| 石墨烯增强MC尼龙复合材料的力学和摩擦学性能 |
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| 引用本文： | 龙春光,申超,曹太山. 石墨烯增强MC尼龙复合材料的力学和摩擦学性能[J]. 长沙理工大学学报(自然科学版), 2014, 0(2): 92-97 |
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| 作者姓名： | 龙春光 申超 曹太山 |
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| 作者单位： | 长沙理工大学汽车与机械工程学院,湖南长沙410004 |
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| 基金项目： | 国家科技部国际合作专项资助项目（2013DFG52800） |
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| 摘 要： | 采用原位聚合法制备了石墨烯/MC尼龙(MCPA)复合材料。使用X射线衍射仪(XRD)和傅立叶红外光谱仪(FT-IR)对石墨烯的结构进行表征,研究了石墨烯含量对复合材料的力学和摩擦学性能的影响。研究结果表明,添加0.05%的石墨烯可以使MC尼龙复合材料的拉伸强度、弹性模量、弯曲强度和弯曲模量分别提高了17.4%,14.7%,17.5%,24.3%;在干摩擦条件下,将石墨烯添加到MC尼龙中,能显著降低复合材料的磨损量,但复合材料的摩擦系数变化不明显;随着石墨烯含量的增加,石墨烯/MC尼龙复合材料的磨损机理由粘着磨损转变成疲劳磨损。
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| 关 键 词： | 石墨烯 MC尼龙 力学性能 摩擦学性能 |
Mechanical and tribological properties of MC nylon composites reinforced by graphene |
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| LONG Chun-guang,SHEN Chao,CAO Tai-shan. Mechanical and tribological properties of MC nylon composites reinforced by graphene[J]. Journal of Changsha University of Science and Technology(Natural Science), 2014, 0(2): 92-97 |
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| Authors: | LONG Chun-guang SHEN Chao CAO Tai-shan |
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| Affiliation: | (School of Automobile and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410004, China) |
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| Abstract: | Monomer casting nylon composites reinforced by different proportions of gra-phene（MCPA）were prepared by in situ polymerization and the structures of graphene oxide （GO）and reduced graphene oxide （rGO）was characterized by XRD and FT-IR.The me-chanical and tribological properties of MCPA composite were also tested.Results showed when the content of graphene was 0.05%,the tensile strength,elastic modulus,bending strength and bending modulus were increased by 17.4%,14.7%,17.5% and 24.3%,respec-tively.Under dry sliding,the abrasion loss of composites was largely reduced,but the fric-tion coefficient was not improved obviously.The worn mechanism of the composites has been changed from adhesive wear to fatigue wear with the increasing of graphene content. |
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| Keywords: | graphene monomer casting nylon mechanical properties tribological proper-ties |
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