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Materials 2017, 10(4), 339; doi:10.3390/ma10040339

Development and Application of Wood Flour-Filled Polylactic Acid Composite Filament for 3D Printing

1
College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
2
Denton High School, Denton, TX 76203, USA
3
Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX 76203, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Walter Remo Caseri
Received: 12 February 2017 / Revised: 4 March 2017 / Accepted: 21 March 2017 / Published: 24 March 2017
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Abstract

This paper presents the development of wood flour (WF)-filled polylactic acid (PLA) composite filaments for a fused deposition modeling (FDM) process with the aim of application to 3D printing. The composite filament consists of wood flour (5 wt %) in a PLA matrix. The detailed formulation and characterization of the composite filament were investigated experimentally, including tensile properties, microstructure, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The feedstock filaments of this composite were produced and used successfully in an assembled FDM 3D printer. The research concludes that compared with pure PLA filament, adding WF changed the microstructure of material fracture surface, the initial deformation resistance of the composite was enhanced, the starting thermal degradation temperature of the composite decreased slightly, and there were no effects on the melting temperature. The WF/PLA composite filament is suitable to be printed by the FDM process. View Full-Text
Keywords: wood flour; polylactic acid; composite filament; 3D printing; fused deposition modeling wood flour; polylactic acid; composite filament; 3D printing; fused deposition modeling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tao, Y.; Wang, H.; Li, Z.; Li, P.; Shi, S.Q. Development and Application of Wood Flour-Filled Polylactic Acid Composite Filament for 3D Printing. Materials 2017, 10, 339.

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