Ramie Fiber-Reinforced Polylactic-Acid Prepreg: Fabrication and Characterization of Unidirectional and Bidirectional Laminates

IF 1.4 4区管理学 Q2 ENGINEERING, MULTIDISCIPLINARY

International Journal of Technology Management Pub Date : 2023-06-28 DOI:10.14716/ijtech.v14i4.5940

T. Soemardi, O. Polit, Fanya Salsabila, Ardy Lololau

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引用次数: 0

Abstract

. The fabrication of a natural prepreg with poly-lactic acid (PLA) matrix and ramie fiber reinforcement was engineered on a laboratory scale by impregnating the unidirectional and bidirectional ramie fiber with PLA matrix solvent on a glass die. The obtained composite prepreg has been stored at a very low temperature to maximize its shelf life. Tensile and biodegradability tests of the composite laminates prepared by the hot-pressing method have also been conducted. Tensile test results show that the freezer-stored bidirectional 0/90° prepreg laminate specimen has the highest tensile strength of 71.44 MPa with a modulus of 2.70 GPa on average. Meanwhile, the unstored bidirectional 0/90° prepreg laminate specimen has the highest level of elasticity, with a modulus of 1.29 GPa on average. The biodegradability test shows the decomposition process of the composite laminate under actual composting conditions. Microscopic observation of the damaged specimen results shows good adhesion between the PLA matrix and ramie fiber and the decomposition of the biodegradability test samples.

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苎麻纤维增强聚乳酸预浸料:单向和双向层压板的制备与表征

．在实验室规模上，将聚乳酸(PLA)基体和苎麻纤维增强剂在玻璃模具上浸渍单向和双向苎麻纤维，制备了聚乳酸(PLA)基天然预浸料。所得到的复合预浸料在非常低的温度下储存，以最大限度地延长其保质期。对热压法制备的复合材料层压板进行了拉伸试验和生物降解试验。拉伸试验结果表明:冷库双向0/90°预浸层合板试样抗拉强度最高，为71.44 MPa，平均模量为2.70 GPa;同时，未储存的双向0/90°预浸层压试样的弹性水平最高，平均模量为1.29 GPa。生物降解性试验显示了复合层压板在实际堆肥条件下的分解过程。显微观察损伤试样结果表明，PLA基体与苎麻纤维粘附良好，降解性测试试样分解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Technology Management 管理科学-工程：综合

CiteScore

2.70

自引率

3.60%

发文量

审稿时长

6-12 weeks

期刊介绍： The IJTM aims to provide a refereed and authoritative source of information in the field of managing with technology, and the management of engineering, science and technology. It seeks to establish channels of communication between government departments, technology executives in industry, commerce and related business, and academic experts in the field.