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Shape memory polymer nanocomposites

Publication ,  Journal Article
Gall, K; Dunn, ML; Liu, Y; Finch, D; Lake, M; Munshi, NA
Published in: Acta Materialia
December 3, 2002

The paper describes the fabrication and characterization of composites with a shape memory polymer matrix and SiC nanoparticulate reinforcements. Composites based on a SMP matrix are active materials capable of recovering relatively large mechanical strains due to the application of heat. The composites were synthesized from a commercial shape memory polymer resin system and particulate SiC with an average diameter of 300 nm. Composites with weight fractions of 10%, 20%, 30%, and 40% nanoparticulate SiC were fabricated by casting samples with sizes ranging from a few hundred microns to several millimeters. The former size scale is consistent with a microcasting process for manufacturing microelectomechanical systems. The micro-hardness and elastic modulus of the nanocomposites increased by approximately a factor of 3 with the addition of 40 wt% SiC into the base resin. Unconstrained strain recoverability of the nanocomposites was found to depend on the fraction of SiC. For 180° bend tests, the recoverability of the nanocomposites was perfect for SiC weight fractions below 40%. For 40 wt% SiC, permanent bend strains were discovered. Constrained bending recovery force in the nanocomposites was shown to increase by 50% with the addition of 20 wt% SiC. © 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

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Published In

Acta Materialia

DOI

ISSN

1359-6454

Publication Date

December 3, 2002

Volume

50

Issue

20

Start / End Page

5115 / 5126

Related Subject Headings

  • Materials
  • 5104 Condensed matter physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics
 

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Gall, K., Dunn, M. L., Liu, Y., Finch, D., Lake, M., & Munshi, N. A. (2002). Shape memory polymer nanocomposites. Acta Materialia, 50(20), 5115–5126. https://doi.org/10.1016/S1359-6454(02)00368-3
Gall, K., M. L. Dunn, Y. Liu, D. Finch, M. Lake, and N. A. Munshi. “Shape memory polymer nanocomposites.” Acta Materialia 50, no. 20 (December 3, 2002): 5115–26. https://doi.org/10.1016/S1359-6454(02)00368-3.
Gall K, Dunn ML, Liu Y, Finch D, Lake M, Munshi NA. Shape memory polymer nanocomposites. Acta Materialia. 2002 Dec 3;50(20):5115–26.
Gall, K., et al. “Shape memory polymer nanocomposites.” Acta Materialia, vol. 50, no. 20, Dec. 2002, pp. 5115–26. Scopus, doi:10.1016/S1359-6454(02)00368-3.
Gall K, Dunn ML, Liu Y, Finch D, Lake M, Munshi NA. Shape memory polymer nanocomposites. Acta Materialia. 2002 Dec 3;50(20):5115–5126.
Journal cover image

Published In

Acta Materialia

DOI

ISSN

1359-6454

Publication Date

December 3, 2002

Volume

50

Issue

20

Start / End Page

5115 / 5126

Related Subject Headings

  • Materials
  • 5104 Condensed matter physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics