Flame retardant treatments of insulating agro-materials from flax short fibres

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 materia...

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Bibliographic Details
Published in:Polymer degradation and stability 2013-05, Vol.98 (5), p.1043-1051
Main Authors: Lazko, J., Landercy, N., Laoutid, F., Dangreau, L., Huguet, M.H., Talon, O.
Format: Article
Language:English
Subjects:
Agro-materials
Aluminum
Applied sciences
Binders
burning
calorimetry
Combustion
Compounding ingredients
Exact sciences and technology
Fibers and threads
Fire resistance
Fireproof agents
Flame retardants
Flax
Flax short fibres
Forms of application and semi-finished materials
insulating materials
lignocellulose
Melamine
Pea proteins
Phosphates
Polymer industry, paints, wood
porosity
Pyrolysis
scanning electron microscopy
Short fibres
Technology of polymers
thermal degradation
thermogravimetry
zinc
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Summary: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.
ISSN:0141-3910
1873-2321
DOI:10.1016/j.polymdegradstab.2013.02.002