Polyvinyl chloride (PVC), is the world's third largest production of synthetic polymer plastics (after polyethylene and polypropylene), PVC is vinyl chloride monomer (VCM) in peroxide, azo compounds and other initiators or under the action of light, heat polymerization of free radical polymerization of polymers.
PVC was once the world's largest production of general-purpose plastic; the application is very wide. PVC has two types: hard (sometimes abbreviated as RPVC) and soft. Rigid polyvinyl chloride is used for construction pipes, doors and Windows. It is also used to make plastic bottles, packaging, bank cards or membership cards. Adding plasticizers can make PVC softer and more flexible. It can be used for plumbing, cable insulation, flooring, signage, phonograph records, inflatable products and rubber substitutes.
PVC (polyvinyl chloride) is an important plastic material with a range of unique properties and uses. The following are the main properties and uses of PVC:
Features:
Physical properties: PVC has high hardness and rigidity, and has good toughness and impact resistance. Its low density makes PVC products light and easy to carry.
1. Chemical properties: PVC has good stability for acid, alkali and salt and other chemicals, and can withstand most oils and solvents. In addition, PVC also has certain weather resistance and ultraviolet resistance.
2. Electrical performance: PVC has good insulation properties, often used in wire and cable insulation layer, electronic components insulation materials, etc.
3. Mechanical properties: PVC has high tensile strength and bending strength, wear resistance and fatigue resistance. Suitable for the manufacture of various parts that need to withstand stress.
4. Thermal performance: PVC has good thermal stability and can maintain its physical and mechanical properties in the temperature range of -40 ° C to +80 ° C.
5. Processing performance: PVC is easy to process and can be molded by injection molding, extrusion, calendaring and other processes. In addition, PVC also has good bonding properties and can be bonded with other materials.
6. Economic performance: PVC raw materials are abundant, production costs are relatively low, and prices are relatively affordable.
Application:
Due to the excellent performance of PVC, it has a wide range of applications in many fields. Here are some of the main uses of PVC:
1. Wire and cable: PVC is often used as an insulating layer of wire and cable, because of its good electrical insulation and chemical corrosion resistance.
2. Pipe system: PVC pipe is widely used in construction, water supply and drainage and other fields, because of its pressure resistance, corrosion resistance, lightweight and affordable.
3. Building materials: PVC can be used to manufacture doors and Windows, wall panels, floors and other building materials, because of its durability, waterproof, easy to clean.
4. Packaging materials: PVC film is often used in food packaging because of its high transparency, good barrier property and low cost.
5. Toy manufacturing: PVC is often used in the manufacture of toys because of its rich color, non-toxic and easy to process.
6. Medical supplies: PVC is used in the medical field to manufacture medical supplies such as catheters and medical bags, because of its non-toxic and chemical resistance.
7. Daily necessities: PVC is also widely used in the manufacture of various daily necessities, such as soles, raincoats, curtains and so on.
In short, PVC, with its unique properties and wide range of uses, has become one of the important plastic materials indispensable in modern life.
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