基于MWCNTs@TiO2构建PAM/PEG电磁屏蔽水凝胶

IF 8.2 2区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Teng Zhou , Daohai Zhang , Kunlan Diao , Jiajia Du , Yupeng Hu , Zhi Lei , Dongju Liu , Shan Liu , Shuhao Qin
{"title":"基于MWCNTs@TiO2构建PAM/PEG电磁屏蔽水凝胶","authors":"Teng Zhou ,&nbsp;Daohai Zhang ,&nbsp;Kunlan Diao ,&nbsp;Jiajia Du ,&nbsp;Yupeng Hu ,&nbsp;Zhi Lei ,&nbsp;Dongju Liu ,&nbsp;Shan Liu ,&nbsp;Shuhao Qin","doi":"10.1016/j.mtnano.2025.100606","DOIUrl":null,"url":null,"abstract":"<div><div>With the widespread popularity of digital technology, electromagnetic interference(EMI) has become a new type of pollution that endangers electronic equipment and biological systems. In this paper, MWCNTs@TiO<sub>2</sub> composite materials were prepared by the hydrothermal synthesis method and then added into the three dimensional framework constructed by PAM (polyacrylamide) and PEG (polyethylene glycol) to obtain hydrogels with EMI functionality. It was found that in the M@T/PAM-4 (MWCNTs@TiO<sub>2</sub>/PAM-4) hydrogel, due to the fact that TiO<sub>2</sub> particles were loaded on the surface of MWCNTs, its cross section presented a granular shape. As the content of MWCNTs increased, the EMI SE<sub>T</sub> of the hydrogel increased, with the M@T/PAM-4 hydrogel reaching 29 dB. The electrical conductivity and mechanical properties also increased accordingly. Compared with the pure PAM hydrogel, they were respectively improved by 626 % and 24.5 %, which was attributed to the formation of a conductive network by MWCNTs and the enhancement of interfacial polarization, etc. Meanwhile, the water retention rate of the M@T/PAM-4 hydrogel could still reach 34.1 % after 8 h. Moreover, it also had a relatively high water content of 69.08 %. Therefore, This improves the application value and development prospects of the hydrogel in fields such as Electromagnetic (EM) shielding.</div></div>","PeriodicalId":48517,"journal":{"name":"Materials Today Nano","volume":"29 ","pages":"Article 100606"},"PeriodicalIF":8.2000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Constructing PAM/PEG electromagnetic shielding hydrogels based on MWCNTs@TiO2\",\"authors\":\"Teng Zhou ,&nbsp;Daohai Zhang ,&nbsp;Kunlan Diao ,&nbsp;Jiajia Du ,&nbsp;Yupeng Hu ,&nbsp;Zhi Lei ,&nbsp;Dongju Liu ,&nbsp;Shan Liu ,&nbsp;Shuhao Qin\",\"doi\":\"10.1016/j.mtnano.2025.100606\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>With the widespread popularity of digital technology, electromagnetic interference(EMI) has become a new type of pollution that endangers electronic equipment and biological systems. In this paper, MWCNTs@TiO<sub>2</sub> composite materials were prepared by the hydrothermal synthesis method and then added into the three dimensional framework constructed by PAM (polyacrylamide) and PEG (polyethylene glycol) to obtain hydrogels with EMI functionality. It was found that in the M@T/PAM-4 (MWCNTs@TiO<sub>2</sub>/PAM-4) hydrogel, due to the fact that TiO<sub>2</sub> particles were loaded on the surface of MWCNTs, its cross section presented a granular shape. As the content of MWCNTs increased, the EMI SE<sub>T</sub> of the hydrogel increased, with the M@T/PAM-4 hydrogel reaching 29 dB. The electrical conductivity and mechanical properties also increased accordingly. Compared with the pure PAM hydrogel, they were respectively improved by 626 % and 24.5 %, which was attributed to the formation of a conductive network by MWCNTs and the enhancement of interfacial polarization, etc. Meanwhile, the water retention rate of the M@T/PAM-4 hydrogel could still reach 34.1 % after 8 h. Moreover, it also had a relatively high water content of 69.08 %. Therefore, This improves the application value and development prospects of the hydrogel in fields such as Electromagnetic (EM) shielding.</div></div>\",\"PeriodicalId\":48517,\"journal\":{\"name\":\"Materials Today Nano\",\"volume\":\"29 \",\"pages\":\"Article 100606\"},\"PeriodicalIF\":8.2000,\"publicationDate\":\"2025-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Today Nano\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2588842025000379\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Today Nano","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2588842025000379","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

