Electrical properties: 4x8 pvc foam board is a polymer with better electrical properties, but due to its greater polarity, the 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.
Thermal performance: The heat stability of PVC board is very poor, it starts to decompose at 140℃, and the melting temperature is 160℃. The linear expansion coefficient of PVC is small, it is flame retardant, and the oxidation index is as high as 45 or more.
Mechanical properties: PVC board has higher hardness and mechanical properties. It increases with the increase of molecular weight, but decreases with the increase of temperature. 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.
Environmental performance: PVC board can withstand most inorganic acids, alkalis, salts, and most organic solvents. Suitable for medicine and chemical anticorrosive materials.
If you are interested in wpc foam board, welcome to your come and purchase!