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Characteristics of PVC sheet PK ordinary plastic sheet

2019-07-10 11:40:47

Compared with other materials, plastic board has the following characteristics

〈1〉 Light weight and strong 2〉 Easy to process, mass production, low price 〈3〉 Wide use, easy to color, partly resistant to high temperature 〈4〉 Chemical resistant 〈5〉 Surface gloss, partly transparent or opaque 〈6〉 Most Good insulator

Plastic boards are also divided into general plastics and engineering plastics, which are mainly defined by the wide range of uses. For example, PE boards and PP boards are cheap and can be produced on a variety of different types of machines (such as extruders, laminators) . Engineering plastics are more expensive, but their raw material stability and physical properties are much better. Generally speaking, they have both rigidity and toughness. It has good corrosion resistance, high strength, high hardness, easy processing and welding, etc. It is widely used in acid-base tanks, extraction vessels, and other chemicals, water treatment, environmental protection equipment, etc.

 The plastic board has excellent chemical stability, strong corrosion resistance, high hardness, high strength, UV resistance (aging resistance), fire resistance and flame retardant (self-extinguishing), reliable insulation performance, smooth surface, flat, non-absorbent, non-absorbent Deformation, easy processing, etc. It is an excellent thermoforming material, which can replace some stainless steel and other corrosion-resistant synthetic materials. It is widely used in chemical, petroleum, electroplating, water purification treatment equipment, environmental protection equipment, mining, extraction engineering, electronic circuits Board, fireproof board template, non-burning brick pallet, construction template and advertising decoration industries.

    PVC board performance

   General performance PVC resin is a white or light yellow powder with a relative density of 1.35-1.45. The hardness of the product can be adjusted by adding the number of plasticizers. Pure PVC has very little water absorption and air permeability.

   Mechanical properties Mechanical properties PVC has high hardness and mechanical properties. And as the molecular weight increases, the molecular weight increases, but decreases as the temperature increases. Rigid PVC has good mechanical properties, and its elastic modulus can reach 1500-3000MPa. The elasticity of soft PVC is 1.5-15 MPa. But the elongation at break is as high as 200%-450%. The friction of PVC is general, the static friction factor is 0.4-0.5, and the dynamic friction factor is 0.23.

   Thermal properties PVC has very poor heat resistance stability. It starts to decompose at 140°C, and its melting temperature is 160°C. PVC has a small linear expansion coefficient, is flame retardant, and has an oxidation index of 45 or more.

   Electrical properties Electrical properties PVC is a polymer with better electrical properties, but due to its greater polarity, its electrical insulation is not as good as PP and PE. The dielectric constant, dielectric loss tangent and volume resistivity are relatively large, and the corona resistance is not good, and it is generally suitable for medium and low voltage and low frequency insulating materials.

  Environmental performance: PVC is resistant to most inorganic acids, acids, alkalis, salts, and most organic solvents. Suitable for medicine and chemical anticorrosive materials.

PVC sheet


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