Modification on PBS using epoxy-functionalized core-shell starch particles

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 9, 2024

Polybutylene succinate (PBS) is an aliphatic linear polyester that known for its excellent biodegradability and biocompatibility, making it one of the most promising application polymers. However, disadvantages poor toughness, low thermostability, high crystallinity limit large-scale commercial applications. In this article, a novel epoxy-functionalized core-shell starch particle (CSP-GMA) successfully synthesized by virtue soap-free emulsion polymerization, which consists "hard" (St) core "soft" ethyl acrylate (EA) shell grafted with glycidyl methacrylate (GMA). A binary blend biodegradable polymers prepared via melt process CSP-GMA as modifier PBS polymer matrix. The mechanical properties, thermal behavior, crystallization stability microscopic morphology PBS/CSP-GMA blends are thoroughly studied. incorporation 20 wt% into promotes increase in impact strength 55% elongation at break 173% higher than pure respectively, indicates our work proposes efficient strategy fabricating good comprehensive properties cost. DSC testing shows reduced comparison to PBS, while temperature also decreased, confirming can facilitate PBS. SEM observation reveals owing compatibility arising between two phases interface due presence epoxy group on surface, better dispersed matrix, resulting improvement performance blends.

Language: Английский

Modification on PBS using epoxy-functionalized core–shell starch particles

Journal of Polymer Research, Journal Year: 2024, Volume and Issue: 31(9)

Published: Aug. 19, 2024

Language: Английский