Journal
COMPOSITES PART B-ENGINEERING
Volume 67, Issue -, Pages 22-29Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2014.06.022
Keywords
Carbon fiber; Thermal properties; Micro-mechanics; Thermal analysis
Funding
- Defense Acquisition Program Administration
- Agency for Defense Development (ADD) [UD070009AD]
- BK21 program
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The ablation properties and thermal conductivity of carbon nanotube (CNT) and carbon fiber (CF)/phenolic composites were evaluated for different filler types and structures. It was found that the mechanical and thermal properties of phenolic-polymer matrix composites were improved significantly by the addition of carbon materials as reinforcement. The concentrations of CF and CNT reinforcing materials used in this study were 30 vol% and 0.5 wt%, respectively. The thermal conductivity and thermal diffusion of the different composites were observed during ablation testing, using an oxygen-kerosene (1:1) flame torch. The thermal conductivity of CF mat/phenolic composites was higher than that of random CF/phenolic composites. Both CF mat and CNT/phenolic composites exhibited much better thermal conductivity and ablation properties than did neat phenolic resin. The more conductive carbon materials significantly enhanced the heat conduction and dissipation from the flame location, thereby minimizing local thermal damage. (C) 2014 Elsevier Ltd. All rights reserved.
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