多壁碳纳米管改性氰酸酯/环氧树脂基纳米复合材料的力学性能*

doi:10.11901/1005.3093.2014.136

材料研究学报

2014, Vol. 28

Issue (8): 561-566 DOI: 10.11901/1005.3093.2014.136

本期目录 | 过刊浏览

多壁碳纳米管改性氰酸酯/环氧树脂基纳米复合材料的力学性能*

李静文^1,²,吴智雄¹,黄传军¹,李来风¹(

)

1. 中国科学院理化技术研究所低温工程学重点实验室北京 100190
2. 中国科学院大学北京 100049

Mechanical Properties of Cyanate Ester/Epoxy Resins Reinforced with Functionalized Multi-wall Carbon Nanotubes

Jingwen LI^1,²,Zhixiong WU¹,Chuanjun HUANG¹,Laifeng LI^1,^**(

)

1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190
2. University of Chinese Academy of Sciences, Beijing 100049

引用本文:

李静文,吴智雄,黄传军,李来风. 多壁碳纳米管改性氰酸酯/环氧树脂基纳米复合材料的力学性能*[J]. 材料研究学报, 2014, 28(8): 561-566.
Jingwen LI, Zhixiong WU, Chuanjun HUANG, Laifeng LI. Mechanical Properties of Cyanate Ester/Epoxy Resins Reinforced with Functionalized Multi-wall Carbon Nanotubes[J]. Chinese Journal of Materials Research, 2014, 28(8): 561-566.

全文: PDF(1345 KB) HTML

摘要:

用强酸氧化法与等离子体镀膜法分别对原始多壁碳纳米管(MWCNTs)进行表面修饰, 制备了MWCNTs改性氰酸酯/环氧树脂基纳米复合材料。对复合材料的断裂面进行SEM分析, 研究了表面处理方法对复合材料室温及低温力学性能的影响。结果表明, 经等离子体镀膜表面修饰后的MWCNT在基体中分散更为均匀, 与基体的界面结合力更强。经等离子体镀膜表面改性后的MWCNTs复合材料, 当MWCNTs质量分数为0.3%时, 其室温及低温拉伸强度、弹性模量和冲击强度较纯氰酸酯/环氧树脂基体均有不同程度的提高。

关键词 ：复合材料, 碳纳米管, 力学性能

Abstract：

Chemical oxidation and plasma polymerization were employed to functionalize the surfaces of multi-wall carbon nanotubes (MWCNTs). Then MWCNTs reinforced cyanate ester/epoxy resin nanocomposites were manufactured. The effect of the two functionalization processes on mechanical properties of the nanocomposite was investigated in terms of tensile test at room and cryogenic temperatures and observation of their fracture surfaces with SEM. Results show that the plasma polymerized MWCNTs (plasma-MWCNTs) may be dispersed more homogenously in the matrix and possess stronger interfacial bonding with the resin in comparison with the chemical oxidized ones. With addition of 0.3%(mass fraction) plasma-MWCNTs, the tensile strength, tensile modulus and impact strength of nanocompoistes at room and cryogenic temperature were simultaneously improved compared with the pure cyanate ester/epoxy resin matrix.

Key words： composites carbon nanotubes mechanical properties

收稿日期: 2014-03-24

基金资助:* 国家自然科学基金51377156, 国家磁约束核聚变能发展研究专项2011GB112003及中国科学院低温工程学重点实验室青年科技创新CRYOQN201303资助项目。

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https://www.cjmr.org/CN/10.11901/1005.3093.2014.136 或 https://www.cjmr.org/CN/Y2014/V28/I8/561

图1 不同MWCNTs表面XPS谱、原始MWCNTs表面 C1s XPS谱、MWCNTs-COOH表面C1s XPS谱以及MWCNTs-plasma表面C1s XPS谱

表1 C元素及O元素含量XPS测定结果

图2 不同MWCNT/CE/EP断裂面SEM像

图3 MWCNT/CE/EP纳米复合材料在室温和77K拉伸强度和拉伸模量

图4 室温及77 K时MWCNT/CE/EP纳米复合材料冲击强度

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