南京航空航天大学学报（英文版）2021，Vol.38Issue(1)：68-74,7.
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
Tensile Properties of Mechanically-Defibrated Cellulose Nanofiber-Reinforced Polylactic Acid Matrix Composites Fabricated by Fused Deposition Modeling
摘要
Abstract
Biodegradable polymers are highly attractive as potential alternatives to petroleum-based polymers in an attempt to achieve carbon neutrality whilst maintaining the mechanical properties of the structures. Among these polymers,polylactic acid(PLA)is particularly promising due to its good mechanical properties,biocompatibility and thermoplasticity. In this work,we aim to enhance the mechanical properties of PLA using mechanically-defibrated cellulose nanofibers (CNFs) that exhibit remarkable mechanical properties and biodegradability. We also employ fused deposition modeling(FDM),one of the three-dimensional printing methods for thermoplastic polymers,for the low-cost fabrication of the products. Mechanically-defibrated CNF-reinforced PLA matrix composites are fabricated by FDM. Their tensile properties are investigated in two printing directions(0°/90° and+45°/?45°). The discussion about the relationship between printing direction and tensile behavoir of mechanically-defibrated CNF-reinforced PLA matrix composite is the unique point of this study. We further discuss the microstructure and fracture surface of mechanically-defibrated CNF-reinforced PLA matrix composite by scanning electron microscope.关键词
纤维素纳米纤维/聚乳酸/拉伸性能/熔融沉积制备Key words
cellulose nanofiber(CNF)/polylactic acid(PLA)/tensile property/fused deposition modeling分类
医药卫生引用本文复制引用
KURITA Hiroki,BERNARD Chrystelle,LAVROVSKY Agathe,NARITA Fumio..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[J].南京航空航天大学学报（英文版）,2021,38(1):68-74,7.基金项目
Acknowledgement This work was supported by the Pro?gram for Creation of Interdisciplinary Research and Ensem?ble Program of Frontier Research Institute for Interdisciplin?ary Sciences,Tohoku University. （）
