文献类型：期刊文献

英文题名：Construction of an Interfacial Layer of Aramid Fibers Grafted with Glycidyl POSS Assisted by Heat Treatment and Evaluation of Interfacial Adhesion Properties with Epoxy Resin

作者：Li, Yang Shi, Caiwen Pan, Xiaoli Wang, Ziyi Yang, Le

第一作者：李杨;Li, Yang

通信作者：Yang, L[1];Yang, L[2]

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Coll & Univ, Proc Ind New Proc Engn Res Ctr, Guiyang 550003, 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, Peoples R China;corresponding author), Guizhou Coll & Univ, Proc Ind New Proc Engn Res Ctr, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2024

卷号：9

期号：23

起止页码：24489-24499

外文期刊名：ACS OMEGA

收录：;Scopus(收录号：2-s2.0-85195052275);WOS:【SCI-EXPANDED(收录号:WOS:001235279000001)】；

基金：The authors gratefully acknowledge the National Natural Science Foundation of China (Grant No. 52363009) and PhD start-up fund of Guizhou Institute of Technology and Guizhou Colleges and Universities Process Industry New Process Engineering Research Center (Qian Jiao Ji [2022] 034).

语种：英文

摘要：The surface of para-aramid fibers (AFs) was modified via air-assisted heat pretreatment and solution impregnation by varying the glycidyl polyhedral oligomeric silsesquioxane (POSS) content. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy showed an ester group, confirming the graft reaction between glycidyl POSS and oxidized AFs. The mechanical properties of AFs could be altered by varying the glycidyl POSS content. The modified AFs exhibited an optimal tensile strength after embedding 5 wt % glycidyl POSS on the fiber surface. The thermal stability of the modified fibers decreased; however, no obvious changes in crystallinity were observed by varying the glycidyl POSS content. Moreover, the tensile strength of monofilament increased from 23.8 to 25.8 cNdtex(-1), the thickness of the grafted layer on the fiber surface was above 30-40 nm after the graft modification with 5 wt % glycidyl POSS, and the interfacial shear strength (IFSS) increased by 62.55% to 26.22 MPa. Thus, the modified glycidyl AFs can be used for the reinforcement of composite materials.