Low-Molecular-Weight Glycerol Esters as Plasticizers for Poly(vinyl chloride)
Résumé
Phthalates are the most important plasticizers used in the polymer industry. However, their fossil origin and the results of recent tests showing their potential negative effect on human health have encouraged the polymer industry to turn toward non-phthalate plasticizers. At the same time, the biodiesel industry produces a surplus of glycerol, thus leading the scientific community to seek new applications for this substance. This paper presents the performance of eight esters derived from glycerol as plasticizers for poly(vinyl chloride), including tests to evaluate their compatibility. Results show that glycerol esters obtained from propanoic, butanoic, isobutanoic, isopentanoic, and benzoic acids, while volatile, can be used as poly(vinyl chloride) plasticizers in certain applications