Jump to main content
Jump to site search

Issue 1, 2016
Previous Article Next Article

Micro-mechanics of nanostructured carbon/shape memory polymer hybrid thin film

Author affiliations

Abstract

This paper investigates the mechanics of hybrid shape memory polymer polystrene (PS) based nanocomposites with skeletal structures of CNFs/MWCNTs formed inside. Experimental results showed an increase of glass transition temperature (Tg) with CNF/MWCNT concentrations instead of a decrease of Tg in nanocomposites filled by spherical particles, and an increase in mechanical properties on both macro- and μm-scales. Compared with CNFs, MWCNTs showed a better mechanical enhancement for PS nanocomposites due to their uniform distribution in the nanocomposites. In nanoindentation tests using the Berkovich tips, indentation size effects and pile-up effects appeared obviously for the nanocomposites, but not for pure PS. Experimental results revealed the enhancement mechanisms of CNFs/MWCNTs related to the secondary structures formed by nanofillers, including two aspects, i.e., filler–polymer interfacial connections and geometrical factors of nanofillers. The filler–polymer interfacial connections were strongly dependent on temperature, thus leading to the opposite changing trend of loss tangent with nanofiller concentrations, respectively, at low and high temperature. The geometrical factors of nanofillers were related to testing scales, further leading to the appearance of pile-up effects for nanocomposites in the nanoindentation tests, in which the size of indents was close to the size of the nanofiller skeleton.

Graphical abstract: Micro-mechanics of nanostructured carbon/shape memory polymer hybrid thin film

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 May 2015, accepted on 01 Oct 2015 and first published on 01 Oct 2015


Article type: Paper
DOI: 10.1039/C5SM01269D
Author version
available:
Download author version (PDF)
Citation: Soft Matter, 2016,12, 106-114
  • Open access: Creative Commons BY license
  •   Request permissions

    Micro-mechanics of nanostructured carbon/shape memory polymer hybrid thin film

    M. Lei, B. Xu, Y. Pei, H. Lu and Y. Q. Fu, Soft Matter, 2016, 12, 106
    DOI: 10.1039/C5SM01269D

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements