Keywords: Poly vinyl chloride; plastisol; rheology; storage time; viscosity
Polyvinyl) chloride (PVC) plastisol refers to the suspension dispersion system formed through stirring and dispersing PVC paste …show more content…
In the ordinary storage environment, the change in the viscosity with time of PVC plastisol has a distinct effect on the stability of processing conditions for products. Previous studies indicate that in practical application, the viscosity of PVC plastisol increases with increasing storage time [1]; the type of raw materials such as paste resin[2] and plasticizer[3], as well as the processing technology[4], affect the viscosity. As for the follow-up molding process of the product, the PVC plastisol undergoes gelation, fusion, and molding under a certain baking temperature and time. Therefore, the changes in the rheological properties of PVC plastisol with temperature and time are crucial in ensuring the product’s quality. With increasing temperature, the viscosity of