Investigations on the mechanical properties of PLA/Flax fibre composites obtained by Fused Filament Fabrication

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-08-10 DOI:10.1080/14658011.2022.2110554

H. Ramezani Dana, M. El Mansori

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引用次数: 3

Abstract

ABSTRACT The additive manufacturing technique has been used more and more recently because of the advantages it offers, in particular in terms of the geometrical complexity of the produced parts. Recently, researchers are increasingly interested in flax fibres as a natural reinforcing for polymer-based filaments manufactured via the Fused Filament Fabrication (FFF) method, allowing their mechanical properties to be improved compared to the pure polymer. The mechanical properties of flax fibre-reinforced polylactic acid composite, obtained by the FFF process, are nevertheless not well known. The purpose of this study is to characterise the effect of manufacturing conditions as feed rate, build orientations, and layer thickness on the mechanical performance of PLA/Flax fibre composite. The mechanical characteristics of the materials were explored at the part scale considered as macroscopic scale and at the filament scale considered as mesoscopic scale. Microstructural analyses are performed to reveal the rupture mechanism at the microscopic scale.

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熔融长丝法制备PLA/亚麻纤维复合材料的力学性能研究

增材制造技术由于其提供的优势，特别是在生产零件的几何复杂性方面，已经越来越多地使用。最近，研究人员对亚麻纤维作为通过熔融长丝制造(FFF)方法制造的聚合物基长丝的天然增强材料越来越感兴趣，与纯聚合物相比，亚麻纤维的机械性能得到了改善。然而，用FFF法得到的亚麻纤维增强聚乳酸复合材料的力学性能尚不清楚。本研究的目的是表征进料速率、构建方向和层厚等制造条件对PLA/亚麻纤维复合材料机械性能的影响。以宏观尺度的局部尺度和细观尺度的细丝尺度考察了材料的力学特性。显微组织分析揭示了微观尺度上的断裂机制。

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来源期刊

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.