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What are the performance of PVC materials?

Popularity:341Publication time:2017-08-15
PVC (PVC)The true color is a micro-yellow translucent, and it is shiny. Transparency is better than polyethylene, polypropylene, depending on polystyrene, with different amounts of the auxiliary agent, is divided into soft, hard polyethylene, soft products flexible and tough, hard to stick, hard-working hardness than low density polyethylene, And lower than polypropylene, a white-haplified phenomenon in the flexion. Common products: plates, pipes, soles, toys, doors and windows, wire skins, stationery, etc. It is a polymer material using a hydrogen atom in polyethylene using a chlorine atom.

What is the performance of PVC? You know, the following Xiaobian gives you the performance of PVC:

Generally, the PVC resin is a white or pale yellow powder, and the relative density is 1.35-1.45. The softness of the article can be adjusted by adding a plasticizer.

Mechanical performancea tough chemically resistant synthetic resin used for a wide variety of products.Have high hardness and mechanical properties. And increase with the increase of molecular weight, but decreases with temperature rise. The mechanical properties of hard PVC are good, and its elastic modulus can reach 1500-3000MPa. The elastic 1.5-15 MPa of soft PVC. However, the elongation of the break is as high as 200% -450%. The friction of PVC is generally, and the static friction factor is 0.4-0.5, and the dynamic friction factor is 0.23.

Thermodynea tough chemically resistant synthetic resin used for a wide variety of products.The heat resistance is very poor, and the decomposition is started at 140 ° C, the melting temperature is 160 ° C. The linear expansion coefficient of PVC is small, with flame retardation, and the oxidation index is up to 45 or more. Therefore, it is necessary to add a thermal stabilizer during processing to ensure the performance of the product.

Electrical performancea tough chemically resistant synthetic resin used for a wide variety of products.It is a polymer having a good electrical performance, but since itself has a large polarity, electrical insulation is not as good as PP and PE. Dielectric constant, dielectric loss angular node and volume resistance rate are large, and the electrical resistance is not good, generally suitable for medium and low pressure and low frequency insulating materials.

Environmental performance PVC can resist most inorganic acid, alkali, salt, most organic solvents. Suitable for pharmaceutical, chemical anti-corrosion materials.