摘要
研究了三乙烯四胺(TETA)修饰的多壁碳纳米管(MWNT)对环氧树脂(EP)/MWNT复合材料力学性能的影响。结果显示,氨基化的短MWNT表面的TETA含量较高,修饰效果较好,在EP中分散性较好。添加1%左右的氨基化短MWNT复合材料的冲击强度、断裂伸长率、拉伸强度和弯曲强度较纯EP分别提高了163%、345%、80%和31%;氨基化的长MWNT比短MWNT复合材料的冲击强度和断裂伸长率分别高18.4%和10.2%;拉伸强度和弯曲强度则分别低4.2%和5.3%。
The influence of multiwall carbon nanotubes（MWNT） modified with triethylenetetramine on the mechanical properties of composites was investigated. Results showed that the content of TETA on the surface of short MWNT was high, and the modified short MWNT had good dispersibility in epoxy resin. Comparing with the pure epoxy resin, the impact strength, breaking elongation, the tensile strength and the bending strength of composites increased respectively 163%, 345%, 80% and 31% when the dosage of modified short MWNT in composites was 1.0%. Comparing with the long MWNT of 50 μm, the increase of tensile strength and bending strength achieved 4.2% and 5.3% respectively when the length of MWNT is 2 μm. But the impact strength and the breaking elongation decreased 18.4% and 10.2%.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2006年第12期8-12,共5页
Engineering Plastics Application
关键词
多壁碳纳米管
三乙烯四胺
环氧树脂
复合材料
力学性能
multiwall carbon nanotube, triethylenetetramine, epoxy resin, composite, mechanical properties
