与含有四个环氧基的化合物进行反应相容性,用于聚乳酸/聚乙烯基酸-共甲酸) /热塑性粉三元生物复合材料
Yong-Gan Fang1, Jian-Yun Lin2, You-Cai Zhang1
1School of Chemistry, South China Normal University, GDMPA Key Laboratory for Process Control and Quality Evaluation of Chiral Pharmaceuticals, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, Guangdong 510006, PR China.
这项研究增强了多乳酸/多乙烯基酸盐-共甲酸盐 (PLA/PBAT) 和热塑性粉 (TPS) 生物复合材料. 使用反应性兼容剂MBDG,改善了界面粘附和机械性能,创造了有前途的绿色塑料替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物复合材料是一种生物复合材料.
背景情况:
- 聚乳酸/聚乙烯 (PLA/PBAT) 和热塑性粉 (TPS) 之间的界面粘附是一个重大挑战.
- 提高PLA/PBAT/TPS混合物的性能对于开发可持续材料至关重要.
研究的目的:
- 引入一种方便的化反应挤出方法,以提高PLA/PBAT/TPS生物复合材料的性能.
- 为了研究4,4'-甲-bis(N,N-二甲基基乙烯) (MBDG) 作为反应性兼容剂的有效性.
主要方法:
- 化反应挤出用于制备PLA/PBAT/TPS三元生物复合材料.
- 4,4'-methylene-bis(N,N-diglycidyl-aniline) (MBDG) 用作反应相容剂,并使用1 - 甲基利米达 (MI) 或三乙烯胺 (TD) 作为催化剂.
- 分析了MBDG的环氧基和PLA/PBAT和TPS的基/碳酸基之间的反应.
主要成果:
- MBDG有效地与PLA/PBAT和TPS反应,形成链式扩展和交联结构,特别是在MI催化过程中.
- 拉伸强度增加了20.0%,断裂时的延长增加了182.4%.
- 分子重量,热稳定性,结晶性,表面水性和融流动性随着MBDG含量增加而得到改善.
结论:
- 开发的化反应挤出方法成功增强了PLA/PBAT/TPS生物复合材料的性能.
- MBDG作为一种有效的反应兼容剂,改善了接口粘附和机械性能.
- 这些增强的生物复合材料显示出作为具有优越性质的绿色塑料产品的应用潜力.
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