Effects of pH on the stress-strain properties of wool fabric

Li, Qinq, Brady, Peter Rex and Wang, Xungai 2012, Effects of pH on the stress-strain properties of wool fabric, Journal of the textile institute, vol. 103, no. 2, pp. 210-214.

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Title Effects of pH on the stress-strain properties of wool fabric
Author(s) Li, Qinq
Brady, Peter Rex
Wang, Xungai
Journal name Journal of the textile institute
Volume number 103
Issue number 2
Start page 210
End page 214
Total pages 5
Publisher Taylor & Francis
Place of publication London England
Publication date 2012
ISSN 0040-5000
1754-2340
Keyword(s) wool fabric
fabric pH
fabric extensibility
wool hygral expansion
fabric stress–strain property
Summary In wool dyeing and finishing processes, fabric is often treated under conditions of different pHs and is subjected to a variety of physical and chemical environments. This work investigates fabric tensile properties at three different fabric pHs. Wool fabric extensibility under a 5 N/cm load was observed to be greatest at the wool isoelectric point of pH 4.8 and lower at both pH 2.1 and pH 7.2. The impact of pH on fabric extensibility was found to be similar to the variation in fabric hygral expansion previously observed. Fabric stress–strain curves at different pHs showed that for a given fabric extension level, the work required to stretch a fabric was less at pH 2.1 than at pH 4.8. These results suggest that the strength of wool fabric is at maximum when the pH of the fibres is close to the wool isoelectric point and that for consistency, the pH of fabric should be adjusted before standard strength tests are carried out.
Language eng
Field of Research 091012 Textile Technology
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, The Textile Institute
Persistent URL http://hdl.handle.net/10536/DRO/DU:30044361

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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