文献类型：期刊文献

英文题名：Preparation and Characterization of Lightweight Carbon Foam Derived From Silicon-Containing Arylacetylene Resin With Antioxidant Properties and Excellent Electromagnetic Interference Shielding Performance

作者：Shen, Xuetao[1];Jin, Chaoen[1];Wang, Fan[1];Zhu, Yaping[1];Deng, Shifeng[1];Qi, Huimin[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tech, Minist Educ, Shanghai, Peoples R China

年份：2024

卷号：35

期号：10

外文期刊名：POLYMERS FOR ADVANCED TECHNOLOGIES

收录：;EI(收录号：20244317248012);WOS:【SCI-EXPANDED(收录号:WOS:001333671800001)】；

基金：This work was financially supported by the Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education, East China University of Science & Technology, and the Fundamental Research Funds for the Central Universities (Nos. 50321041918013 and 50321041917001).

语种：英文

外文关键词：antioxidant; carbon foam; electromagnetic shielding; silicon-containing arylacetylene resin

摘要：In this study, carbon foam derived from silicon-containing arylacetylene resin (CFPSA) was prepared by using silicon-containing arylacetylene (PSA) resin as the carbon precursor and polyurethane (PU) foam as the organic sacrificial template. CFPSAs with diverse apparent densities were prepared through the simple impregnation of PU foam with PSA resin solutions of varying concentrations. Their structures, such as the pore morphology; chemical composition; thermal stability; compression properties, and electromagnetic interference (EMI) shielding effectiveness (SE), were characterized. The results indicate that with an increase in the PSA resin concentration, the skeleton of CFPSA becomes thicker, the pore size slightly increases, the apparent density increases, the compressive strength increases, and the EMI SE slightly reduces. CFPSA-10's apparent density is 0.032 g/cm3, its 5% thermal weight loss temperature (Td5) in an air atmosphere is 642 degrees C, its thermal conductivity is 38.1 mW/m K, its specific compression strength is 2.45 MPa/g cm3, and its specific EMI SE divided by thickness (SSE/t) is 2367 dB cm2/g. CFPSA exhibits lightweight and antioxidant properties, as well as excellent electromagnetic interference shielding performance, presenting great potential for application in aerospace and other fields.