Kunlan Diao, Teng Zhou, Jiajia Du, Yuhuan Xu and Daohai Zhang
{"title":"Preparation of high-toughness PAM-Gel/CNTs-RGO hydrogel and its electromagnetic shielding properties†","authors":"Kunlan Diao, Teng Zhou, Jiajia Du, Yuhuan Xu and Daohai Zhang","doi":"10.1039/D4NJ03558E","DOIUrl":null,"url":null,"abstract":"<p >With the rapid development of the electromagnetic (EMI) industry, EMI pollution has become a serious problem. In this work, the effect of filler content on electromagnetic shielding performance was studied by heat-induced polymerization of acrylamide (AM) and gelatin (Gel) to form double-mesh hydrogel (PAM-Gel), and then, different contents of carbon nanotubes (CNTs) and reduced graphene oxide (RGO) were added. Finally, a one-dimensional/two-dimensional (1D/2D) PAM-Gel/CNTs-RGO heterostructured van der Waals hydrogel was prepared by mixing CNTs with RGO. The experimental results showed that compared with PAM-Gel/CNTs hydrogel or PAM-Gel/RGO hydrogel, the mixed PAM-Gel/CNTs-RGO hydrogel showed the best EMI shielding performance. In general, the EMI shielding effect of PAM-Gel/CNTs-RGO-1 : 1 in the X-band with a thickness of 4 mm was as high as 45.14 dB, compressive stress–strain was 18.45 MPa and 95.90%, water content was 75.74%, and conductivity was 1.12 s m<small><sup>−1</sup></small>.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 45","pages":" 19325-19336"},"PeriodicalIF":2.7000,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/nj/d4nj03558e","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
With the rapid development of the electromagnetic (EMI) industry, EMI pollution has become a serious problem. In this work, the effect of filler content on electromagnetic shielding performance was studied by heat-induced polymerization of acrylamide (AM) and gelatin (Gel) to form double-mesh hydrogel (PAM-Gel), and then, different contents of carbon nanotubes (CNTs) and reduced graphene oxide (RGO) were added. Finally, a one-dimensional/two-dimensional (1D/2D) PAM-Gel/CNTs-RGO heterostructured van der Waals hydrogel was prepared by mixing CNTs with RGO. The experimental results showed that compared with PAM-Gel/CNTs hydrogel or PAM-Gel/RGO hydrogel, the mixed PAM-Gel/CNTs-RGO hydrogel showed the best EMI shielding performance. In general, the EMI shielding effect of PAM-Gel/CNTs-RGO-1 : 1 in the X-band with a thickness of 4 mm was as high as 45.14 dB, compressive stress–strain was 18.45 MPa and 95.90%, water content was 75.74%, and conductivity was 1.12 s m−1.
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