Issue 32, 2012
From the journal:

Journal of Materials Chemistry

Graphite oxide, graphene, and metal-loaded graphene for fire safety applications of polystyrene

Chenlu Bao,a   Lei Song,a   Charles A. Wilkie,b   Bihe Yuan,a   Yuqiang Guo,a   Yuan Hu*a  and  Xinglong Gong*ac  

* Corresponding authors

a State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
E-mail: yuanhu@ustc.edu.cn
Fax: +86-551-3601664
Tel: +86-551-3601664

b Department of Chemistry and Fire Retardant Research Facility, Marquette University, PO Box 1881, Milwaukee, WI, USA

c CAS Key Laboratory of Mechanical Behaviour and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
E-mail: gongxl@ustc.edu.cn
Fax: +86-551-3600419
Tel: +86-551-3600419

Abstract

Graphite oxide, graphene, ZrO2-loaded graphene and β-Ni(OH)2-loaded graphene (joint appellation: Gs) were prepared and incorporated into polystyrene so as to improve the fire safety properties of polystyrene. By the masterbatch-melt blending technique, Gs nanolayers were well dispersed and exfoliated in polystyrene as thin layers (thickness 0.7–2 nm). The fire safety properties were visibly improved, including an increased thermal degradation temperature (18 °C, PS/Ni–Gr-2), decreased peak heat release rate (40%, PS/Zr–Gr-2) and reduced CO concentration (54%, PS/Ni–Gr-2). The mechanism for the improved thermal stability and fire safety properties was investigated based on this study and previous works. The physical barrier effect of graphene, the interaction between graphene and polystyrene, and the synergistic effect of the metal compounds are the causes for the improvements.

Graphical abstract: Graphite oxide, graphene, and metal-loaded graphene for fire safety applications of polystyrene

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Article information

DOI
https://doi.org/10.1039/C2JM32500D
Article type
Paper
Submitted
20 Apr 2012
Accepted
11 Jun 2012
First published
13 Jun 2012

J. Mater. Chem., 2012,22, 16399-16406

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Graphite oxide, graphene, and metal-loaded graphene for fire safety applications of polystyrene

C. Bao, L. Song, C. A. Wilkie, B. Yuan, Y. Guo, Y. Hu and X. Gong, J. Mater. Chem., 2012, 22, 16399 DOI: 10.1039/C2JM32500D

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