桑琳

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副研究员

博士生导师

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:材料科学与工程学院

学科:车辆工程. 材料学. 高分子材料. 材料加工工程

办公地点:汽车学院东山实验室
A303

电子邮箱:sanglin@dlut.edu.cn

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Development of short basalt fiber reinforced polylactide composites and their feasible evaluation for 3D printing applications

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论文类型:期刊论文

第一作者:Sang, Lin

通讯作者:Sang, L; Hou, WB (reprint author), Dalian Univ Technol, Sch Automot Engn, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China.

合写作者:Han, Shuangfeng,Li, Zhipeng,Yang, Xiaoli,Hou, Wenbin

发表时间:2019-05-01

发表刊物:COMPOSITES PART B-ENGINEERING

收录刊物:EI、SCIE

卷号:164

页面范围:629-639

ISSN号:1359-8368

关键字:Basalt fiber; Composite filaments; Mechanical properties; 3D printing

摘要:The objective of this work is to develop KH550-treated basalt fiber (KBF) reinforced polylactide (PLA) composite as a potential 3D-printed feedstock. Herein, physical (thermal, mechanical, and rheological) properties and the feasibility of PLA/KBF for 3D printing are investigated. KBF is found to be oriented-dispersed along the printing direction in printed specimen, in contrast with randomly-distributed KBF in casting counterparts. Mechanical tests, rheological behavior and microstructure observation of PLA/KBF filaments are performed to compare with carbon fiber (CF) reinforced counterparts with the same fiber weight fraction. The results suggest that PLA/KBF exhibit comparable tensile properties and superior flexural properties to those of PLA/CF control, which can be attributed to high complex viscosity of PLA/CF affecting the interlayer adhesion. Furthermore, the printing feasibility of PLA/KBF filaments are evaluated. With increasing fiber length and weight fraction of KBF, low infill and micro-defects are shown in CT scans, which explain the deterioration in mechanical performance. The present work proves PLA/KBF as a mechanical-improved and low-cost feedstock for 3D printing applications in complex design and variable sizes.