The pvc board is made of pvc as a raw material. The pvc board can be divided into soft pvc and hard pvc. We always encounter friction problems when using this board. So how is the friction of pvc hard board?
Soft PVC is generally used on the floor, ceiling, and the surface of leather. However, because soft PVC contains a softener, it is easy to become brittle and difficult to store, so its range of use is limited.
PVC hard board does not contain softener, good flexibility, easy to form, not easy to brittle, non-toxic and pollution-free, long storage time, so it has great development and application value.
PVC hard board has higher hardness and mechanical properties. It increases with increasing molecular weight, but decreases with increasing temperature. The mechanical properties of PVC rigid plates are good, and the elasticity of soft PVC is slightly worse, but the elongation at break will be higher.
The rigidity of PVC rigid plate is general, the static friction factor is 0.4-0.5, and the dynamic friction factor is 0.23. The thermal stability is very poor, decomposition starts at 140 ° C, and the melting temperature is 160 ° C. The coefficient of linear expansion of PVC is small, it is flame-resistant, and its oxidation index is over 45.