%0 Journal Article
%T 石墨烯-多壁碳纳米管协同增强环氧树脂复合材料的低温力学性能<br>Cryogenic mechanical properties of epoxy composites synergistically reinforced by graphene-multi-walled carbon nanotubes
%A 沈小军
%A 孟令轩
%A 付绍云
%J 复合材料学报
%D 2015
%R 10.13801/j.cnki.fhclxb.20140502.002
%X 为了提高环氧树脂的低温力学性能,采用石墨烯与多壁碳纳米管(MWCNTs)协同改性环氧树脂,系统研究了石墨烯-MWCNTs /环氧树脂复合材料的室温(RT)和低温(77 K)力学性能。结果表明:当石墨烯的质量分数为0.1wt%,MWCNTs的质量分数为0.5wt%时, 纳米填料的加入可同时改善环氧树脂的低温拉伸强度、弹性模量和冲击强度;在此最佳含量下, 石墨烯-MWCNTs/环氧树脂复合材料在RT和77 K时的拉伸强度皆达到最大值, 比纯环氧树脂的拉伸强度分别提高了11.04% 和 43.78%。石墨烯和MWCNTs能协同提高环氧树脂的低温力学性能。 In order to enhance the cryogenic mechanical properties of epoxy, graphene and multi-walled carbon nanotubes (MWCNTs) were used to modify epoxy synergistically. Room temperature (RT) and cryogenic (77 K) mechanical properties of graphene-MWCNTs/epoxy composites were systematically studied. The results show that simultaneous enhancements in cryogenic tensile strength, elastic modulus and impact strength can be achieved with 0.1wt% graphene and 0.5wt% MWCNTs. At this optimal formulation, the tensile strength of graphene-MWCNTs/epoxy composites reaches the highest value at both RT and 77 K, and is increased by 11.04% and 43.78% respectively, compared to pure epoxy. The cryogenic mechanical properties of epoxy can be synergistically enhanced by graphene and MWCNTs. 北京市自然科学基金(2122055); 浙江省教育厅科研项目(Y201330172); 浙江省纺织工程重点学科-高效节能短流程纺织先进加工技术 (2010R5012); 嘉兴市科技计划(2013AY11016)
%K 多壁碳纳米管
%K 石墨烯
%K 环氧树脂
%K 复合材料
%K 低温力学性能&lt
%K br&gt
%K multi-walled carbon nanotubes
%K graphene
%K epoxy
%K composites
%K cryogenic mechanical properties
%U http://fhclxb.buaa.edu.cn/CN/abstract/abstract12435.shtml