文献类型：期刊文献

英文题名：Study on foaming behavior of block copolymer/inorganic particles co-construction of toughened epoxy resin foams

作者：Zhou, Taineng Yu, Caili Yang, Le Liu, Wei Jiang, Tuanhui Zeng, Xiangbu Shen, Kuanchun Jin, Bo Zhang, Chun He, Li

第一作者：Zhou, Taineng

通信作者：Zhang, C[1];He, L[2]

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550022, Guizhou, Peoples R China;[3]Guizhou Yong Hong Aviat Machinery Co Ltd, Guiyang, Peoples R China;[4]Guizhou Honglin Aero Engine Control Technol Co Ltd, Guiyang, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang 550022, Guizhou, Peoples R China.|贵州理工学院;

年份：2024

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20244317253459);Scopus(收录号：2-s2.0-85206918235);WOS:【SCI-EXPANDED(收录号:WOS:001336318100001)】；

基金：This work was supported by National Natural Science Foundation of China (52263004, 51863003), Research Institute Service Enterprise Action Plan Project of Guizhou Province (No. [2018]4010), Research Start-up Foundation for Advanced Talents of Guizhou Institute of Technology (XJGC20190657) and the Special Project of Academic New Seedling Cultivation and Innovation Exploration of Guizhou Institute of Technology (GZLGXM-23).

语种：英文

外文关键词：block copolymer; epoxy resin foams; foaming behavior; inorganic particles

摘要：Low toughness and brittleness limit its application range of thermosetting epoxy resin (EP) based foams. In current research, inorganic particles are commonly utilized as heterogeneous nucleating agents to enhance foaming quality and EP toughness. However, the increasing inorganic particle content usually leads to particle agglomeration, which negatively impacts foaming quality and reduces EP performance. Block copolymers, which appear as liquid to effectively mitigate agglomeration, are employed as toughening materials for EP. In this study, a small number of modified calcium silicate particles (MCS) were used as anchor points to induce the distribution of block copolymers (P-F68) to improve EP toughness and effectively enhance cell nucleation, thus, EP/MCS/P-F68 foams performance was improved. The research results showed that EP foams obtained excellent cell structure and very small foam density (0.256 g/cm3) at the P-F68 content of 10 wt%. The continuous increase of P-F68 content would lead to the thickening of cell wall and the increase of cell size. Simultaneously, the core-shell structure formed by P-F68 in EP effectively enhanced the toughness of EP foams and mitigated its brittleness, offering crucial theoretical guidance for toughening and regulating the cell structure of EP foams. Block copolymer and inorganic particles co-construction of EP foam material. image