Properties of kenaf fiber-reinforced polyamide 6 composites

IF 3.2 3区 化学 Q2 POLYMER SCIENCE
e-Polymers Pub Date : 2024-03-26 DOI:10.1515/epoly-2022-8112
Norihan Abdullah, Khalina Abdan, Muhammad Huzaifah Mohd Roslim, Mohd Nazren Radzuan, Ayu Rafiqah Shafi, Lee Ching Hao
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引用次数: 0

Abstract

Despite the increasing interest in polyamide-based composites, few studies on polyamide-based natural fiber composites have been conducted due to their high melting temperatures of polyamide 6 (PA6). In this study, kenaf fiber-reinforced polyamide 6 composites (KF/PA6) were successfully prepared and their properties were investigated. Thermogravimetric analysis demonstrated that the neat PA6 has higher thermal stability with higher melting temperatures of 426°C, respectively, than KF/PA6 composites. The results of the differential scanning calorimeter showed that the glass transition temperature (T g) of KF/PA6 composites was slightly shifted to a higher temperature at 59°C than that of the neat PA6 at 45°C. The thermal and mechanical characteristics using dynamic mechanical analysis results showed that the storage and loss modulus of the neat PA6 were higher than those of KF/PA6 composites. The neat PA6 showed the maximum tensile strength of 48 MPa; however, the maximum tensile modulus was obtained at 10 wt% KF with 2,100 MPa. The flexural strength and modulus of the neat PA6 were 91 and 2,506 MPa, respectively, which were higher than those of KF/PA6 composites. The impact strength also deteriorated with the addition of KF, from 3.72 to 1.91 kJ·m−2. Voids, fiber pulled-out, and agglomeration were observed in scanning electron microscope analysis on the tensile fractured surfaces.
槿麻纤维增强聚酰胺 6 复合材料的性能
尽管人们对聚酰胺基复合材料的兴趣与日俱增,但由于聚酰胺 6(PA6)的熔融温度较高,有关聚酰胺基天然纤维复合材料的研究却寥寥无几。本研究成功制备了剑麻纤维增强聚酰胺 6 复合材料(KF/PA6),并对其性能进行了研究。热重分析表明,与 KF/PA6 复合材料相比,纯 PA6 具有更高的热稳定性,熔化温度分别高达 426°C。差示扫描量热仪的结果表明,KF/PA6 复合材料的玻璃化转变温度(T g)略微偏高,为 59°C,高于纯 PA6 的 45°C。利用动态力学分析法进行的热和力学特性分析结果表明,纯 PA6 的储存模量和损失模量均高于 KF/PA6 复合材料。纯 PA6 的最大拉伸强度为 48 兆帕;然而,10 wt% KF 的最大拉伸模量为 2,100 兆帕。纯 PA6 的抗弯强度和模量分别为 91 和 2,506 兆帕,均高于 KF/PA6 复合材料。冲击强度也随着 KF 的添加而降低,从 3.72 kJ-m-2 降至 1.91 kJ-m-2。在拉伸断裂表面的扫描电子显微镜分析中观察到了空洞、纤维拔出和团聚现象。
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来源期刊
e-Polymers
e-Polymers 化学-高分子科学
CiteScore
5.90
自引率
10.80%
发文量
64
审稿时长
6.4 months
期刊介绍: e-Polymers is a strictly peer-reviewed scientific journal. The aim of e-Polymers is to publish pure and applied polymer-science-related original research articles, reviews, and feature articles. It includes synthetic methodologies, characterization, and processing techniques for polymer materials. Reports on interdisciplinary polymer science and on applications of polymers in all areas are welcome. The present Editors-in-Chief would like to thank the authors, the reviewers, the editorial staff, the advisory board, and the supporting organization that made e-Polymers a successful and sustainable scientific journal of the polymer community. The Editors of e-Polymers feel very much engaged to provide best publishing services at the highest possible level.
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