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

机构：[1] National Engineering Laboratory for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, 210042, China; [2] College of Materials Science and Technology, Beijing Forestry University, Beijing, 100083, China; [3] Co-Innovation Center of Efficient Processing, Utilization of Forestry Resource, Nanjing Forestry University, Nanjing, 210037, China; [4] Shenzhen Vital New Material Company Limited, Vital Industrial Zone, No.18, Shuitian Rd.1, Tongle Community, Baolong Street, Longgang District, Shenzhen, 518100, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240480549)

语种：英文

外文关键词：Electric shielding - Fighter aircraft - Heat shielding - Hydrolysis - Magnetic shielding - Photoionization - Photolysis

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 and recyclable 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 °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. ? 2024, The Authors. All rights reserved.