Thermal Conductivity of Polyimide/Carbon Nanofiller Blends

Abstract:

Article Preview

In efforts to improve the thermal conductivity (TC) of Ultem™ 1000, it was compounded with three carbon based nano-fillers. Multiwalled carbon nanotubes (MWCNT), vapor grown carbon nanofibers (CNF) and expanded graphite (EG) were investigated. Ribbons were extruded to form samples in which the nano-fillers were aligned. Samples were fabricated by compression molding where the nano-fillers were randomly oriented. The thermal properties were evaluated by DSC and TGA, and the mechanical properties of the aligned samples were determined by tensile testing. The degree of dispersion and alignment of the nanoparticles were investigated with high-resolution scanning electron microscopy. The thermal conductivity was measured in two directions using the Nanoflash technique.

Info:

Periodical:

Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang

Pages:

749-752

Citation:

S. Ghose et al., "Thermal Conductivity of Polyimide/Carbon Nanofiller Blends", Key Engineering Materials, Vols. 334-335, pp. 749-752, 2007

Online since:

March 2007

Export:

Price:

$38.00

[1] E. Hammel, X. Tang, et al. Carbon, 42 (2004) 1153-1158.

[2] K. Lozano, S. Yang and Q. Zeng, J. Appl. Poly. Sc., 93 (2004) 155-162.

[3] C.A. Cooper, D. Ravich, D. Lips, J. Mayer and H.D. Wagner, Composites Sc. Tech., 62 (2002) 1105.

[4] L.T. Drzal and H. Fukushima, US Patent Application Publication, Pub No. US20040127621 (2004).

[5] X. Gao, L. Liu, Q. Guo, J. Shi and G. Zhai, Materials Letters, 59 (2004) 3062-3065.

[6] C. Park, Z. Ounaies, et al. Chem. Phys. Lett.; 364 (2002) 303.

[7] C.H. Liu, H. Huang, Y. Wu and S.S. Fan, Appl. Phys. Lett, 84 (2004) 4248-4250.

[8] P. Kim, L. Shi, A. Majumdar and P.L. McEuen, Phys. Rev. Lett. 87 (2001) 215502. Fig. 2 TC of molded Ultem™/nanofiller samples; measurement along direction of alignment.

Fetching data from Crossref.
This may take some time to load.