Journal
POLYMER DEGRADATION AND STABILITY
Volume 98, Issue 5, Pages 1043-1051Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2013.02.002
Keywords
Agro-materials; Flax short fibres; Pea proteins; Flame retardants; Combustion; Pyrolysis
Categories
Funding
- European Union
- Walloon Region
- European Funds for Regional Development FEDER
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Improving fire resistance of lignocellulosic agro-materials is essential to extend their application domain. In this study, flame retardant agents, among which aluminium tri-hydroxide (ATH), zinc borate (ZB), melamine phosphate (MMP) and melamine borate (MMB), were incorporated in insulating materials based on flax short fibres. All flame retardant fillers were fixed firmly and permanently on the flax fibres using a protein binder. The incorporation was also homogeneous and preserved materials open porosity and expanded structure. Flame retardancy was characterized by Mass Loss cone calorimetry and UL 94 horizontal burning test. Materials morphology and thermal degradation were also investigated by scanning electron microscopy (SEM) and thermo-gravimetric analysis (TGA). Among all tested flame retardants, the best results were obtained with MMB. Immediate flame extinction was already achieved at 10 wt% loading rate, whereas the ignition time increased up to 6 times at 30 wt%, compared to the reference. (C) 2013 Elsevier Ltd. All rights reserved.
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