Flame Retardancy Index for thermoplastic composites

Vahabi, Henri, Kandola, Baljinder K. ORCID: 0000-0002-3621-3724 and Saeb, Mohammad Reza (2019) Flame Retardancy Index for thermoplastic composites. Polymers, 11 (3). p. 407. ISSN 2073-4360

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Abstract

Abstract: Flame Retardancy Index, FRI, was defined as a simple yet universal dimensionless criterion born out of cone calorimetry data on thermoplastic composites and then put into practice for quantifying the flame retardancy performance of different polymer composites on a set of reliable data. Four types of thermoplastic composites filled with a wide variety of flame retardant additives were chosen for making comparative evaluations regardless of the type and loading level of the additive as well as the irradiance flux. The main features of cone calorimetry including peak of Heat Release Rate (pHRR), Total Heat Release (THR), and Time-To-Ignition (TTI) served to calculate a dimensionless measure that reflects an improvement in the flame retardancy of nominated thermoplastic composites with respect to the neat thermoplastic, quantitatively. A meaningful trend was observed among well-classified ranges of FRI quantities calculated for the studied dataset on thermoplastic composites by which “Poor”, “Good”, and “Excellent” flame retardancy performances were explicitly defined and exhibited on logarithmic scales of FRI axis. The proposed index remains adaptable to thermoplastic systems whatever the polymer or additive is.

Item Type: Article
Uncontrolled Keywords: Flame Retardancy Index (FRI), fire retardancy performance, thermoplastics, cone calorimetry
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 08 Mar 2019 09:56
Last Modified: 08 Mar 2019 09:56
Identification Number: 10.3390/polym11030407
URI: http://ubir.bolton.ac.uk/id/eprint/2154

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