PVC pipe

U-PVC, also known as hard PVC, is composed of an amorphous thermoplastic resin made of vinyl chloride monomer through polymerization and certain additives (such as stabilizers, lubricants, fillers, etc.). In addition to using additives, the method of blending and modification with other resins is also adopted, which makes it have obvious practical value. These resins are CPVC, PE, ABS, EVA, MBS and so on.

UPVC has high melt viscosity and poor fluidity. Even if the injection pressure and melt temperature are increased, the fluidity does not change much. In addition, the molding temperature of the resin is very close to the thermal decomposition temperature, and the temperature range that can be molded is very narrow, making it a difficult material to mold.