文献类型：期刊文献

英文题名：Degradable silver-plated epoxy foams with exceptional Joule heating and electromagnetic shielding properties

作者：Tian, Yabing[1,2,3] Feng, Xuezhen[1] Wang, Jing[1] Shang, Shibin[1] Liu, Fang[4] Jiang, Jianxin[2] Zhang, Haibo[1] Chen, Yuxiang[1] Song, Zhanqian[1]

第一作者：Tian, Yabing

通信作者：Zhang, HB[1];Chen, YX[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Peoples R China;[2]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China;[3]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forestry R, Nanjing 210037, Peoples R China;[4]Shenzhen Vital New Mat Co Ltd, Vital Ind Zone 18,Shuitian Rd 1,Tongle Community,B, Shenzhen 518100, Peoples R China

年份：2025

卷号：508

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20250917969962);Scopus(收录号：2-s2.0-85218883532);WOS:【SCI-EXPANDED(收录号:WOS:001438355900001)】；

基金：The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant No. 32271817) .

语种：英文

外文关键词：Epoxy foam; Degradable; Silver mirror reaction; Electromagnetic interference shielding; Joule heating

摘要：Designing degradable foams with excellent Joule heating and electromagnetic interference (EMI) shielding properties are crucial for protecting both the environment and low-temperature sensitive electronic devices. In this work, we used 1,3-diaminopropane carbamate (DPC) as a latent foaming-curing agent to prepare soft-hard tunable, degradable bio-based epoxy foams through one-step chemical foaming method. Subsequently, using F3 foam with outstanding reversible compressibility as the substrate, we developed a silver-plated foam, F3A3, with predominantly reflective and high EMI shielding performance via silver mirror reaction. The silver-plated foam F3A3 exhibited an electromagnetic interference shielding effectiveness (EMI SE) of 76.37 dB in the X-band (8.2-12.4 GHz), achieving a shielding efficiency as high as 99.99999%. Additionally, under an input voltage of 1.0 V, the surface saturation temperature of F3A3 rapidly increased from room temperature to 104.0 degrees C and demonstrated excellent stability and durability in low-voltage Joule heating. Due to the presence of dynamic ester bonds and tertiary amine structures in the F3A3 foam, it exhibited catalyst-free self-healing capability. These superior properties make the silver-plated foam highly promising for applications in military equipment, aerospace, and wearable electronic devices.