Foaming Mechanism Of PVC Foam Board

- Apr 09, 2019-

  PVC foamed sheets, also known as Chevron boards and Andy boards, are chemically composed of polyvinyl chloride, so they are also called foamed polyvinyl chloride sheets. Widely used in passenger cars, train car roofs, cabinet core layers, interior decoration panels, building exterior wall panels, interior decorative panels, offices, residential, public building blocks, commercial decorative frames, clean room panels , ceiling panels, screen printing, computer lettering, advertising signs, display panels, sign board and other industry and chemical anti-corrosion engineering, thermoforming parts, cold storage panels, special cold preservation engineering, environmental protection sheet molds, sports equipment, aquaculture materials Waterproof equipment, water-resistant materials, art materials and various light partitions instead of glass ceilings.

  In the PVC foamed product, the purpose of adding ultra-high molecular weight polymer is as follows: one is to promote the plasticization of PVC; the other is to improve the melt strength of the PVC foaming material and prevent the combination of bubbles to obtain a uniformly foamed product. The third is to ensure that the melt has good fluidity to obtain a product with good appearance. Due to the different products of different foamed product manufacturers, the equipment, process, raw materials and lubrication system used are different. Therefore, we have developed foaming regulators with different properties to meet the different needs of users.