Design and characterisation of bicomponent polyamide 6 fibres with specific locations of each flame retardant component for enhanced flame retardancy

Horrocks, Richard ORCID: 0000-0003-1431-058X, Sitpalan, Ahilan and Kandola, Baljinder K. ORCID: 0000-0002-3621-3724 (2019) Design and characterisation of bicomponent polyamide 6 fibres with specific locations of each flame retardant component for enhanced flame retardancy. Polymer Testing, 79 (106041). ISSN 0142-9418

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Abstract

Bicomponent filaments of polyamide 6 (PA6) were produced with core/sheath geometries containing aluminium diethyl phosphinate (AlPi), and/or a montmorillonite nanoclay located individually or together in the sheath or core. A characterisation protocol based on thermogravimetric analysis (TGA) under both flowing air and nitrogen and pyrolysis combustion flow calorimetry (PCFC) enabled the effects of AlPi, clay and atmospheric oxygen to be assessed on PA6 thermal degradation. Knitted fabrics were assessed for flammability by vertical strip testing, which demonstrated that the relative location of the clay and flame retardant has a significant effect on burning behaviour. Correlation of the TGA/DTG, PCFC and burning sample results were discussed in terms of the effects of the roles of atmospheric oxygen and flame retardant components on the thermal degradation of PA6, especially when located in the sheath.

Item Type: Article
Additional Information: © 2019. This manuscript version will be made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Polyamide 6, bicomponent fibre, montmorillonite clay, aluminium diethyl phosphinate, flammability, thermal degradation
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 23 Oct 2019 08:16
Last Modified: 04 Nov 2019 20:08
Identification Number: 10.1016/j.polymertesting.2019.106041
URI: http://ubir.bolton.ac.uk/id/eprint/2575

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