Fire reaction properties of flax/epoxy laminates and their balsa-core sandwich composites with or without fire protection

Kandare, E., Luangtriratana, Piyanuch ORCID: 0000-0001-8745-079X and Kandola, Baljinder K. ORCID: 0000-0002-3621-3724 (2014) Fire reaction properties of flax/epoxy laminates and their balsa-core sandwich composites with or without fire protection. Composites Part B : Engineering, 56. pp. 602-610. ISSN 1359-8368

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Abstract

Fire reaction properties of flax/epoxy laminates and their corresponding balsa-core sandwich composites with/without fire protection were evaluated at an applied heat flux of 50 kW/m2. A strategy for improving the fire reaction properties of flax/epoxy composite materials without adversely altering their intrinsic mechanical properties was investigated. A thin glass fiber veil impregnated with ammonium polyphosphate was bonded onto the composite surface intended for heat exposure. There was no significant change in the time-to-ignition with the introduction of the fire retardant glass fiber veil. While similar PHRR values were measured in both flax/epoxy laminates and balsa-core sandwich composites, the total heat release was significantly higher in the later. It is noteworthy, the heat release rates (including the peak values) measured for fire-protected composites were significantly lower than those measured for their unprotected counterparts. Through-thickness temperature profiles across the sandwich composite revealed the effectiveness of the fire retardant veil in minimizing thermal damage of underlying substrate composites.

Item Type: Article
Uncontrolled Keywords: Laminates, Polymer-matrix composites, High temperature properties, Thermal analysis, Fire retardation
Divisions: School of Engineering > Engineering
University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 22 Mar 2018 12:59
Last Modified: 22 Mar 2018 12:59
Identification Number: 10.1016/j.compositesb.2013.08.090
URI: http://ubir.bolton.ac.uk/id/eprint/1568

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