不同氧化程度石墨烯与羧基丁腈橡胶复合材料的制备及表征
摘要本文通过调节KMnO4的用量，采用Hummers法及超声剥离得到一系列氧化程度不同的氧化石墨烯（GO），通过与羧基丁腈橡胶（xNBR）胶乳共凝得到GO/xNBR复合材料。研究了GO氧化程度对GO/xNBR复合材料物理机械性能、硫化性能、热稳定性及耐溶剂性等性能的影响。结果表明：KMnO4的用量越多，GO的氧化程度越大；GO的填充能够显著提高xNBR硫化胶的物理机械性能、硫化性能、热稳定性及耐溶剂性。填充GOD15（KMnO4的用量为15 g）对xNBR的补强效果最好。当GOD15用量为4份时，相比于空白xNBR，GO/xNBR硫化胶的拉伸强度和300%定伸模量（M300）分别提高了114.60%和269.32%，5%失重率温度（T5）和最大失重温度（Tmax）分别增大了15.0 ℃和21.8 ℃。42548
关键词 羧基丁腈橡胶 氧化石墨烯 氧化程度 性能
毕业论文设计说明书外文摘要
Title The preparation and properties of carboxylated nitrile rubber nano-composites with graphene oxide of different oxidation degrees
Abstract
Graphene oxide（GO）of different oxidation degrees was synthesized using different amount of KMnO4 through a Hummers’ method, and then the GO suspersions were mixed with xNBR latex to fabricate GO/xNBR nano-cmposites. The mechanical properties, curing behavior，thermal stability and solvent resistance were characterized to reveal the influence of different oxidation degrees of GO on the performance of GO/xNBR nano-composites. The results were as following: the increasement in KMnO4 dosage resulted in higher oxidation degree. The mechanical properties, curing behavior，thermal stability and solvent resistance of GO/xNBR nano-composites were significant improved. When adding 4phr GOD15(the amount of KMnO4 was 15 g), the properties of GO/xNBR nano-composites were largely enhanced compared with neat xNBR: The tensile strength and modulus at 300% elongation increased by 114.60% and 269.32%, respectively. Meanwhile, the temperature for 5% degradation（T5） and maximal rate of heat decomposition process（Tmax） improved by 15.0 °C and 21.8 °C, respectively.
Keywords Cboxylated nitrile rubber Graphene oxide Oxidation degrees Properties
目 录
1 绪论 1
1.1 引言 1
1.2 GO的制备 2
1.3 GO的性质 2
1.3.1 GO氧化程度的控制方法 2
1.3.2 GO的结构控制 2
1.4 GO/橡胶复合材料的制备 3
1.5 氧化石墨烯/橡胶复合材料的性能 3
1.5.1 机械性能 3
1.5.2 动态力学性能 4
1.5.3 阻隔性能 4
1.5.4 导热性能 4
1.5.5 热稳定性 4
1.6 本课题的选题意义与主要研究内容 5
2 实验部分 6
2.1 实验药品与仪器 6
2.2 实验配方 7
2.3 样品制备 7
2.3.1 不同氧化程度GO的制备 7
2.3.2 GO/xNBR复合材料的制备 8
2.4 结构表征和性能测试