Development of three dimensional (3D) woven flax/PLA composites with high mechanical and thermal properties using braided yarns

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2024-09-07 DOI:10.1016/j.indcrop.2024.119580

Md Azizul Islam, Md Mazharul Islam, Chunbing Yang, Awoke Fenta Wodag, Ruijie Wang, Wei Chen, Bangze Zhou, Shuo Gao, Fujun Xu

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Abstract

Natural fiber-reinforced polylactic acid (PLA) composites possess renewability, good mechanical properties, and biodegradability. To enhance the mechanical properties of natural fiber-reinforced composites, the flax/PLA braided yarns were woven into three-dimensional orthogonal fabrics with an integrated structure. After the fabrics was hot-pressed, three-dimensional flax/PLA composites with the flax/PLA mass ratios of 50/50 and 25/75 were formed. The results showed that the 50/50 ratio exhibited the higher tensile strength (70.20 MPa) and flexural strength (172.99 MPa), respectively. Thermal analysis indicated its enhanced thermal stability, with the main degradation regions at 354.3°C and 394.7°C. In addition, FTIR spectroscopy showed that the flax/PLA composites exhibited a glass transition temperature of 83.88°C and a melting temperature of 172.89°C. Compared to recent studies, the newly developed three-dimensional orthogonal flax/PLA composites demonstrated superior performance, indicating their potential applications in the field of biodegradable composites, particularly in high-load-bearing applications.

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利用编织纱开发具有高机械和热性能的三维（3D）亚麻/聚乳酸编织复合材料

天然纤维增强聚乳酸（PLA）复合材料具有可再生性、良好的机械性能和生物降解性。为了提高天然纤维增强复合材料的机械性能，亚麻/聚乳酸编织纱被编织成具有一体化结构的三维正交织物。织物经热压后，形成了亚麻/PLA 质量比为 50/50 和 25/75 的三维亚麻/PLA 复合材料。结果表明，50/50 比例的亚麻/PLA 复合材料分别具有较高的拉伸强度（70.20 兆帕）和弯曲强度（172.99 兆帕）。热分析表明其热稳定性增强，主要降解区域为 354.3°C 和 394.7°C。此外，傅立叶变换红外光谱显示，亚麻/聚乳酸复合材料的玻璃化转变温度为 83.88°C，熔化温度为 172.89°C。与最近的研究相比，新开发的三维正交亚麻/聚乳酸复合材料表现出更优越的性能，表明其在生物可降解复合材料领域，尤其是在高承载应用中具有潜在的应用前景。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.

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