In the PVC foamed products, the purpose of adding ultra-high molecular weight polymer: First, in order to promote the plasticization of PVC; Second, in order to improve the melt strength of PVC foam materials, to prevent the merger of bubbles to obtain uniform foaming products The third is to ensure that the melt has good fluidity in order to obtain a good appearance of the product. Due to the different products of different foaming product manufacturers, the equipment, processes, raw materials and lubrication systems used are different. Therefore, we have developed foaming regulators with different properties to meet the different needs of users.
Foaming Mechanism Of PVC Foamed Board
- May 11, 2018 -