Applied Surface Science, Vol.360, 1009-1015, 2016
Characteristics of fluorinated CNTs added carbon foams
To fabricate carbon foams with high compressive strength and thermal conductivity, carbon foams were prepared by curing and heat treatment of a polymer solution containing CMC, isotropic pitch and fluorinated CNTs. The CNTs were fluorinated at different fluorine gas pressures (F-2:N-2 = 3:7, 5:5, and 7:3). The highly heat-treated carbon foams containing fluorinated CNTs prepared with F-2:N-2 = 5:5 had the highest thermal conductivity of 3.18 +/- 0.01 W/mK, and compressive strength of 2.42 +/- 0.22 MPa, which were approximately 15% and 133% higher, respectively, than those of the highly heat-treated carbon foams containing un-fluorinated CNTs due to increased crystallinity of CNTs and their adhesion with pitches in highly heat-treated carbon foams through fluorination of CNTs. (C) 2015 Elsevier B.V. All rights reserved.