Innovations and Advances in PVC Technology-3

PVC Compound

Some companies have developed a renewable modifier for PVC that increases the strength and resists fungi and biodegradation. 

PHA (polyhydroxyalkanoate), a biobased copolymer, offers improved processing with all PVC compounds.

While the PHA polymer is biodegradable, when used in a non-biodegradable polymer, the biodegradation process is not increased. 

The modifier does not migrate and provides easier handling and processing. This formulation allows for using a single product in formulation to eliminate multiple modifiers and processing steps.

The PHA modifier gives higher flexibility and impact resistance to flexible and semi-rigid PVC. 

A next-generation PHA is being optimized for rigid PVC in outdoor use. 

The modifier should combat the poor light stability and oxidation of ABS (Acrylonitrile Butadiene Styrene) and MBS (Methaacrylate Butadiene Styrene) while providing more strength than ASA (Acrylonitrile Styrene Acrylate) and CPE (Chlorinated Polyethylene) modifiers.

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