Properties of biobased epoxy resins from epoxidized linseed oil (ELO) crosslinked with a mixture of cyclic anhydride and maleinized linseed oil

eXPRESS Polymer Letters

M. D. Samper¹ 

关键词: termosetting resins;    epoxidized linseed oil;    crosslinking;    cyclic anhydrides;    modified vegetable oils;   

DOI  :  10.3144/expresspolymlett.2019.34

学科分类：生物科学（综合）

来源: eXPRESS Polymer Letters

【 摘 要 】

This works aims at the development thermosetting resins derived from epoxidized linseed oil (ELO) of highbiobased content, by using a mixture of crosslinking agents, i.e. methyl nadic anhydride (MNA) and maleinized linseed oil(MLO). By using only MNA as crosslinking agent, the obtained resins are characterized by high stiffness and, consequently,high fragility. When MLO content increasing in the crosslinking mixture, up to 25 wt%, a decrease in mechanical resistantand thermomechanical is detected, thus indicating that MLO can provide flexibility to ELO-based thermosetting resins whichis an interesting issue to obtain tailored properties by selecting the appropriate mixture composition. In general, the thermosettingresin crosslinked with 10 wt% MLO and 40 wt% MNA gives balanced properties together with noticeable biobasedcontent, thus broadening the potential of these materials for uses in green composites and coatings.

【 授权许可】

CC BY