生物聚复合材料的多种非共价相互作用量身定制的结晶和性能增强机制与功能性纤维素纳米晶体
Ling Yan1, Gaojun Lu1, Somia Yassin Hussain Abdalkarim1
1Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China.
International journal of biological macromolecules
|November 20, 2023
概括
功能化的纤维素纳米晶体 (CNCs) 提高了聚 (丁烯基酸盐-联合甲酸盐) (PBAT) 的性能. 用多二酸盐 (CNC-T) 修改的CNC显著增强PBAT.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 纳米技术 纳米技术
背景情况:
- 聚 (丁烯基酸盐-联合甲酸盐) (PBAT) 呈现缓慢结晶和不良机械性能,限制其在食品包装中的使用.
- 开发增强的PBAT材料对于可持续和高性能包装解决方案至关重要.
研究的目的:
- 使用功能化的纤维素纳米晶体 (CNC) 增强PBAT纳米复合材料的结晶和机械性能.
- 研究用六甲二酸盐 (HMDI) 和多二酸盐 (TDI) 修改的CNC对PBAT的增强作用.
主要方法:
- 使用HMDI和TDI对CNC进行修改,以创建CNC-H和CNC-T.
- 制造PBAT纳米复合材料,包括未经修改的CNC,CNC-H和CNC-T.
- 描述PBAT纳米复合材料的结晶行为和机械性能 (抗拉强度).
主要成果:
- 与TDI (CNC-T) 功能化的CNC与未经修改的CNC和CNC-H相比显示出更高的强化.
- PBAT/5CNC-T复合材料的抗拉强度比纯 PBAT 的强度增加了 34.5%.
- CNC-T表现出最有效的核化能力,显著提高了PBAT结晶.
结论:
- 功能化的CNC,特别是CNC-T,可以有效地提高PBAT的结晶和机械性能.
- 增强的特性归因于CNC-T和PBAT矩阵之间的键和π-π相互作用.
- 这项研究为设计强大的PBAT纳米复合材料提供了洞察力,并为绿色包装应用提供了功能CNC.
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