氧化石墨烯/密胺树脂复合材料的制备及其热性能研究  

Preparation and thermal properties of graphene oxide/MF composites

作　　者：陈中华[1] 王建川[1] 余飞[2] 张正国[2] 高学农[2] 

机构地区：[1]华南理工大学材料科学与工程学院,广州510640 [2]华南理工大学强化传热与过程节能教育部重点实验室,广州510640

出　　处：《功能材料》2015年第1期1125-1128,1134,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50973033);中国博士后科学基金资助项目(2013M542176)

摘　　要：首先采用Hummers法制备出氧化石墨烯(GO),然后与三聚氰胺、甲醛进行原位聚合,制备出GO/密胺树脂(MF)复合材料,并用傅里叶红外光谱仪(FT-IR)、原子力显微镜(AFM)、扫描电镜(SEM)分析和观察了氧化石墨烯及复合材料的分子结构及形貌,通过导热系数测试仪、热重分析仪(TG)对复合材料的热性能进行了表征。研究发现,随着氧化石墨烯(GO)添加量的增加,复合材料导热系数增加先快后慢,当GO添加量为0.84%时,复合材料导热系数提高32.0%,GO的添加提高复合材料低温下的热稳定性。Graphene oxide/melamine-formaldehyde resin (GO/MF)composites were prepared by in situ poly-merization.The structure and morphologies of GO and composites were investigated using Fourier transforma-tion infrared spectroscopy (FT-IR),atomic force microscope(AFM)and scanning electron microscope (SEM). The thermal properties of samples were studied by thermal gravimetric analysis (TGA).The result showed that thermal stability of the composites with GO were improved.Thermal conductivity of the GO/MF composites with 0.84wt% GO could be increased by 32.0% compared to MF without GO.

关 键 词：氧化石墨烯 密胺树脂 复合材料 导热系数 热稳定性 

分 类 号：TB332[一般工业技术—材料科学与工程]