摘要

随着数字技术的广泛普及,电磁干扰已成为危害电子设备和生物系统的一种新型污染。本文采用水热合成法制备MWCNTs@TiO2复合材料,并将其加入到PAM(聚丙烯酰胺)和PEG(聚乙二醇)构建的三维框架中,得到具有EMI功能的水凝胶。研究发现,在M@T/PAM-4 (MWCNTs@TiO2/PAM-4)水凝胶中,由于TiO2颗粒被负载在MWCNTs表面,其横截面呈现颗粒状。随着MWCNTs含量的增加,水凝胶的EMI SET也随之增加,M@T/PAM-4水凝胶的EMI SET达到29 dB。电导率和机械性能也相应提高。与纯PAM水凝胶相比,它们的性能分别提高了626%和24.5%,这主要归功于MWCNTs形成导电网络和界面极化增强等。同时,M@T/PAM-4水凝胶在8 h后的保水率仍可达34.1%,含水量也较高,达到69.08%。从而提高了水凝胶在电磁屏蔽等领域的应用价值和发展前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Constructing PAM/PEG electromagnetic shielding hydrogels based on MWCNTs@TiO2

Constructing PAM/PEG electromagnetic shielding hydrogels based on MWCNTs@TiO2
With the widespread popularity of digital technology, electromagnetic interference(EMI) has become a new type of pollution that endangers electronic equipment and biological systems. In this paper, MWCNTs@TiO2 composite materials were prepared by the hydrothermal synthesis method and then added into the three dimensional framework constructed by PAM (polyacrylamide) and PEG (polyethylene glycol) to obtain hydrogels with EMI functionality. It was found that in the M@T/PAM-4 (MWCNTs@TiO2/PAM-4) hydrogel, due to the fact that TiO2 particles were loaded on the surface of MWCNTs, its cross section presented a granular shape. As the content of MWCNTs increased, the EMI SET of the hydrogel increased, with the M@T/PAM-4 hydrogel reaching 29 dB. The electrical conductivity and mechanical properties also increased accordingly. Compared with the pure PAM hydrogel, they were respectively improved by 626 % and 24.5 %, which was attributed to the formation of a conductive network by MWCNTs and the enhancement of interfacial polarization, etc. Meanwhile, the water retention rate of the M@T/PAM-4 hydrogel could still reach 34.1 % after 8 h. Moreover, it also had a relatively high water content of 69.08 %. Therefore, This improves the application value and development prospects of the hydrogel in fields such as Electromagnetic (EM) shielding.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
11.30
自引率
3.90%
发文量
130
审稿时长
31 days
期刊介绍: Materials Today Nano is a multidisciplinary journal dedicated to nanoscience and nanotechnology. The journal aims to showcase the latest advances in nanoscience and provide a platform for discussing new concepts and applications. With rigorous peer review, rapid decisions, and high visibility, Materials Today Nano offers authors the opportunity to publish comprehensive articles, short communications, and reviews on a wide range of topics in nanoscience. The editors welcome comprehensive articles, short communications and reviews on topics including but not limited to: Nanoscale synthesis and assembly Nanoscale characterization Nanoscale fabrication Nanoelectronics and molecular electronics Nanomedicine Nanomechanics Nanosensors Nanophotonics Nanocomposites
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信