Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites
Effect of chemical functionalization of multi-walled carbon nanotubes with 3-aminopropyltriethoxysilane on mechanical and morphological properties of epoxy nanocomposites
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DOI：
10.1016/j.compositesa.2009.04.001
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发表时间：
2009-07-01
影响因子：
8.7
通讯作者：
Lee, Joong Hee
中科院分区：
文献类型：
--
作者：
Kathi, John;Rhee, Kyong-Yop;Lee, Joong Hee
采用铸模法制备了环氧树脂和不同重量百分比未改性、氧化和硅化多壁碳纳米管（MWCNTs）的纳米复合材料。研究了MWCNTs含量对抗弯性能的影响。结果表明，随着MWCNTs载荷的增加，其抗弯强度和抗弯模量均有所提高。当MWCNTs含量超过0.2 wt.%时，由于MWCNTs的团聚，材料的力学性能下降。这些结果证明了功能化对环氧树脂与MWCNTs界面粘附的影响。通过扫描电镜和透射电镜对纳米复合材料断裂表面的形貌研究进一步证实了这一点。2009爱思唯尔有限公司版权所有。
Nanocomposites based on epoxy resin and different weight percentages of unmodified, oxidized, and silanized multi-walled carbon nanotubes (MWCNTs) were prepared by cast molding method. Effects of MWCNTs content on the flexural properties were examined. The results showed that as the loading of the MWCNTs increased, improved flexural strength and flexural modulus were observed. The mechanical properties decreased when the MWCNTs content exceeded 0.2 wt.% due to agglomeration of MWCNTs. These results prove the effect of functionalization on the interfacial adhesion between epoxy and MWCNTs. This was further confirmed by morphology study of fractured surfaces of nanocomposites by SEM and TEM. (C) 2009 Elsevier Ltd. All rights reserved.