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The effect of a rapid heating rate, mechanical vibration and surfactant chemistry on the structure-property relationships of epoxy/clay nanocomposites

Nuihiji, Betime, Attart, Darren, Thorogood, Gordon, Hanley, Tracey, Magniez, Kevin, Bungar, Jenny and Fox, Bronwyn 2013, The effect of a rapid heating rate, mechanical vibration and surfactant chemistry on the structure-property relationships of epoxy/clay nanocomposites, Materials, vol. 6, no. 8, pp. 3624-3640.

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Title The effect of a rapid heating rate, mechanical vibration and surfactant chemistry on the structure-property relationships of epoxy/clay nanocomposites
Author(s) Nuihiji, Betime
Attart, Darren
Thorogood, Gordon
Hanley, Tracey
Magniez, Kevin
Bungar, Jenny
Fox, Bronwyn
Journal name Materials
Volume number 6
Issue number 8
Start page 3624
End page 3640
Total pages 17
Publisher MDI Publishing
Place of publication Basel, Switzerland
Publication date 2013
ISSN 1996-1944
Keyword(s) nano-structures
vibration
mechanical properties
rheological properties
X-ray diffraction
small angle X-ray scattering
electron microscopy
Summary The role of processing conditions and intercalant chemistry in montmorillonite clays on the dispersion, morphology and mechanical properties of two epoxy/clay nanocomposite systems was investigated in this paper. This work highlights the importance of employing complementary techniques (X-ray diffraction, small angle X-ray scattering, optical microscopy and transmission electron microscopy) to correlate nanomorphology to macroscale properties. Materials were prepared using an out of autoclave manufacturing process equipped to generate rapid heating rates and mechanical vibration. The results suggested that the quaternary ammonium surfactant on C30B clay reacted with the epoxy during cure, while the primary ammonium surfactant (I.30E) catalysed the polymerisation reaction. These effects led to important differences in nanocomposite clay morphologies. The use of mechanical vibration at 4 Hz prior to matrix gelation was found to facilitate clay dispersion and to reduce the area fraction of I.30E clay agglomerates in addition to increasing flexural strength by over 40%.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, MDI Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30057642

Document type: Journal Article
Collections: Institute for Frontier Materials
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