文献类型：期刊文献

英文题名：Surface Modification of Basalt Fibers with Improved Reactivity, Thermal Stability, and Tensile Strength

作者：Liu, Shan Yang, Jifei Fan, Qiao He, Lulu Qin, Shuhao He, Min

第一作者：刘松

通信作者：Liu, S[1];He, M[2]

机构：[1]Guizhou Inst Technol, Coll Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Coll Mat & Met, Dept Polymer Mat & Engn, 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, Dept Polymer Mat & Engn, Guiyang 550025, Peoples R China.|贵州理工学院;

年份：2024

外文期刊名：FIBERS AND POLYMERS

收录：;EI(收录号：20243516948914);Scopus(收录号：2-s2.0-85202214010);WOS:【SCI-EXPANDED(收录号:WOS:001299957000002)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant No. 52163011), and Science and Technology Project of Guizhou Province (QianKeHe Pingtai Rencai CXTD [2023] 012; QianKeHe Zhicheng [2023] General 146).

语种：英文

外文关键词：Basalt fibers; Surface modification; Silane coupling agent; Thermal stability; Tensile strength

摘要：Due to the poor interfacial adhesion of commercial basalt fibers (BFs), failure mechanisms such as fiber debonding, sliding, pull-out, and crack bridging occurred at BFs/polymer interfaces. In this work, BFs were surface modified by 3-aminopropyltrimethoxysilane (APTES) and succinic anhydride (SA) to improve their interface compatibility. The surface treatment was conducted after removing the original commercial sizing and pretreating them with high-temperatures and activation process. APTES and SA were successfully grafted on BFs rather than physical coating, it introduced specific functional groups, increased thermal stability and reduced surface defects of BFs. High-temperature reduced the -OH groups and weakened monofilament tensile strength, but activation process realized surface Si-OH regeneration, which enhanced thermal stability and tensile strength of BFs. The monofilament tensile strength of BFs followed a two-parameter Weibull distribution. The monofilament tensile strength of APTES- and SA-modified BFs increased by up to 84.3% compared with high-temperature reduced BFs. By modification, the functional groups were successfully introduced into commercial BFs, the maximum thermal decomposition temperature was 507 degrees C, increased by 35.7%. The modified BFs is expected to improve the overall performance of BFs/polymer composites.