Visoelastic studies on thermoplastic polyurethane nanocomposites using a nano-hardness tester

Rivera, I., Martin, D J and Truss, R W (2006) Visoelastic studies on thermoplastic polyurethane nanocomposites using a nano-hardness tester. Journal of Polymer Engineering, 28 8-9: 903-918.


Author Rivera, I.
Martin, D J
Truss, R W
Title Visoelastic studies on thermoplastic polyurethane nanocomposites using a nano-hardness tester
Journal name Journal of Polymer Engineering   Check publisher's open access policy
ISSN 0334-6447
0250-8079
Publication date 2006-01-01
Sub-type Article (original research)
Volume 28
Issue 8-9
Start page 903
End page 918
Total pages 16
Editor I. Manas-Zloczower
Place of publication Tel Aviv, Israel
Publisher Freund Publishing House Ltd
Language eng
Subject C1
291402 Composite Materials
670705 Plastic products (incl. construction materials)
Abstract The viscoelastic behaviour of a range of polyurethane thermoplastic elastomer montmorillonite nanocomposites has been studied using a nanohardness tester. For softer Shore hardness 80A materials, the introduction of the organo-clay increased the creep strain obtained while the nano-indentor was held at constant load. The increase in creep strain was greatest for materials containing an organo-clay modified with a more hydrophilic quaternary alkylammonium surfactant and with higher loadings of the hydrophilic organo-clay. This suggested the effect might be due to a plasticising effect of the excess surfactant. For the harder Shore hardness 55D materials, the addition of the organo-clays produced only a small decrease in the creep strain, probably due to the interconnected hard domains in this material.
Keyword Polymer Science
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 20:43:08 EST