Investigation of the technological properties of rigid PVC compositions with different fillers

Abstract

The paper presents the results of the analysis of rigid PVС compositions with different fillers. As the fillers were used powders of chalk, diatomite, zeolite, and shungite, which differed in dispersity and chemical nature. The melt viscosity of the filled PVC blends and moments on Brabender rotors were analyzed by using Mooney's equation. A conclusion about the thickness of the polymer layers with the lowered mobility on the filler surface was made. The results can be useful for developers of PVC compositions for different purposes.

Keywords

• polyvinylchloride
• rigid blends
• fillers
• melt viscosity
• extrusion