Compare the differences of PVCUH tubes

What are the differences between PVC-U pipes and PVC pipes? PVC-U pipes and PVC pipes are the same. UPVC, also known as PVCU, is generally called rigid PVC. It is an amorphous thermoplastic resin made by polymerizing polyvinyl chloride monomers, with certain additives (such as stabilizers, lubricants, fillers, etc.). Besides additives, it also utilizes blending with other resins to modify the material, giving it significant practical value.

This type of resin includes CPVC, PE, ABS, EVA, MBS, etc. UPVC has high melt viscosity and poor flowability; even increasing the injection pressure and melt temperature does not significantly change its flowability. Furthermore, the resin's molding temperature is very close to its thermal decomposition temperature, resulting in a narrow temperature range suitable for molding, making it a difficult-to-mold raw material.

U-PVC coiled pipe, also known as double-walled steel-plastic composite coiled pipe, is a new technology. Compared to cement pipes, it has advantages in many aspects. PVC pipes can be divided into two categories based on their characteristics: soft PVC pipes and rigid PVC pipes. The key difference is whether or not they contain plasticizers.

Soft PVC pipes contain plasticizers, therefore their physical properties are relatively weak and they cannot withstand certain pressures. Therefore, soft PVC pipes are generally used in ceilings, floor tiles, and on the surfaces of leather products, often as conduits. Rigid PVC pipes do not contain plasticizers, making them very easy to mold during manufacturing and resulting in excellent physical properties. Rigid PVC pipes are generally used as drainage pipes and water supply pipes, possessing significant comprehensive application value.