Polymeric thermal actuation using laminates based on polymer-clay nanocomposites

Biqiong Chen, Shuo Liu, Julian R G Evans

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Polymer and polymer-clay nanocomposite laminates were prepared as transparent thermal actuators with possible uses in automatic aeration and ventilation or as thermal switches. Low levels of smectite clay addition reduced the thermal expansion coefficient of poly(methyl methacrylate) (PMMA) but retained optical clarity and reduced water absorption. X-ray diffraction and transmission electron microscopy were used to confirm the formation of PMMA-clay nanocomposites, and dynamic mechanical analysis was used to measure thecoefficients of thermal expansion. The experimental values of the radius of curvature of the laminates from cantilever bending tests were in good agreement with the theoretical predictions for composite bars with only 4 wt % (nominally 1.3 vol %) mineral reinforcement.

Original languageEnglish
Pages (from-to)1480-1483
Number of pages4
JournalJournal of Applied Polymer Science
Volume109
Issue number3
DOIs
Publication statusPublished - 05 Aug 2008
Externally publishedYes

Keywords

  • Clay
  • Composites
  • Lamellar
  • Nanocomposites
  • Thermal properties
  • Thermoplastics

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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