Electromagnetic Interference Shielding and Mechanical Properties of Maleic Anhydride Functionalized MWNT and Poly (urea urethane) Nanocomposites

Abstract:

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The functionalized multiwall carbon nanotubes (MWNTs) have been prepared by free radical reaction with maleic acid and maleic anhydride. The functionalized MWNT was further blended with poly(dimethylsiloxane) (PDMS) based Poly(urea-urethane) (PUU). Both maleic acid modified MWNT (Maa-g-MWNT) and maleic anhydride modified MWNT (Mah-g-MWNT) showed enhanced dispersion compared with that of pristine MWNT and PUU.For MWNT/PUU nanocomposites containing 5 phr functionalized MWNT, the maximum microwave absorption was -19.2 dB for Maa-g-MWNT/PUU nanocomposites and was -22 dB for Mah-g-MWNT/PUU nanocomposites.

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:

789-792

DOI:

10.4028/www.scientific.net/KEM.334-335.789

Citation:

H. L. Wu et al., "Electromagnetic Interference Shielding and Mechanical Properties of Maleic Anhydride Functionalized MWNT and Poly (urea urethane) Nanocomposites", Key Engineering Materials, Vols. 334-335, pp. 789-792, 2007

Online since:

March 2007

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$35.00

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