机械共混法制备改性多层氧化石墨烯/天然橡胶复合材料及其性能  

Preparation of Modified Multilayer Graphene Oxide/Natural Rubber Composite by Mechanical Mixing Method

作　　者：熊军 赵西坡 彭少贤 Jun Xiong;Xipo Zhao;Shaoxin Peng(School of Materials Science and Chemical Engineering,Hubei Provincial Key Laboratory of Green Materials for Light Industry,Collaborative Innovation Center of Green Light-Weight Materials and Processing,Hubei University of Technology,Hubei 430068,China)

机构地区：[1]湖北工业大学材料与化学工程学院绿色轻工材料湖北省重点实验室绿色轻质材料与加工协同创新中心,湖北武汉430068

出　　处：《高分子材料科学与工程》2018年第8期135-141,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51273060);湖北省科技厅重点新产品新工艺项目(2012BAA12005)

摘　　要：采用含硫硅烷偶联剂(双-(γ-三乙氧基硅基丙基)四硫化物,Si69)改性多层氧化石墨烯(MGO),制备出改性多层氧化石墨烯(SMGO),并采用红外光谱、紫外光谱、扫描电镜对其进行表征分析。进一步利用机械共混法制备出SMGO/NR复合材料,研究了复合材料的力学性能、动态内耗性能,并与MGO/NR复合材料进行对比。结果表明,Si69成功接枝到MGO上;相比纯胶,当添加2phr SMGO时,复合材料的拉伸性能提高57%,tanδ值降低21.4%。The modified of mutilayer graphene oxide（SMGO）was prepared by treating mutilayer graphene oxide with bis-（γ-triethoxysilylpropy）-tetrasulfide（Si69）.The SMGO was characterized by FT-IR,UV,SEM.The SMGO/NR composites were prepared by mechanical mixing method.Mechanical properties and dynamic internal frictionof SMGO/NR compositeswere investigated and compared with those of MGO/NR composites.The results show that the parts of carboxyl of mutilayer graphene oxide are eliminated effectively by Si69.It is account for that the dispersity of mutilayer graphene oxide in NR is improved.Adding 2 phr SMGO,the tensile property of composites is increased by 57% and dynamic internal friction of composites is reduced by 21.4%.

关 键 词：含硫硅烷偶联剂 多层氧化石墨烯 复合材料 动态内耗 力学性能 

分 类 号：TQ332.5[化学工程—橡胶工业]