文献类型：期刊文献

英文题名：Constructing PAM/PEG electromagnetic shielding hydrogels based on MWCNTs@TiO2

作者：Zhou, Teng Zhang, Daohai Diao, Kunlan Du, Jiajia Hu, Yupeng Lei, Zhi Liu, Dongju Liu, Shan Qin, Shuhao

第一作者：Zhou, Teng

通信作者：Zhang, DH[1];Qin, SH[1]

机构：[1]Guizhou Minzu Univ, Sch Chem Engn, Guiyang 550025, Guizhou, Peoples R China;[2]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550014, Guizhou, Peoples R China;[3]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Guizhou Minzu Univ, Sch Chem Engn, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Minzu Univ, Sch Chem Engn, Guiyang 550025, Guizhou, Peoples R China.

年份：2025

卷号：29

外文期刊名：MATERIALS TODAY NANO

收录：;EI(收录号：20251017997389);WOS:【SCI-EXPANDED(收录号:WOS:001442842400001)】；

基金：This work was supported by National Natural Science Foundation of China Project (52163001), Guizhou Provincial Science and Technology Program Project Grant (Qiankehe Platform Talents-CXTD [2021]005, Qiankehe Platform Talents-GCC [2022]010-1, Qiankehe Platform Talents-GCC[2023]035, Qiankehe Platform Talents-CXTD[2023]003), Guizhou Minzu University Research Platform Grant (GZMUGCZX[2021]01), Central Guided Local Science and Technology Development Funds Project (Qiankehe Zhong Yindi [2023]035), Green Chemistry and Resource Environment Innovation Team of Guizhou Higher Education Institutions (Guizhou Education and Technology [2022] No.13), Doctor Startup Fund of Guizhou Minzu University (Grant No. GZMUZK [2024] QD77), Guizhou Province Special Fund for innovative capacity building of scientific research institutions (Qiankehe Fuqi [2023]001, Qiankehe Fuqi [2024]002-1), Guizhou Provincial Science and Technology Program Project (Qiankehe Platform KXJZ[2024]022).

语种：英文

外文关键词：Hydrogel; Electromagnetic interference shielding; Composite material; TiO2

摘要：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.