Polyvinyl Chloride Addition Of Vinyl Chloride
This solid form can then be modified with the addition of fillers and plasticisers depending on the task at hand.
Polyvinyl chloride addition of vinyl chloride. Vinyl chloride is used primarily to make polyvinyl chloride pvc. The vinyl chloride had been exposed to sunlight and the white solid was a rigid polymer pvc. Pvc is produced from its monomer vinyl chloride. Polyvinyl chloride structure 2 pvc is a white brittle solid available in powder form or granules formed through an addition polymerisation reaction between vinyl chloride monomers figure 1.
About 13 billion kilograms are produced annually. Pvc is used in the manufacture of numerous products including packaging films and water pipes. Pvc geomembranes are made from pvc resin plasticizer s fillers and additives. Polyvinyl chloride is a white rigid quite brittle solid.
What is vinyl chloride. The earliest record of polyvinyl carbonate creation dates back to 1872 when a german scientist by the name of eugene baumann found a white solid appearing inside a flask of vinyl chloride. Pvc comes in two basic forms. Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc.
History of polyvinyl chloride. Vinyl chloride h2c chcl or c2h3cl n or c2h3cl cid 6338 structure chemical names physical and chemical properties classification patents literature biological activities safety hazards toxicity information supplier lists and more. Pvc is used to make a variety of plastic products including pipes wire and cable coatings and packaging materials. Polyvinyl chloride is produced in an addition polymerisation reaction using the chloroethene vinyl chloride monomer.
This polymerisation reaction proceeds by a free radical mechanism. Vinyl chloride is a colorless gas that burns easily. Pvc is a hard plastic that is made softer and more flexible by the addition of plasticizers the most widely used being phthalates. Rigid sometimes abbreviated as rpvc and flexible.
When used as a geomembrane plasticizer additions of 25 35 are common. Additives are used to modify the properties of polyvinyl chloride to make it more useful. Its most common use is in the construction industry but it is also used to manufacture signs in healthcare applications and as a fiber for clothing. Pvc is the world s third most widely produced synthetic plastic polymer after polyethylene and polypropylene about 40 million tons of pvc are produced each year.
Pvc vinyl chloride is an organohalogen compound that has important industrial applications.