Rheological and mechanical properties of percolated cyanate ester nanocomposites

The rheological properties and mechanical properties of percolated cyanate ester monomer/layered silicate mixtures are reported. A number of different cation exchanged montmorillonites were examined in an effort to achieve maximal montmorillonite delamination. The dispersion throughout the cyanate e...

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Bibliographic Details
Published inPolymer (Guilford) Vol. 46; no. 19; pp. 8011 - 8017
Main Authors Wooster, Tim J., Abrol, Simmi, MacFarlane, Douglas R.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 08.09.2005
Elsevier
Subjects
Applied sciences
Composites
Cyanate ester
Exact sciences and technology
Forms of application and semi-finished materials
Montmorillonite
Polymer industry, paints, wood
Rheology
Technology of polymers
Montmorillonite
Rheology
Cyanate ester
Clay
Cyanate resin
Organic clay
Molten state
Mechanical properties
Experimental study
Crack propagation resistance
Bending strength
Concentration effect
Nanocomposite
Rheological properties
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Summary:The rheological properties and mechanical properties of percolated cyanate ester monomer/layered silicate mixtures are reported. A number of different cation exchanged montmorillonites were examined in an effort to achieve maximal montmorillonite delamination. The dispersion throughout the cyanate ester of a montmorillonite with phenylated ammonium cations (2MBHT MMT) results in the formation of a percolated network. The rheology of this percolated network undergoes a viscous liquid to elastic solid transition at 4wt% montmorillonite. The percolation of the montmorillonite in the cyanate ester results in a significant improvement in crack resistance (80%) without a sacrifice of flexural strength.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2005.06.106