Do you know the Relationship Between Vinyl and PVC?

As a Vinyl Soffit Manufacturers, share with you.

Vinyl is a kind of PVC, and vinly is commonly known as polyvinyl chloride.

PVC can be divided into soft PVC and hard PVC, among which hard PVC accounts for about 2/3 of the market and soft PVC accounts for 1/3. Soft PVC is generally used for floors, ceilings and leather surfaces, but because soft PVC contains softener (this is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to store, so its use range is limited.

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Hard PVC does not contain softener, so it is flexible, easy to form, not brittle, non-toxic and pollution-free, and has a long storage time, so it has great development and application value.

The essence of PVC is a kind of vacuum blister film, which is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, which is used in building materials, packaging, medicine and many other industries. Among them, the building materials industry accounts for the largest proportion at 60%, followed by the packaging industry, and there are several other small-scale applications.

According to the different application scope, PVC can be divided into: general-purpose PVC resin, high polymerization degree PVC resin, and cross-linked PVC resin. General-purpose PVC resin is formed by the polymerization of vinyl chloride monomer under the action of an initiator.

High degree of polymerization PVC resin refers to the resin polymerized by adding a chain extender to the vinyl chloride monomer polymerization system; cross-linked PVC resin is polymerized by adding a crosslinking agent containing diene and polyene to the vinyl chloride monomer polymerization system Made of resin.

According to the method of obtaining vinyl chloride monomer, it can be divided into calcium carbide method, ethylene method and imported (EDC, VCM) monomer method (the ethylene method and imported monomer method are commonly referred to as ethylene method).

According to the polymerization method, polyvinyl chloride can be divided into four categories: suspension polyvinyl chloride, emulsion polyvinyl chloride, bulk polyvinyl chloride, and solution polyvinyl chloride. Suspension process polyvinyl chloride is the largest variety in output, accounting for about 80% of the total output of PVC.

Suspension process PVC is divided into six models according to absolute viscosity: XS-1, XS-2, XS-6; XJ-1, XJ-2, XJ-6. The meaning of each letter in the model: X-suspension method; S-loose type; J-compact type.

According to the content of plasticizer, PVC plastics are often divided into: non-plasticized PVC, plasticizer content is 0; rigid PVC, plasticizer content is less than 10%; semi-rigid PVC, plasticizer content 10-30%; soft PVC, plasticizer content is 30-70%; polyvinyl chloride paste plastic, plasticizer content is more than 80%.

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