Electromagnetic interference shielding properties of PMMA modified-Co0.5Zn0.5Fe2O4 − polyaniline composites

Parthasarathi Bera, R. V. Lakshmi, R. P. S. Chakradhar, Suryasarathi Bose, Harish C. Barshilia
{"title":"Electromagnetic interference shielding properties of PMMA modified-Co0.5Zn0.5Fe2O4 − polyaniline composites","authors":"Parthasarathi Bera,&nbsp;R. V. Lakshmi,&nbsp;R. P. S. Chakradhar,&nbsp;Suryasarathi Bose,&nbsp;Harish C. Barshilia","doi":"10.1186/s42252-024-00059-1","DOIUrl":null,"url":null,"abstract":"<div><p>Present work reports solution combustion synthesis (SCS) of Co<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> spinel ferrite, its chemical modification with polymethylmethacrylate (PMMA), synthesis of polyaniline (PANI), and electromagnetic interference (EMI) shielding properties of their composites. Both as-prepared and PMMA-modified Co<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> adopt cubic spinel structure as shown by X-ray diffraction studies. Field emission scanning electron microscopy images show the agglomerated and microporous nature of the ferrites. High resolution transmission electron microscopy image of as-prepared Co<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> shows lattice fringes related to (311) plane of the spinel structure. X-ray photoelectron spectroscopy studies reveal the presence of Co<sup>2+</sup>, Zn<sup>2+</sup>, and Fe<sup>3+</sup> in tetrahedral and octahedral coordinations in the ferrite. EMI shielding properties are evaluated for PMMA-modified Co<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> and PANI composites in different weight ratios. Composites containing PMMA-modified ferrite and PANI with 50:50 and 10:90 weight ratios show the best performance among all the composites in 2−20 GHz frequency range. Optimized PMMA-modified Co<sub>0.5</sub>Zn<sub>0.5</sub>Fe<sub>2</sub>O<sub>4</sub> and PANI composite with the ratio of 10:90 shows shielding effectiveness (SE) values of −16.6 to −24.2 dB in 2−20 GHz frequency region.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":576,"journal":{"name":"Functional Composite Materials","volume":"5 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://functionalcompositematerials.springeropen.com/counter/pdf/10.1186/s42252-024-00059-1","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Functional Composite Materials","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1186/s42252-024-00059-1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Present work reports solution combustion synthesis (SCS) of Co0.5Zn0.5Fe2O4 spinel ferrite, its chemical modification with polymethylmethacrylate (PMMA), synthesis of polyaniline (PANI), and electromagnetic interference (EMI) shielding properties of their composites. Both as-prepared and PMMA-modified Co0.5Zn0.5Fe2O4 adopt cubic spinel structure as shown by X-ray diffraction studies. Field emission scanning electron microscopy images show the agglomerated and microporous nature of the ferrites. High resolution transmission electron microscopy image of as-prepared Co0.5Zn0.5Fe2O4 shows lattice fringes related to (311) plane of the spinel structure. X-ray photoelectron spectroscopy studies reveal the presence of Co2+, Zn2+, and Fe3+ in tetrahedral and octahedral coordinations in the ferrite. EMI shielding properties are evaluated for PMMA-modified Co0.5Zn0.5Fe2O4 and PANI composites in different weight ratios. Composites containing PMMA-modified ferrite and PANI with 50:50 and 10:90 weight ratios show the best performance among all the composites in 2−20 GHz frequency range. Optimized PMMA-modified Co0.5Zn0.5Fe2O4 and PANI composite with the ratio of 10:90 shows shielding effectiveness (SE) values of −16.6 to −24.2 dB in 2−20 GHz frequency region.

Graphical Abstract

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
PMMA 改性-Co0.5Zn0.5Fe2O4-聚苯胺复合材料的电磁干扰屏蔽性能
本研究报告介绍了溶液燃烧合成(SCS)Co0.5Zn0.5Fe2O4 尖晶石铁氧体、用聚甲基丙烯酸甲酯(PMMA)对其进行化学改性、合成聚苯胺(PANI)及其复合材料的电磁干扰(EMI)屏蔽性能。X 射线衍射研究表明,原制备的和经 PMMA 改性的 Co0.5Zn0.5Fe2O4 都具有立方尖晶石结构。场发射扫描电子显微镜图像显示了铁氧体的团聚和微孔性质。制备的 Co0.5Zn0.5Fe2O4 的高分辨率透射电子显微镜图像显示了与尖晶石结构的(311)面有关的晶格条纹。X 射线光电子能谱研究显示,铁氧体中存在四面体和八面体配位的 Co2+、Zn2+ 和 Fe3+。对不同重量比的 PMMA 改性 Co0.5Zn0.5Fe2O4 和 PANI 复合材料的 EMI 屏蔽性能进行了评估。在 2-20 GHz 频率范围内,含有 PMMA 改性铁氧体和 PANI(重量比分别为 50:50 和 10:90)的复合材料在所有复合材料中表现出最佳性能。优化的 PMMA 改性 Co0.5Zn0.5Fe2O4 和 PANI 复合材料的重量比为 10:90,在 2-20 GHz 频率范围内显示出 -16.6 至 -24.2 dB 的屏蔽效能(SE)值。
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 去求助
来源期刊
自引率
0.00%
发文量
0
期刊介绍:
期刊最新文献
Simulation-based assessment of zwitterionic pendant group variations on the hemocompatibility of polyethersulfone membranes In-line NIR coupled with machine learning to predict mechanical properties and dissolution profile of PLA-Aspirin A brief review on electrospun polymer derived carbon fibers for EMI shielding applications Electromagnetic interference shielding properties of PMMA modified-Co0.5Zn0.5Fe2O4 − polyaniline composites Enhancing waste asphalt durability through cold recycling and additive integration
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1