PVCPE

PVCPE refers to a polymer blend or composite consisting primarily of polyvinyl chloride (PVC) and polyethylene (PE). By adjusting the share of PVC and PE, manufacturers tailor stiffness, impact resistance, and processability. In many formulations the blend is immiscible and may require compatibilizers or grafted polymers to improve interfacial adhesion and homogeneity.

Manufacturing methods include melt blending in twin-screw extruders, extrusion compounding, or injection molding. Stabilizers are often added to protect PVC from thermal degradation during processing; processing temperatures are limited to minimize dehydrochlorination. Compatibilizers such as grafted polyolefins or block copolymers can improve phase compatibility. Additives such as UV stabilizers or flame retardants may be used as needed.

Material properties vary with composition. Higher PE content generally increases impact toughness and flexibility but reduces stiffness and heat resistance. PVCPE blends can offer a balance between rigidity and toughness, and are used for components where a compromise is desired. Common applications include piping, electrical insulation, packaging films, and automotive interior parts.

Environmental and recycling considerations: PVC adds chlorine content, which affects incineration emissions and recycling streams. Blending with PE can complicate sorting and end-of-life processing. Some routes focus on mechanical recycling into multi-material streams or chemistries that separate or convert components. Formulations are typically tailored to local recycling capabilities.