Polypropylene nanocomposites based on C60-decorated carbon nanotubes: thermal properties, flammability, and mechanical properties
Article
Article Title | Polypropylene nanocomposites based on C60-decorated carbon nanotubes: thermal properties, flammability, and mechanical properties |
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Article Category | Article |
Authors | Song, Pingan (Author), Zhao, Liping (Author), Cao, Zhenhu (Author) and Fang, Zhengping (Author) |
Journal Title | Journal of Materials Chemistry |
Journal Citation | 21 (21), pp. 7782-7788 |
Number of Pages | 7 |
Year | 2011 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 0959-9428 |
1364-5501 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c1jm10395d |
Web Address (URL) | https://pubs.rsc.org/en/content/articlelanding/2011/JM/c1jm10395d |
Abstract | In the present study, the effects of covalently functionalized carbon nanotubes (CNTs) decorated with C60 (abbr. C60-d-CNT) on thermal, flame retardancy and mechanical properties of polypropylene (PP) are investigated. Compared with pristine CNTs, the C60-d-CNT is more easily dispersed in the PP matrix through reactive compatibilization. With the incorporation of C60-d-CNT, thermal oxidation degradation of PP is considerably delayed. Compared to PP, at 1.0 wt% loading of C 60-d-CNT, the initial degradation temperature (T5) and maximum weight loss temperature (Tmax) in air are enhanced by 68°C and 87°C, respectively. Furthermore, incorporating 1.0 wt% C 60-d-CNT can remarkably reduce the peak heat release rate (PHRR) by 71% relative to that of PP, and slow down the combustion process to some extent. The free-radical trapping effect of C60 and the CNTs network are responsible for the improved thermal and flame retardancy properties. Meanwhile, addition of C60-d-CNT also causes enhanced mechanical properties of PP nanocomposites to a certain degree. |
Keywords | combustion process; degradation temperatures; flame retardancy; functionalized carbon nanotubes; peak heat release rates; polypropylene nanocomposites |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry 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/q4136/polypropylene-nanocomposites-based-on-c60-decorated-carbon-nanotubes-thermal-properties-flammability-and-mechanical-properties
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