Characterization of the curing process of vinyl plastisols with epoxidized linseed oil as a natural‐based plasticizer

Abstract

In this work, we have evaluated the curing process of a natural-based plasticizer, epoxidized linseed oil, as a possible alternative to phthalate substitution for polyvinyl chloride. Several curing times ranging from 6 to 14 min at different isothermal curing temperatures in the 140-220 C range have been selected. The effects of the curing process (in terms of time and temperature) have been determined by mechanical tests, color measurements, and microstructure characterization. The obtained results show that optimum overall properties are obtained for curing times of 10-12 min at 200 C or 8 min at 220 C, which are typical values of industrial processing of vinyl plastisols.

From Epoxidized Linseed Oil to Bioresin: An Overall Approach of Epoxy/Anhydride Cross‐Linking

“…In recent years, researchers have focusedo nt he development of new polymers with low toxicitya nd low migration plasticizers based on epoxidized vegetable oils as environmentally friendly alternatives for phthalate substitution. [22] The use of epoxidized linseed oil (ELO) has severale ffects on these formulations, the most significant of which is its role as ap lasticizer due to its flexible structure, which enhances the mechanical properties. Another important contribution relatest oi ts capacity to scavenge acidic groupst hrough catalytic degradation by the conversion of the formed cation radicals or excited diradicals into allylic structures that can start the growth of new polyene sequences in ac onventionalw ay.…”

Plasticizing effect of biobased epoxidized fatty acid esters on mechanical and thermal properties of poly(lactic acid)

“…These epoxidized vegetable oils can be successfully used as high environmentally friendly epoxy resins [27][28][29][30] as well as plasticizers for poly(vinyl chloride), PVC industrial formulations due to its high compatibility with PVC resins [31][32][33][34][35]. Epoxidized vegetable oils also have been used as plasticizers for PLA.…”

Improvement of Mechanical Ductile Properties of Poly(3-hydroxybutyrate) by Using Vegetable Oil Derivatives

“…Moreover, these plasticizers show some additional advantages that make them still more interesting for industrial formulations for different reasons: they are obtained from renewable resources, they have been reported to be disintegrable in compost soil, they are more respectful with environment than conventional petroleum‐based plasticizers, they are readily available at large‐scale and finally, they can be obtained in huge amounts at cost‐effective prices . Currently, these epoxidized vegetable oils are widely used as secondary plasticizers and stabilizers for industrial polyvinyl chloride (PVC) formulations . Other uses in engineering applications include biodegradable lubricants, polyol production, and manufacturing of environmentally friendly polyurethane foams …”