product manual:

PVC rigid board is a kind of board made of PVC as raw material. PVC rigid board is a widely used product in industry, especially in chemical anti-corrosion industry. PVC is a resin resistant to acid, alkali and salt. Due to its good chemical properties and relatively low price, PVC is widely used in various industries such as chemical industry, building materials, light industry and machinery.

Pressing time:

PVC rigid board is usually made by superimposing and heating the rolled PVC sheet. According to needs, this kind of PVC rigid board can be made into various thicknesses flexibly. Since PVC is a thermally unstable resin, it decomposes to release HCl under heat, and forms a polyene structure. If long-term high-temperature processing, it will seriously affect product performance. However, PVC is also a poor thermal conductor, and the heat transfer is slow. To prepare products with good performance, the heating time is difficult to control. If the heating time is not enough, the board is easy to delaminate; if the heating time is too long, it will not only reduce production efficiency, What is more serious is that PVC will accelerate decomposition under high temperature for a long time, which will affect the performance of the product.