PVC blister box, the reason of the crack and fracture

Feb 28, 2020 Leave a message

PVC material is a kind of plastic decorative material, which is the abbreviation of PVC material. PVC resin is a thermoplastic polymer polymerized by vinyl chloride monomer (VCM). PVC is an amorphous polymer with crystallinity of 5%--10% crystallinity (melting point 175 degrees), which is made from PVC resin as the main raw material and added suitable antiaging agent and modifier.

The molecular weight, crystallinity, softening point and other physical energy of PVC change with the polymerization conditions (temperature). Based on PVC resin, PVC resin plastic is made by mixing with stabilizer, plasticizer, filler, colorant, modifier and other additives through plasticization and molding. PVC material has the characteristics of light weight, heat insulation, heat preservation, moisture-proof, flame-retardant and simple construction. Specifications, colors, patterns, rich in decoration, are widely used in production and life. For example, PVC water pipes, PVC plastic doors and windows, as well as plastic toys containing PVC, wires and cables. Due to its harm to human body, many countries in Europe, Japan and South Korea have restricted the products made of PVC. The outstanding advantages of general PVC resin plastic products are flame-retardant, wear-resistant, chemical corrosion-resistant, low gas and water vapor leakage.