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GO补强xNBR/SBR共混胶的性能研究

时间:2019-03-09 13:55来源:毕业论文
采用Hummers法将石墨氧化,并用超声对其进行粉碎和剥离,制得氧化石墨烯。将氧化石墨烯加入到羧基丁腈橡胶(xNBR)和丁苯橡胶(SBR)混合胶乳中,制得硫化胶。研究了氧化石墨烯在

摘要本文采用Hummers法将石墨氧化,并用超声对其进行粉碎和剥离,制得氧化石墨烯。将氧化石墨烯加入到羧基丁腈橡胶(xNBR)和丁苯橡胶(SBR)混合胶乳中,制得硫化胶。研究了氧化石墨烯在SBR/xNBR胶乳中的分散性,以及氧化石墨烯对复合材料的硫化性能、机械性能、导热性能、热稳定性等的影响。结果表明,通过Hummers法、超声剥离制备的石墨烯衍生物含有多种含氧官能团;GO的加入可以显著降低硫化时间,提升材料的撕裂强度、导热系数、热稳定性,在GO含量为3 phr时,机械强度最高为18.31MPa,提升了358.9%。33692
关键词  氧化石墨烯  丁苯橡胶  羧基丁腈橡胶  机械性能
毕业论文设计说明书外文摘要
Title   The research of the properties of SBR/xNBR hybrids reinforced by graphene oxide                      
Abstract
In this paper, the graphite oxide was carried out by Hummers method, and then exfoliated in water via ultrasonication to smash and release to form graphene oxide. The graphene oxide was added to the carboxyl nitrile (xNBR) and styrene-butadiene (SBR) blended latex, and then manufacture vulcanizate through curing. We studied the dispersion of graphene oxide in SBR / xNBR composite, as well as the effects of graphene oxide on the curing properties, mechanical properties, thermal conductivity, thermal stability of composite.The results show that, graphene oxide which was prepared via oxidation of graphite (Hummers method) and followed by ultrasonication had many different functional groups. The optimum curing time was obviously decreased and the tear strength, thermal conductivity, thermal stability of sample were unparallelly improved with the loading of GO increased. When the content is 3 phr, the maximum tensile strength was obtained, which was 18.31MPa and 358.9% higher than unfilled sample.

源`自*六)维[论*文'网www.lwfree.cn


Keywords  Graphene oxide  SBR  xNBR  Mechanical properties
目   次
1  绪论    1
1.1  引言    1
1.2  氧化石墨烯及其制备    1
1.2.1  氧化石墨烯的简介    1
1.2.2  GO的制备    2
1.4  GO填充橡胶复合材料的改性    4
1.5  本课题的目的、意义及主要研究内容    5
2  实验过程    6
2.1  GO制备    6
2.1.1  实验药品和仪器    6
2.1.2  实验流程    6
2.2  SBR/XNBR/GO复合材料制备    7
2.2.1  实验药品和仪器    7
2.2.2  实验流程    7
2.3  表征及性能测试    8
2.3.1 红外光谱(FTIR)测试    8
2.3.2  XRD测试    8
2.3.3  X光电子能谱    8
2.3.4  AFM原子力显微镜    9
2.3.5  扫描电子显微镜    9
2.3.6  动态机械性能    9
2.3.7  硫化性能    9
2.3.8  拉伸性能    9
2.3.9  撕裂性能    9
2.3.10  热失重分析(TGA)    9
2.3.11  导热系数测定    9
3  结果与讨论    10
3.1  氧化石墨烯表征    10
3.2  硫化性能    11
3.3  X射线衍射(XRD)    13
3.4  SEM表征    13
3.5 机械性能    14
3.6 热失重分析(TGA)    16 源`自*六)维[论*文'网www.lwfree.cn
3.7 导热性能测试    17 GO补强xNBR/SBR共混胶的性能研究:http://www.lwfree.cn/huaxue/20190309/30928.html
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