Chemical Process Engineering and Forest Products Research Centre

Session 19


Research Seminar #19, May 07, 2014, 14h15-15h15h

Seminar Presentation

Sofia Marceneiro, Effects of ionic liquids on the rheological and thermomechanical properties of PVC-based formulations

Poly(vinyl chloride) (PVC) based plastisols result from the dispersion of fine polymer particles into liquid plasticizers, which are often phthalates due to their cost-effectiveness and high compatibility with PVC. However, there is a current need to substitute phthalate based plasticizers by greener alternatives, with reduced migration/leaching/volatilization profiles, in order to optimize production processes, while maintaining the performance of the plasticized materials, and reduce toxicological risks to consumers and to the environment. Therefore, the main objective of this work was to evaluate the effect of the partial substitution of conventional plasticizers by two low-volatile  ionic liquids on the rheological and thermo-mechanical properties of an emulsion PVC grade used in the automotive industry.