The physical and mechanical properties of solid rigid plastic PVC sheet depend on the molecular weight of the resin, the content of plasticizers and fillers. The higher the molecular weight of the resin, the higher the mechanical properties, cold resistance, and thermal stability, but the processing temperature is also required to be higher, and the molding is more difficult; the lower molecular weight is the opposite of the above. As the filler content increases, the tensile strength decreases.
The long-term use temperature of most solid rigid plastic PVC sheets should not exceed 55 degree , but the long-term use temperature of specially formulated PVC plastics can reach 90 degree . Soft PVC products will harden at low temperatures. Polyvinyl chloride contains chlorine atoms in its molecules, so it and its copolymers are generally flame-resistant, self extinguishing, and non drip.
The electrical properties of solid rigid plastic PVC sheet depend on the amount of residue in the polymer, the type and amount of various additives in the formulation. Solid rigid plastic PVC sheet is not like polyethylene, polypropylene and other non-polar polymers. Its electrical properties change with frequency and temperature, such as dielectric constant decreases with increasing frequency.