Mechanical and thermal study of 3D printing composite filaments from wind turbine waste

被引:33
作者
Rahimizadeh, Amirmohammad [1 ]
Kalman, Jordan [2 ]
Fayazbakhsh, Kazem [2 ]
Lessard, Larry [1 ]
机构
[1] McGill Univ, Dept Mech Engn, Montreal, PQ, Canada
[2] Ryerson Univ, Dept Aerosp Engn, Toronto, ON M5B 2K3, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
3D printing; fused filament fabrication; recycling; short fiber composites; tensile properties;
D O I
10.1002/pc.25978
中图分类号
TB33 [复合材料];
学科分类号
摘要
The subject of composite waste from the wind turbine blades has become more serious and challenging. Inspired by the recent popularity of the 3D printing industry, this work presents a step-by-step recycling solution to manufacture fiber reinforced filaments for fused filament fabrication. Polylactic acid filaments reinforced with 3, 5, and 10 wt% recyclate content are manufactured and tested using thermogravimetric analysis (TGA), and micro computed tomography (mu CT). TGA results elucidate that an increase in the recyclate content translates into a reduction in the mean fiber length. Visualizing mu CT results, it is confirmed that fibers are predominantly aligned along the filament length. Tensile specimens per ASTM D636 standard are manufactured and tested with results showing an improvement of, respectively, 20% and 28% in the specific tensile strength and modulus compared with pure PLA samples. The mechanical performance of the newly introduced recycled parts is also assessed through a coherent set of theoretical models, where an excellent agreement between the experiments and predictions is observed.
引用
收藏
页码:2305 / 2316
页数:12
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