文献类型：期刊文献

英文题名：In situ crosslinking of silica aerogel with reactive carbon fiber for high mechanical property, thermal insulation and superhydrophobicity

作者：Liu, Shan Luo, Dan He, Min Qin, Shuhao

第一作者：刘松

通信作者：Liu, S[1];Qin, SH[2]

机构：[1]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Univ, Coll Mat & Met, Guiyang 550025, Peoples R China.|贵州理工学院;

年份：2024

卷号：377

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20242316214174);Scopus(收录号：2-s2.0-85195044705);WOS:【SCI-EXPANDED(收录号:WOS:001251260400001)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 52163011) , Science and Technology Project of Guizhou Province (QianKeHe Zhicheng [2023] General 146, QianKeHe FuQi [2023] 001, QianKeHe ZhongYinDi [2023] 035) .

语种：英文

外文关键词：Silica aerogel; Carbon fiber; Mechanical property; Thermal insulation; Superhydrophobicity

摘要：In this study, a novel silicon hydroxyl groups decorated long carbon chain grafted carbon fiber was synthesized, and a facile fabrication method was developed to produce reactive carbon fiber-silica aerogel composite with chemical crosslinking structure. Scanning electron microscopy images showed that silica aerogel matrix is wrapped on the surface of reactive carbon fibers. The reactive carbon fibers facilitated obstacle in shrinkage, and aerogel composites exhibited microporous behavior with average diameter of about 1.8 nm. Fourier-transform infrared and X-ray photoelectron spectroscopy confirmed the strong interfacial interaction between reactive carbon fibers and silica matrix. The modification mechanism of silicon hydroxyl groups decorated long carbon chain grafted carbon fiber, and the chemical crosslinking in aerogel composite were proposed. The reactive carbon fiber-silica aerogel composites synthesized in this work had been proved to have low density, excellent mechanical property, good tailoring performance, improved thermal stability, low thermal conductivity, high flame retardancy, high thermal insulation property, and superhydrophilicity. Hence, this work provided a theoretical basis for improving the performance and expanding the application of silica aerogel.