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Effects of Nano-Particles on DOP Migration and Tensile Properties of Flexible PVC Sheets

The effects of nano-particles (nano-CaCO3, nano-SiO2 and MMT modified by organic modifier) on DOP migration and tensile properties of flexible PVC sheets were studied. Nano-particles can hinder DOP migration from PVC matrix. And the anti-migration properties of PVC samples were different due to the processing time. The DOP migration of PVC samples with the addition of 5 phr MMT and being processed for 8 min was the lowest. Tensile properties of PVC samples changes with the increasing content of nano-particles and processing time. And the dispersing of nano-particles in PVC matrix needed to be solved in further study.