Amino functionalization of multiwalled carbon nanotubes by gamma ray irradiation and its epoxy composites
| Autor: | Chunhua Zhang, Zhibo Wang, Linghui Meng, Yuyan Liu, Fenglei Zhu |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Thermogravimetric analysis
Nanocomposite Materials science Polymers and Plastics Scanning electron microscope General Chemistry Epoxy Carbon nanotube law.invention law visual_art Ultimate tensile strength Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Surface modification Composite material In situ polymerization |
| Zdroj: | Polymer Composites. 33:267-274 |
| ISSN: | 0272-8397 |
| DOI: | 10.1002/pc.22144 |
| Popis: | In this paper, γ-ray radiation technique was utilized to simply functionalize multi-walled carbon nanotube (MWCNT) with amino groups. The successful amino functionalization of MWCNTs (MWCNTs-Am) was proven and the physicochemical properties of MWCNTs before and after radiation grafting modifications were characterized using FT-IR, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). The results indicated that the γ-ray radiation had the visible effects on the surface properties of MWCNTs. The effects of various functionalized MWCNTs on morphological, thermal, and mechanical properties of an epoxy-based nanocomposite system were investigated. Utilizing in situ polymerization, 1 wt% loading of MWCNT was used to prepare epoxy-based nanocomposites. Compared to the neat epoxy system, nanocomposites prepared with MWCNT-Am showed 13.0% increase in tensile strength, 20.0% increase in tensile modulus, and 24.1% increase in thermal decomposition temperature. POLYM. COMPOS., 2012. © 2011 Society of Plastics Engineers |
| Databáze: | OpenAIRE |
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