Dielectric material preparation from pineapple leaf fiber based on two-level factorial analysis and its morphological structure

IF 0.9 4区 工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY Journal of Engineering Research Pub Date : 2024-06-01 DOI:10.1016/j.jer.2023.11.022
M.S. Abdul Karim , N. Zainol , N.H. Aziz , N.S. Mat Hussain , N.A.T. Yusof
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Abstract

Natural fiber has earned great attention for its discovery as a green material in dielectric composites. Their excellent dielectric properties have granted them the great capability to be used in high dielectric composites. Hence, this study attempts to determine the most influential factor contributing to the permittivity of pineapple leaf fibers and to examine the morphological structure of the developed fibers. The two-level factorial analysis was applied to determine the significant, influential factors and the best conditions contributing to the permittivity value of fiber. The factors include the pineapple leaf-to-soda ratio (1:5 and 1:10), soda concentration (5–10 wt%), temperature (60–100 ℃), and pulping time (45–75 min). The fiber was extracted from the pineapple leaf through the soda pulping method, and the content was analyzed by the Kurschner-Hanack method. Based on the analysis, the pineapple leaf-to-soda ratio was observed as the most significant factor contributing to the permittivity value of fiber, with an 8.86% contribution. The best conditions were suggested at a 1:10 pineapple leaf-to-soda ratio, 5 wt% soda concentration, 100 ℃ temperature, and 45 min of pulping time, contributing to the 1.85 permittivity value of pineapple leaf fiber. The scanning electron microscope images of the material under test indicate that the morphological structures play a crucial part in determining the permittivity value of fiber. Therefore, with suitable processing factors, pineapple leaf fiber can be a great dielectric material used in many engineering applications.

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基于两级因子分析的菠萝叶纤维介电材料制备及其形态结构
天然纤维作为介电复合材料中的一种绿色材料,已经赢得了极大的关注。其优异的介电性能使其具备了在高介电复合材料中使用的巨大能力。因此,本研究试图确定对菠萝叶纤维的介电系数影响最大的因素,并考察所开发纤维的形态结构。本研究采用两级因子分析来确定对纤维介电常数值有影响的重要因素和最佳条件。这些因素包括菠萝叶与苏打的比例(1:5 和 1:10)、苏打浓度(5-10 wt%)、温度(60-100 ℃)和打浆时间(45-75 分钟)。通过苏打打浆法从菠萝叶中提取纤维,并用 Kurschner-Hanack 法分析纤维含量。分析结果表明,菠萝叶与苏打的比率是影响纤维介电常数值的最重要因素,占 8.86%。最佳条件为菠萝叶与苏打比例为 1:10、苏打浓度为 5 wt%、温度为 100 ℃、打浆时间为 45 分钟,菠萝叶纤维的介电常数值为 1.85。被测材料的扫描电子显微镜图像表明,形态结构对决定纤维的介电常数值起着至关重要的作用。因此,如果加工因素合适,菠萝叶纤维可以成为一种很好的介电材料,应用于许多工程领域。
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来源期刊
Journal of Engineering Research
Journal of Engineering Research ENGINEERING, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
10.00%
发文量
181
审稿时长
20 weeks
期刊介绍: Journal of Engineering Research (JER) is a international, peer reviewed journal which publishes full length original research papers, reviews, case studies related to all areas of Engineering such as: Civil, Mechanical, Industrial, Electrical, Computer, Chemical, Petroleum, Aerospace, Architectural, Biomedical, Coastal, Environmental, Marine & Ocean, Metallurgical & Materials, software, Surveying, Systems and Manufacturing Engineering. In particular, JER focuses on innovative approaches and methods that contribute to solving the environmental and manufacturing problems, which exist primarily in the Arabian Gulf region and the Middle East countries. Kuwait University used to publish the Journal "Kuwait Journal of Science and Engineering" (ISSN: 1024-8684), which included Science and Engineering articles since 1974. In 2011 the decision was taken to split KJSE into two independent Journals - "Journal of Engineering Research "(JER) and "Kuwait Journal of Science" (KJS).
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