Preparation of Carbon Monoliths by a Simple Polymer Blend Technique

Abstract:

Porous carbon monoliths are prepared by carbonization of a simple polymer blend, in which phenolic resin (PF) as carbon precursor, polyvinyl butyral as pore former and activated carbon as conducting additive and contraction inhibitor are used to make polymer blend. The results show that the carbon monoliths, with a narrow pore size distribution with mean controlled diameters in the sub-micron/micron range, can be easily produced by controlling the stabilization temperature of the PF, the carbonization temperature, and particle diameters of the precursor powders. The pore size decrease as the stabilization temperature of the PF increases or the particle diameters of the precursor powders decreases. The electrical resistance of the carbon monoliths decreases as the carbonization temperature increases, but the average pore diameter and volume of the carbon monoliths are almost constant as the carbonization temperature increases.

• Periodical: Applied Mechanics and Materials (Volume 700)
• Pages: 125-131
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.700.125
• Online since: December 2014
• Authors: Jie Cheng*, Han Min Liu, Dong Chen, Yue Hua Wen, Gao Ping Cao
• Keywords: Carbon Monoliths, Phenolic Resin, Polymer Blend

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