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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：高分子材料. 高分子化学与物理. 功能材料化学与化工
办公地点：大连理工大学西部校区化工实验楼A405
联系方式：手机：13009436945
电子邮箱：wangjinyan@dlut.edu.cn
One-step functionalization of carbon fiber using in situ generated aromatic diazonium salts to enhance adhesion with PPBES resins
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论文类型：期刊论文
发表时间：2016-01-01
发表刊物：RSC ADVANCES
收录刊物：SCIE、EI
卷号：6
期号：74
页面范围：70704-70714
ISSN号：2046-2069
摘要：In the present study, we developed a novel approach to introduce amino group (-NH2), hydroxyl group (-OH) and sulfhydryl group (-SH) onto carbon fibers (CFs) using aromatic diazonium salts. Fourier transform infrared spectroscopy, Raman spectra, X-ray photoelectron spectroscopy, scanning electron microscope and single fiber tensile testing were performed to characterize the functional CFs. Interlaminar shear strength (ILSS) and flexural strength were carried out to investigate the interfacial properties of CFs/PPBES composites. Experimental results showed that -NH2, -OH and -SH were grafted on the CFs surface and increase the fibers surface roughness. The functionalization did not lead to any discernable decrease in the fibers tensile strength. It was obvious that ILSS and flexural strength were enhanced. Dynamic mechanical analysis and hydrothermal aging tests revealed that CF-NH2/PPBES had excellent high temperature mechanical properties and hydrothermal aging resistance. Additionally, the reinforcing mechanisms were also analyzed.