文献类型：期刊文献

英文题名：Study on the foaming behavior of density-controllable epoxy resin composite foam under negative pressure environment

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

第一作者：Zhou, Taineng

通信作者：Zhang, C[1];He, L[2]|[14440f6a6d277849ce3bf]张纯;

机构：[1]Guizhou Univ, Sch Chem & Chem Engn, Guiyang, Peoples R China;[2]Natl Engn Res Ctr Compounding & Modificat Polymer, Guiyang, Peoples R China;[3]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang, Peoples R China;[4]Guizhou Honglin Aero Engine Control Technol Co Ltd, Guiyang, Peoples R China;[5]Guizhou Univ, Coll Mat & Met, Guiyang, Peoples R China;[6]Guizhou Yong Hong Aviat Machinery Co Ltd, Guiyang, Peoples R China;[7]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Guizhou, Peoples R China

第一机构：Guizhou Univ, Sch Chem & Chem Engn, Guiyang, Peoples R China

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang, Peoples R China;corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Guizhou, Peoples R China.|贵州理工学院;

年份：2023

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20232614303837);Scopus(收录号：2-s2.0-85162895143);WOS:【SCI-EXPANDED(收录号:WOS:001019409200001)】；

基金：National Natural Science Foundation of China, Grant/Award Numbers: 52263004, 51863003; Research Institute Service Enterprise Action Plan Project of Guizhou Province, Grant/Award Number: [2018]4010; Research Start-up Foundation for Advanced Talents of Guizhou Institute of Technology, Grant/Award Number: XJGC20190657; Special Project of Academic New Seedling Cultivation and Innovation Exploration of Guizhou Institute of Technology, Grant/Award Number: GZLGXM-23

语种：英文

外文关键词：cell morphology; epoxy resin; modified calcium silicate; negative pressure foaming

摘要：The incomplete decomposition of foaming agent and tedious process during the preparation of epoxy resin composite foam (ERCF) will reduce the mechanical properties and lead to more complex production. Therefore, in this study, a new and simple negative pressure foaming method was designed innovatively to prepare ERCF under negative pressure using strong gas adsorption capacity of inorganically modified calcium silicate (MCS) particles as air carriers instead of foaming agent, and the density and expansion ratio of ERCF could be precisely controlled by adjusting the negative pressure value in a vacuum oven. The results showed that the density of ERCF could reach a very low value of 0.056 g/cm(3) at 15 wt% MCS content with decreased negative pressure, but the negative pressure decreases would damage the quality of cells. At the same time, it was found that a rapid rise in the viscosity of the epoxy composite material system under negative pressure of -0.080 MPa owing to the increase in MCS content, when the MCS content was higher than 15 wt%, the MCS dispersion was reduced, leading to a decrease in the quality of the cells. In addition, the ERCF products prepared by the negative pressure foaming method in this study could be easily molded and possessed a better compressive strength among epoxy foams of similar density.