Investigation of the Microstructure of Epoxy Resin/MWNTs Nanocomposite by the Positron Annihilation Technique

被引：10
作者：
Zheng, Ya-Ping [1 ]
Zhang, Jiao-Xia [1 ]
Yu, Pei-Ying [1 ]
Shi, Wei [1 ]
Wang, Bo [2 ]
机构：
[1] NW Polytech Univ, Dept Appl Chem, Sch Nat & Appl Sci, Xian 710072, Peoples R China
[2] Wuhan Univ, Sch Phys & Technol, Wuhan, PR, Peoples R China
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2010年 / 49卷 / 10期
关键词：
Diethylenetriamine; Free volume; Multi-walled carbon nanotubes; Nanocomposites; Positron annihilation lifetime spectroscopy; WALLED CARBON NANOTUBES; TRANSFER RADICAL POLYMERIZATION; FUNCTIONALIZATION; POLYMERS; COMPOSITES;
D O I：
10.1080/03602559.2010.482082
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
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%NH(2) content was 0.6 wt%.
引用
收藏
页码：1016 / 1021
页数：6
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