摘要氧化石墨烯拥有优异的热性能和结构特征，是聚合物基复合材料理想的增强材料。本课题主要研究了刚性氧化石墨烯纳米板（r-GONP）和柔性氧化石墨烯纳米板（f-GONP）的不同含量（0。5%、1%、2%、3%）对环氧树脂复合材料热性能的影响。通过导热率分析、玻璃化转变温度（Tg）测定、DSC曲线分析、固化程度与温度的关系等来综合了解和比较两者的热性能。经分析比较，r-GONP/环氧树脂复合材料在各方面均表现出更加优秀的热学性能，导热系数几乎达到了f-GONP/环氧树脂复合材料的两倍，纯环氧树脂的三倍多；对于Tg的影响，r-GONPs使得环氧树脂Tg稳步提高，而f-GONPs则使其波动下降；DSC曲线也表明r-GONP/环氧树脂复合材料的峰值温度更低，对环氧树脂固化反应产生促进作用。因此r-GONP更适合作为提高环氧树脂基复合材料热性能的增强材料。87891

毕业论文关键词 氧化石墨烯 环氧树脂 复合材料  热性能

毕业设计说明书外文摘要源-于,优Y尔O论U文.网wwW.youeRw.com 原文+QQ75201,8766

Title  The research on the effects of different grapheme based materials to thermal properties 

Abstrct Graphene oxide has grate thermal performance and structure characteristic,which is a perfect heat-conductive material for polymeric-based material。In this research mainly studied how rigid-graphene oxide nanoplates and flexible-graphene oxide nanoplates influence the thermal performance of epoxy composite in different loading capacity(0。5%,1%,2%,3%)。In this reaserch, thermal conductance analysis,the test of Tg,the analysis of DSC curve were used to compare thermal performance of the two kinds GONP/epoxy cpmposites。The results showed that r-GONP/epoxy composites have a better thermal performance than f-GONP/epoxy composites in every side,such as r-GONP/epoxy composites have double Thermal conductivity than that of f-GONP/epoxy composites,and three times more than pure epoxy;r-GONPs can enchance the Tg of epoxy smoothly,while f-GONP decline the Tg fluctuantly;r-GONP/epoxy composites also have a lower Tp from DSC curve,which has more positive effect on cure process。So it seems that r-GONPs are more suitable for epoxy composite as reinforcing material to improve thermal performance。

Keywords  graphene oxide  epoxy   composite   thermal performance

目   次

1 绪论 1

1。1 石墨烯 3

1。2 氧化石墨烯 4

1。3 石墨烯/聚合物复合材料的制备 8

1。4 石墨烯基聚合物复合材料的性能研究 9

1。5 本毕业论文研究内容 11

2 实验 12

2。1 实验试剂 12

2。2 刚性氧化石墨烯纳米板（r-GONPs）的制备 12

2。3 r-GONPs/环氧树脂复合材料的制备 12

2。4 f-GONPs/环氧树脂复合材料的制备 13

2。5 测试方法 14

3 结果与讨论 15

3。1 不同的氧化石墨烯纳米板（GONPs）对环氧树脂导热系数和玻璃化转变温度的影响 15

3。2 DSC曲线分析 17From~优Y尔R论^文W网wWw.YoUeRw.com 加QQ7520.18766

3。3 通过DSC研究对固化反应程度和温度关系的分析 18