熔融沉积法制备纤维素纳米纤维增强聚乳酸基复合材料的拉伸性能（英文）

被引：4

作者：

KURITA Hiroki ^{[1
]}

BERNARD Chrystelle ^{[2
,3
]}

LAVROVSKY Agathe ^{[4
]}

NARITA Fumio ^{[1
]}

机构：

[1] 东北大学先进环境前沿科技系环境科学研究生院

[2] 东北大学交叉学科前沿研究所

[3] CNRS-里昂大学-东北大学ELyTMaX

来源：

TransactionsofNanjingUniversityofAeronauticsandAstronautics | 2021年 / 38卷 / 01期

关键词：

纤维素纳米纤维; 聚乳酸; 拉伸性能; 熔融沉积制备;

D O I：

10.16356/j.1005-1120.2021.01.006

中图分类号：

TQ323.4 [聚酯树脂及塑料]; TB332 [非金属复合材料];

学科分类号：

摘要：

生物可降解聚合物可以在保持结构力学性能的同时可以实现碳中性,是石油基聚合物的潜在替代品。在这些聚合物中,聚乳酸(Polylactic acid,PLA)因其良好的力学性能、生物相容性和热塑性而特别有发展前景。本文利用机械脱脂纤维素纳米纤维(Cellulose nanofiber,CNF)来提高聚乳酸的力学性能,该纤维具有显著的力学性能和生物降解性。熔融沉积建模(Fused deposition modeling,FDM)是热塑性聚合物的三维打印方法之一,可以降低制造成本。本研究采用FDM法制备了机械脱脂CNF增强PLA基复合材料,并在两个打印方向(0°/90°和+45°/-45°)上研究了它们的拉伸性能,梳理了机械制备CNF增强PLA基复合材料的印刷方向与拉伸行为之间的关系。此外,利用扫描电镜研究了机械脱脂CNF增强PLA基复合材料的显微组织和断口。

引用

页码：68 / 74

页数：7

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