C60 reduces the flammability of polypropylene nanocomposites by in situ forming gelled-ball network
Article
Article Title | C60 reduces the flammability of polypropylene nanocomposites by in situ forming gelled-ball network |
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ERA Journal ID | 5163 |
Article Category | Article |
Authors | Song, Pingan (Author), Zhu, Yan (Author), Tong, Lifang (Author) and Fang, Zhengping (Author) |
Journal Title | Nanotechnology |
Journal Citation | 19 (22) |
Number of Pages | 10 |
Year | 2008 |
Place of Publication | United Kingdom |
ISSN | 0957-4484 |
1361-6528 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/0957-4484/19/22/225707 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/0957-4484/19/22/225707 |
Abstract | The thermal and flame retardancy properties of polypropylene/fullerene (PP/C60) nanocomposites were investigated by thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and cone calorimetry with the C60 loading varied from 0.5 to 2% by weight. Dispersion of C60 in the PP matrix was characterized by transmission electron microscopy (TEM) and optical microscopy (OM). TGA and DSC results showed that the presence of C60 could remarkably enhance the thermal property and cone calorimeter measurements suggested that C60 could to some extent reduce the flammability of PP, with a significant reduction in peak heat release rate and a much longer time to ignition. Furthermore, the larger the loading level of C60, the better the flame retardancy property of PP/C60 nanocomposites. The flame retardation mechanism and corresponding model were proposed with the help of rheological measurements, TEM and x-ray diffraction. C60 reduced the flammability of PP by trapping free radicals in the gas phase and in situ forming a gelled-ball crosslink network to improve the flame retardancy of PP in the condensed phase. Finally, this suggested mechanism was supported by the results of advanced rheological extended systems (ARES), gel content, infrared spectrum, OM, and atomic force microscopy (AFM) measurements. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Zhejiang University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q50y0/c60-reduces-the-flammability-of-polypropylene-nanocomposites-by-in-situ-forming-gelled-ball-network
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