of comparing
weather resistance, mechanical properties and price.
itself is highly dependent on the construction
market, which reflects the ups and downs of the
global VCM market has been growing at nearly
4%/year. However, growth rates in the developed
world have been slipping as these markets mature
while stronger demand growth has been seen in Asia,
in particular China and India.
estimated that the present consumption of PVC pipes
is approximately 800,000 tons per annum in India.
line with Asia-Pacific GDP growth, demand growth for
PVC in 2005 is estimated at 7%, representing an
increase from approximately 13 million tons in 2004
to almost 14 million tons in 2005.
Existing and projected demand for high-quality PVC
is still expected to be supplied by ethylene-based
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