硅烷偶联剂对碳微球的表面化学修饰  

Surface modification of carbon microspheres using a silane coupling agent

作　　者：李莎[1,2] 段菲菲[1,2] 杨永珍[1,3] 刘旭光[1,2] 许并社[1,3] 

机构地区：[1]太原理工大学新材料界面与工程教育部重点实验室,山西太原030024 [2]太原理工大学化学化工学院,山西太原030024 [3]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《功能材料》2011年第1期25-29,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20971094);长江学者和创新团队发展计划资助项目(IRT0972);科技部国际科技合作资助项目(2007DFA50940);山西省自然科学基金资助项目(2009011012-4);山西省国际科技合作资助项目(2009081018;2010081017);山西省回国留学人员科研资助项目(2008-31)

摘　　要：首先采用混酸体系对碳微球(CMSs)表面进行氧化处理,使CMSs表面引入含氧官能团,进而以γ-(甲基丙烯酰氧)丙基三甲氧基硅烷(KH-570)与CMSs表面发生缩合反应,得到了表面有机修饰的CMSs。利用傅立叶红外光谱仪、场发射扫描电子显微镜、X射线光电子能谱等检测手段对各阶段的产物进行了形貌和结构表征,并研究了其在乙醇中的稳定性。结果表明,CMSs经混酸、硅烷化修饰后,在有机溶剂中的稳定性提高,为CMSs的进一步功能化奠定了实验基础。Carbon microspheres（CMSs） were oxidized by a mixture of concentrated sulfuric and nitric acids.Then oxidized CMSs were modified by 3-methacryloxypropyl trimethoxysilane.The morphologies and microstructures of all samples were characterized by fourier transformation infra-red spectrometry,field emission scanning electron microscopy,X-ray photoelectron spectroscopy and thermogravimetry.The results indicate that oxygen-containing groups and KH-570 were successfully grafted on the surface of CMSs after oxidation and silanization treatment,which resulted in a much improved dispersion of CMSs in ethanol.This lays an experimental foundation for the further functionalization of CMSs.

关 键 词：碳微球 氧化 硅烷化 修饰 

分 类 号：TQ127.1[化学工程—无机化工]