文献类型：期刊文献

英文题名：PS/PPO foam with excellent comprehensive properties prepared by integrated foaming and sintering strategy with microwave-assisted

作者：Zhong, Wenyu[1];Yu, Jiabao[1];Yang, Nemin[1];Hu, Dongdong[1];Chen, Yichong[1,3];Fan, Chuanjie[1];Jiang, Xiulei[2];Zhao, Ling[1,3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China;[2]Suzhou Shincell New Mat Co Ltd, Suzhou 215000, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Elect Chem Innovat Inst, Shanghai 201419, Peoples R China

年份：2024

卷号：48

外文期刊名：COMPOSITES COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001239186900001)】；

基金：This work was supported by the National Natural Science Foundation of China, China (22308097) , the Fundamental Research Funds for the Central Universities, China, the 111 Project, China (B20031) , and Shanghai Post -doctoral Excellence Program, China (2022765)

语种：英文

外文关键词：Integrated foaming and sintering strategy; Microwave selective sintering; Polystyrene bead foam; Polyphenylene oxide; Excellent comprehensive performance

摘要：Expanded polystyrene (EPS) foam, as the earliest and most common foam part, holds the largest market share in the bead foam industry. However, its poor mechanical and thermal performance significantly hinders its widespread application. Introducing high-performance polymer polyphenylene oxide (PPO), which is wellcompatible, can markedly enhance the properties of polystyrene (PS). Nevertheless, the elevated processing temperature poses a challenge for sintering the beads of PS/PPO. In this study, we propose a microwave-assisted polymer integrated foaming and sintering strategy (IFS strategy). Benefiting from the selective heating properties of microwaves, PS/PPO bead foams after rapid depressurization foaming can be sintered into robust foam parts in an extremely short time, with the simultaneous expulsion of microwave absorbers. The compressive performance of PPO-enhanced PS foam is improved by 155 % compared to PS foam and 707 % compared to expanded polystyrene (EPS). Additionally, the foam also has excellent temperature resistance (over 140 degrees C), flame retardancy, and thermal insulation (thermal conductivity of about 40 mW/m & sdot;K). This approach provides feasible pathway for the green, efficient, safe, energy-saving, and sustainable preparation of high-temperature processing and high-performance polymer bead foam parts.