Introduction of classification and performance of PVC sheetIntroduction of classification and performance of PVC sheet
PVC sheets have been gradually used by people in cabinets, bath cabinets, etc., but how much do you know about the unique performance and classification of PVC cabinet boards? Below I will give you a detailed introduction, so that you can learn more about the unique properties and classification of pvc sheet:
Mechanical properties. PVC has high hardness and mechanical properties. And increase with the increase of molecular weight, but decrease with the increase of temperature. Hard 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 The thermal stability of PVC is very poor. It begins to decompose at 140°C and the melting temperature is 160°C. The coefficient of linear expansion of PVC is small, it is flame retardant, and the oxidation index is as high as 45 or more. 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. Dielectric constant, dielectric loss tangent and volume resistivity are relatively large, and the corona resistance is not good. It is generally suitable for medium and low voltage and low frequency insulating materials. Environmental performance PVC is resistant to most inorganic acids, alkalis, salts, and most organic solvents. Suitable for pharmaceutical and chemical anti-corrosion materials.
PVC board Applicable temperature: -50℃-70℃ Tensile strength: 29.4mpa Bending strength: 45.6mpa
Low temperature (-5℃ drop hammer impact): 10 times zero crushing.
Color: According to customer requirements.
Life: not less than 50 years.
According to the size of molecular weight, PVC can be divided into two types: general-purpose type and high-poly type and degree type.
According to the degree of hardness, it can be divided into soft PVC and hard PVC.
According to the production process, PVC foam board can be divided into PVC crust foam board and PVC free foam board.