Investigation of the microstructure of epoxy resin/MWNTs nanocomposite by the positron annihilation technique

Ya Ping Zheng, Jiao Xia Zhang, Pei Ying Yu, Wei Shi, Bo Wang

科研成果: 期刊稿件文章同行评审

11 引用 (Scopus)

摘要

Diethylenetriamine (DETA) was non-covalently wrapped onto the surface of multi-walled carbon nanotubes (MWNTs). The surface properties of MWNTs were investigated by Fourier transform-infrared spectra (FTIR) and X-ray diffraction (XRD). Influence of MWNTs content on the free volume of epoxy/MWNTs nanocomposites was investigated by positron annihilation lifetime spectroscopy (PALS). As a result, the amine group was successfully wrapped onto the surface of MWNTs. For the nanocomposites, the free volume concentration decreased, while its size increased with the increasing MWNT content. And the impact strength was enhanced up to 100% when MWNTs-20%NH2 content was 0.6 wt%.

源语言英语
页(从-至)1016-1021
页数6
期刊Polymer - Plastics Technology and Engineering
49
10
DOI
出版状态已出版 - 2010

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