Effects of Foaming Condition on the Performance of Bituminous Coal-Derived Carbon Foams

Abstract:

carbon foams were prepared using a medium rank bituminous coal in this paper. The influence of foaming temperature, foaming pressure and time of releasing pressure on open porosity, bulk density and pore morphology of carbon foam were discussed, respectively. The bulk density and true density were tested. The texture of the carbon foams was characterized by scanning electron microscopy. The results show that the pores diameter of carbon foam derived from coal is more uniform, which is in range of 100μm-200μm. Nevertheless, there are a spot of irregular large holes. Foaming temperature is key fact and the suitable foaming temperature must be near to the maximum fluidity temperature of coal. With the foaming pressure increasing, the open porosity reduces, the bulk density increases and the pores diameter gets smaller and more regular.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 1186-1191
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.1186
• Online since: July 2012
• Authors: Guo Zhong Xu, Xiang Yun Zhong, Zhen Ning Zhao
• Keywords: Bituminous Coal, Carbon Foam, Open Porosity

References

[1] Ford W, Method of making cellular refractory thermal insulating material, US Patent: US 3121050, 1964.

[2] LI Kai, LUAN Zhi-qiang, 2004, 19 (1): 772 78.

[3] N.C. Gallego, J.W. Klett. Carbon, 2003 41(7): 1461-1466.

[4] A.H. Stiller, P.G. Stansberry, J.W. Zondlo. Method of making a carbon foam material and resultant product. US Patent: US 5888469. (1999).

[5] Chong Chen, E.B. Kennel, Stiller, et al. Carbon, 2006, 44(8): 1535-1543

[6] A Yocum, J Plucinski, A.H. Stiller. Method of making a carbon foam material and resultant product [P]. US Patent: US6506354.( 2003)

[7] QIU Jie-shan, LI Ping, LIU Gui-shan. New Carbon Materials, 2005, 20 (3): 193-197 ()

[8] Klett JW, International SAMPE Symposium and Exhibition (proceedings), 1998, 43 (1) : 745-755.

[9] J.W. Klett, Process for making carbon foam. US Patent: US6033506.( 2000)

[10] CAO Min, ZHANG Shu, WANG Yong-gang. New Carbon Materials, 2005, 20 (2): 134-138.

[11] TONG-Q i Li, Cheng-Yang Wang, Bing-Xue An, et al. Carbon, 2005, 43: 20132-2032.

[12] Zhang Hong-bo, Luo Rui-ying, Liu Tao, et al . Carbon Techniques, 2005, 24 (1): 21-25.

[13] J.W. Klett, T.D. Burchell. Pitch-based carbon foam heat sink with phase change material. US Patent: US6399149.(2002)

[14] J.W. Klett, A. Choudhury, T.D. Burchell. Pitch-based carbon foam and composites and use thereof. US Patent: US2002141932.( 2002)

[15] N.C. Gallego, S. Albert, D.P. Stinton, et al. Graphite foam for cooling of automotive power electronics [C]. Power Electronics in Transportation, 2004, 61-65

[16] J.W. Klett, M. Trammell. Performance of a graphite foam thermosyphon for cooling integrated circuits. Power Electronics in Transportation, 2004, 101-106

[17] D.K. Rogers, J.W. Plucinski, R.A. Handley. Proceedings of Carbon Conference. Americal Carbon Society, Lexington, KY, USA, Section. 8, Paper 81.

[18] Montserrat Calvo, Roberto Garcia, Ana Arenillas, Isabel Suarez, Sabino R, Moinelo. Fuel, 2005, 84: 2184-2189.