Department head and associate professor, School of Engineering and Engineering Technology, Federal University of Technology, Owerri,
(Received 22 May 1991; accepted 16 July 1992)
The tensile properties of cotton and polyester-cotton woven fabrics have been analyzed in terms of the breaking load, breaking extension, breaking elongation, and elongation at 1 kg (1% full-scale-deflexion (FSD)) using the Instron Tensile Tester, Model 1026. Changes in tensile properties of the woves fabrics as a consequence of wear using the Accelerotor Abrasion Tester in wet conditions are illustrated. The tensile properties before and after abrasion and the effect of abrasion damage on the tensile properties were determined. The Spearman rank correlation coefficient was used to determine the interrelationship between the tensile properties and percentage loss in weight. Relationships between the tensile properties, mass, thickness, density, and specific volume of these fabrics before abrasion are also reported. A significant positive correlation (at 5% and 1% levels) was obtained between breaking load, breaking extension, and breaking elongation, and between breaking extension and breaking elongation in both wet and damp abrasion. Determination of a simple paired t-test showed that there was no significant difference between the unabraded and abraded fabrics (wet and damp), or between wet and damp abraded fabrics at the 95% confidence interval with respect to tensile properties.
Paper ID: JTE11746J