Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/24960
Title: Effect of specimen size and strain rate on the tensile properties of heat-sealed and needle-punched nonwoven fabrics
Authors: Patel, P C
Kothari, V K
Keywords: Heat-sealed nonwoven fabric;Needle-punched nonwoven fabric;Strain rate;Tensile properties
Issue Date: Dec-2001
Publisher: NISCAIR-CSIR, India
Abstract: The tensile behaviour of heat-sealed and needle-punched spunbonded nonwoven fabrics has been evaluated by conventional narrow-strip and wide-width test methods using a wide range of strain rates. The tensile properties of these fabrics are influenced by the specimen size and strain rate, depending on the fabric structure. The initial modulus obtained from narrow-strip test is found to be significantly lower as compared to that obtained from wide-width test of needle punched nonwoven fabrics, while the specimen width has very little effect on the initial modulus in case of heat-sealed nonwoven fabrics. The breaking stress of narrow-strip samples is always lower than that of the wide-width samples, irrespective of structure type. The effect of strain rate on breaking extension is marginal in case of needle-punched fabrics but significant in case of heat-sealed fabrics. The fabric structure influences the tensile behaviour of both heat-sealed and needle-punched nonwoven fabrics in general and at slow strain rates in particular.
Page(s): 409-413
URI: http://hdl.handle.net/123456789/24960
ISSN: 0975-1025 (Online); 0971-0426 (Print)
Appears in Collections:IJFTR Vol.26(4) [December 2001]

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