Wright, T, Carr, CM, Grant, C et al. (2 more authors) (2015) Strength of Hydroentangled Fabrics Comprising Photo-Irradiated Poly para-Phenylene Terephthalamide (PPTA) Fibres. Polymer Degradation and Stability, 121. 193 - 199. ISSN 0141-3910
Abstract
Photo-irradiation of poly para-phenylene terephthalamide (PPTA) fibre is normally associated with deterioration of physical properties. Nonwoven fabrics produced from 100% photo-irradiated PPTA fibres might therefore be expected to yield fabrics with poorer mechanical properties compared to those produced from non-irradiated fibres. To test this hypothesis, the bursting strength of hydroentangled fabrics manufactured from photo-irradiated PPTA fibres was explored. Prior to fabric manufacture, virgin PPTA staple fibres were photo-irradiated under controlled lighting conditions (xenon short arc lamp with a luminous flux of 13,000 lm) for 0, 5, 10, 20, 40, 60 and 100 h. The photo-irradiated fibres were then hydroentangled to produce nonwoven fabrics. Photo-irradiation exposure of PPTA fibre up to 30 MJ m−2 was not found to be detrimental to fabric bursting strength and at irradiation energies of 5–10 MJ m−2 a small, but statistically significant increase in fabric bursting strength was observed compared to fabrics manufactured from non-irradiated fibre. This may be linked to a change in the surface and skin properties of the PPTA photo-irradiated fibres identified by atomic force microscopy (AFM) following photo-irradiation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015, Elsevier. This is an author produced version of a paper published in Polymer Degradation and Stability. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Aramid; PPTA; Photodegradation; AFM; Bursting strength testing |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Arts, Humanities and Cultures (Leeds) > School of Design (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Nov 2015 11:03 |
Last Modified: | 16 Nov 2016 08:26 |
Published Version: | http://dx.doi.org/10.1016/j.polymdegradstab.2015.0... |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.polymdegradstab.2015.08.017 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:91984 |