| 氧化石墨烯与白炭黑并用填充丁苯橡胶纳米复合材料的性能 |
| Properties of styrene butadiene rubber nanocomposites filled by graphene oxide and silica |
| 投稿时间：2014-05-06 修订日期：2014-05-06 |
| DOI： |
| 中文关键词: 氧化石墨烯 白炭黑 丁苯橡胶 纳米复合材料 力学性能 耐磨性 |
| 英文关键词: grapheme oxide silica styrene butadiene rubber nanocomposite mechanical property wear resistance |
| 基金项目: |
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| 中文摘要: |
| 通过乳液共混与机械剪切结合制备了氧化石墨烯/白炭黑/丁苯橡胶(GO/Silica/SBR)纳米复合材料,研究了复合材料的综合性能。结果表明：两种并用填料在橡胶基体中均能达到纳米级分散，且白炭黑粒子粒子填补了GO片层间的空隙。GO的加入延长了复合材料的正硫化时间，改变了材料的交联密度。GO等份数替代白炭黑，可以提高橡胶基体中填料的有效体积份数，改善复合材料的物理机械性能以及动态力学性能。GO的加入对复合材料耐磨性能提高显著。另外，氧化石墨烯-白炭黑并用填充复合材料60℃的损耗因子与普通纯白炭黑填充复合材料相比有所降低，能进一步降低滚动阻力，但其0℃的损耗因子也呈现降低趋势，对复合材料抗湿滑性能影响不利 |
| 英文摘要: |
| Graphene oxide /Silica/ styrene butadiene rubber (GO/Silica/SBR) nanocomposites were prepared by emulsion blending combined with mechanical shearing. The overall properties of the nanocomposites were studied. The results shows that two fillers in the rubber matrix were dispersed in nano-scale,and silica particles filled the gap of the GO sheets. The addition of graphene oxide prolonged the curing time of compounds and changed the crosslinking density of the composites. GO substituting for the same level of silica can increase the effective volume fraction of filler in the rubber matrix and improve mechanical properties and the dynamic mechanical properties of the composites.The wear resistance of the composites were significantly improved. Furthermore, the loss factor at 60 ℃ of the composites filled by the graphene oxide and silica decreased compared with that filled only by silica and rolling resistance can be further reduced. The loss factor at 0 ℃ showed a decreasing trend which had a bad effect on wet skid resistance. |
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