PVC current development situaion

In the production of PVC foam board brand, according to the thickness of the product, the length of the straight section and the compression ratio of the mold is different. Due to the thicker foam layer with elastic deformation space, the straight cross-section of the thick board mold is longer and the compression is larger, which can increase the melting pressure and foaming speed, and the flat cross-section of the mold is generally designed to be shorter to prevent excessive melting pressure of the compression is smaller.

China's PVC sheet development is relatively fast, the annual growth rate of 8%, while the annual demand growth rate of 2%. In the plastic sheet, PVC sheet dosage has been in front, water supply and drainage pipes will also use pvc sheet. Due to the relative maturity of technology, PVC water supply pipe material in product innovation is not much investment, relatively few new products, the market more ordinary products, high technology, high value-added products less, similar generic products, low-end products account for most of the products, less.