Song, Pingan and Cao, Zhenhu and Cai, Yuanzheng and Zhao, Liping and Fang, Zhengping and Fu, Shenyuan (2011) Fabrication of exfoliated graphene-based polypropylene nanocomposites with enhanced mechanical and thermal properties. Polymer, 52 (18). pp. 4001-4010. ISSN 0032-3861
Abstract
Abstract: Despite the great potential of graphene as the nanofiller, to achieve homogeneous dispersion remains the key challenge for effectively reinforcing the polymer. Here, we report an eco-friendly strategy for fabricating the polymer nanocomposites with well-dispersed graphene sheets in the polymer matrix via first coating graphene using polypropylene (PP) latex and then melt-blending the coated graphene with PP matrix. A ∼75% increase in yield strength and a ∼74% increase in the Young's modulus of PP are achieved by addition of only 0.42 vol% of graphene due to the effective external load transfer. The glass transition temperature of PP is enhanced by ∼2.5 °C by incorporating only 0.041 vol% graphene. The thermal oxidative stability of PP is also remarkably improved with the addition of graphene, for example, compared with neat PP, the initial degradation temperature is enhanced by 26 °C at only 0.42 vol% of graphene loading.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Files associated with this item cannot be displayed due to copyright restrictions. |
| Faculty/School / Institute/Centre: | No Faculty |
| Date Deposited: | 05 Jun 2017 22:30 |
| Last Modified: | 05 Jun 2017 22:30 |
| Uncontrolled Keywords: | grapheme; polypropylene; mechanical properties; thermal properties |
| Fields of Research : | 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030304 Physical Chemistry of Materials |
| Socio-Economic Objective: | E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences |
| Identification Number or DOI: | 10.1016/j.polymer.2011.06.045 |
| URI: | http://eprints.usq.edu.au/id/eprint/31643 |
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