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
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
Collection year 2006
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, 10:43:08 EST