Electromagnetic interference shielding behavior of flexible PVA composite made using betel nut husk biocarbon and steel microwire in E, F, I, and J band spectrum

IF 3.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Journal of Vinyl & Additive Technology Pub Date : 2024-08-21 DOI:10.1002/vnl.22138

K. Somasundaram, G. S. Uthayakumar, B. R. Tapas Bapu, Muruganantham Ponnusamy

{"title":"Electromagnetic interference shielding behavior of flexible PVA composite made using betel nut husk biocarbon and steel microwire in E, F, I, and J band spectrum","authors":"K. Somasundaram, G. S. Uthayakumar, B. R. Tapas Bapu, Muruganantham Ponnusamy","doi":"10.1002/vnl.22138","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>This study investigates the electromagnetic interference (EMI) shielding behavior of a flexible polyvinyl alcohol (PVA) composite fabricated using betel nut husk biocarbon and steel microwire in the E, F, I, and J band spectrum. The incorporation of steel microwire into the PVA based composite is novel approach since it provides flexibility along with good mechanical strength. The fabrication process involves the solution casting method, and the composite is characterized according to American society of testing and materials (ASTM) standards. The research focuses on analyzing dielectric behavior, EMI shielding effectiveness, and mechanical properties. Results indicates that, the composite with 5 vol.% of biocarbon and 5 vol.% of micro metal wire, exhibits exceptional relative permittivity of 7.6, 6.9, 6.3, and 1.5 for E, F, I, and J frequency bands and same composition delivers exceptional electromagnetic shielding with total shielding values of 17.7 dB, 25.5 dB, 31.7 dB, and 38.6 dB for E, F, I, and J frequency bands. In mechanical characteristics, composite with 5 vol.% of biocarbon and 5 vol.% of micro metal wire, exhibits high tensile strength of 73 MPa with lower elongation percentage of 109.2% and shore-D hardness of 40, respectively. Thus, the inclusion of betel nut husk biocarbon and steel microwire into the PVA matrix enhanced the overall EMI shielding properties along with mechanical properties. These flexible EMI shielding composites could be used in applications such as defense, telecommunication, drones, and electronic gadget making segments.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Flexible polyvinyl alcohol (PVA) composite is made with steel microwire and betel nut husk biocarbon.</li>\n \n <li>Biocarbon is derived from betel nut husk for first time and used as EM wave absorber.</li>\n \n <li>Composites were made via simple solution casting method for high flexibility index.</li>\n \n <li>Composite contains 5 vol.% biocarbon and 5 vol.% micro metal wire, shows high relative permittivity 7.6 for E frequency bands.</li>\n \n <li>The composites have high tensile strength of 73 MPa with a low elongation percentage of 109.2% and a shore-D hardness of 40.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 6","pages":"1545-1555"},"PeriodicalIF":3.8000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22138","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

This study investigates the electromagnetic interference (EMI) shielding behavior of a flexible polyvinyl alcohol (PVA) composite fabricated using betel nut husk biocarbon and steel microwire in the E, F, I, and J band spectrum. The incorporation of steel microwire into the PVA based composite is novel approach since it provides flexibility along with good mechanical strength. The fabrication process involves the solution casting method, and the composite is characterized according to American society of testing and materials (ASTM) standards. The research focuses on analyzing dielectric behavior, EMI shielding effectiveness, and mechanical properties. Results indicates that, the composite with 5 vol.% of biocarbon and 5 vol.% of micro metal wire, exhibits exceptional relative permittivity of 7.6, 6.9, 6.3, and 1.5 for E, F, I, and J frequency bands and same composition delivers exceptional electromagnetic shielding with total shielding values of 17.7 dB, 25.5 dB, 31.7 dB, and 38.6 dB for E, F, I, and J frequency bands. In mechanical characteristics, composite with 5 vol.% of biocarbon and 5 vol.% of micro metal wire, exhibits high tensile strength of 73 MPa with lower elongation percentage of 109.2% and shore-D hardness of 40, respectively. Thus, the inclusion of betel nut husk biocarbon and steel microwire into the PVA matrix enhanced the overall EMI shielding properties along with mechanical properties. These flexible EMI shielding composites could be used in applications such as defense, telecommunication, drones, and electronic gadget making segments.

Highlights

Flexible polyvinyl alcohol (PVA) composite is made with steel microwire and betel nut husk biocarbon.
Biocarbon is derived from betel nut husk for first time and used as EM wave absorber.
Composites were made via simple solution casting method for high flexibility index.
Composite contains 5 vol.% biocarbon and 5 vol.% micro metal wire, shows high relative permittivity 7.6 for E frequency bands.
The composites have high tensile strength of 73 MPa with a low elongation percentage of 109.2% and a shore-D hardness of 40.

Abstract Image

查看原文本刊更多论文

使用槟榔壳生物碳和微钢丝制成的柔性 PVA 复合材料在 E、F、I 和 J 波段频谱中的电磁干扰屏蔽行为

本研究调查了使用槟榔壳生物碳和微钢丝制造的柔性聚乙烯醇（PVA）复合材料在 E、F、I 和 J 波段频谱中的电磁干扰（EMI）屏蔽行为。在基于 PVA 的复合材料中加入微钢丝是一种新颖的方法，因为它在提供柔韧性的同时还具有良好的机械强度。制造过程采用溶液浇铸法，复合材料的特性符合美国材料试验协会（ASTM）的标准。研究重点是分析介电行为、EMI 屏蔽效果和机械性能。结果表明，含有 5 Vol.% 生物碳和 5 Vol.% 微金属丝的复合材料在 E、F、I 和 J 频段的相对介电率分别为 7.6、6.9、6.3 和 1.5，具有优异的电磁屏蔽性能，在 E、F、I 和 J 频段的总屏蔽值分别为 17.7 dB、25.5 dB、31.7 dB 和 38.6 dB。在机械特性方面，含有 5 Vol.% 生物碳和 5 Vol.% 微金属丝的复合材料的拉伸强度高达 73 兆帕，伸长率较低，为 109.2%，邵氏硬度为 40。因此，在 PVA 基体中加入槟榔壳生物碳和微钢丝可提高整体的电磁干扰屏蔽性能和机械性能。这些柔性电磁干扰屏蔽复合材料可用于国防、电信、无人机和电子设备制造等领域。亮点柔性聚乙烯醇（PVA）复合材料是用微钢丝和槟榔壳生物碳制成的。生物碳首次从槟榔壳中提取并用作电磁波吸收剂。复合材料通过简单的溶液浇铸法制成，具有较高的柔韧性指数。复合材料含有 5 Vol.% 的生物碳和 5 Vol.% 的微型金属丝，在 E 频段显示出 7.6 的高相对介电常数。复合材料的抗拉强度高达 73 兆帕，伸长率低至 109.2%，邵氏硬度为 40。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Vinyl & Additive Technology 工程技术-材料科学：纺织

CiteScore

5.40

自引率

14.80%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.