The full form of PVC is Poly Vinyl Chloride. Vinyl chloride polymerization creates PVC, a polymer. Numerous products, such as raincoats, wires, pipes, bottles, credit cards, flooring, etc., include PVC. It may be used to make various products because it is water and fire-resistant. PVC is a thermoplastic polymer with the chemical formula [CH2=CHCl]n that melts when heated and solidifies when cooled.
A Manufacturing Method for PVC
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Vinyl monomer (VCM), created by chlorinating ethylene, is polymerized to create polyvinyl chloride. The resulting ethylene dichloride (EDC) is pyrolyzed in a cracking apparatus.
CH2=CHCl → -[CH2=CHCl]n-
Several vinyl chloride monomers undergo Addition polymerization to produce polyvinyl chloride. The famous polymerization process to synthesise PVC is
- Emulsion or suspension polymerization
- Suspension polymerization
Important Properties of PVC
- PVC is tough, lightweight and abrasion-resistant.
- PVC is resistant to climate, chemicals, corrosion, abrasion and shock. Hence, it is the preferred method for several outdoor and long-life products.
- PVC is an excellent material for insulation due to its high dielectric strength.
- PVC products are self-extinguishing due to their high chlorine content.
- PVC is resistant towards all inorganic chemicals.
- Adding plasticisers such as phthalate can make PVC more flexible and softer.
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Applications of PVC
- Pipe construction
- profile applications like doors and windows
- Food covering sheets
- Bottles
- Cards such as credit or debit cards
- Electrical cable insulation,
- Plumbing
- Signage
- phonograph records
- Imitation leather
- Flooring
- Inflatable products, etc.
Second Full Form of PVC
Permanent Virtual Circuit is another name for PVC in its entirety. A logical connection between the two frame relay terminals and the network-based ATM is called a permanent virtual circuit (asynchronous transfer mode). The physical connection between the nodes is established above the link. PVC (persistent virtual circuit) does not need to be rebuilt after each transmission, unlike SVC (switched virtual circuit), which must. The information channel between nodes is managed if PVC is built.