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International Journal of Chemical Engineering
Volume 2018, Article ID 6329651, 8 pages
https://doi.org/10.1155/2018/6329651
Research Article

Effect of Carbon Nanotubes on the Microstructure and Thermal Property of Phenolic/Graphite Composite

1Faculty of Chemical Technology, Hanoi University of Industry, BacTuLiem, Hanoi, Vietnam
2Institute of Chemistry and Materials, 17 Hoang Sam, Cau Giay, Hanoi, Vietnam
3Institute of Chemistry-Biology and Professional Documents, 47 Pham Van Dong, Cau Giay, Hanoi, Vietnam
4Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, CauGiay, Hanoi, Vietnam

Correspondence should be addressed to Tuan Anh Nguyen; nv.tsav.tti@hnatn

Received 10 May 2018; Revised 19 July 2018; Accepted 26 July 2018; Published 2 September 2018

Academic Editor: Maurizio Volpe

Copyright © 2018 The Huu Nguyen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this work, composites based on phenolic resin (P), graphite powder (G), carbon fibers (CFs), and carbon nanotubes (CNTs) were prepared by using hot compression molding. The effect of CNTs on the microstructure and thermal property of these composites was investigated. FESEM analysis indicated that the surface structure of phenolic/graphite composites became more dense and homogeneous with the presence of CNTs. The carbonization behavior of composites was characterized by using thermal gravimetric analyses (TGAs). TGA data showed that the presence of CNTs in phenolic/graphite composites enhanced their thermal stability, by increasing the temperature of maximum weight loss rate (Tm) during pyrolysis and decreasing the weight loss after pyrolysis. In addition, incorporation of CNTs into phenolic/graphite composites reduced significantly their open porosity.