Title: Effect of boron and phosphate compounds on physical, mechanical, and fire properties of wood-polypropylene composites
Author: Ayrilmis, Nadir; Akbulut, Turgay; Dundar, Turker; White, Robert H.; Mengeloglu, Fatih; Buyuksari, Umit; Candan, Zeki; Avci, Erkan
Source: CONSTRUCTION & BUILDING MATERIALS, 33 (2012) 63-69. doi:10.1016/j.conbuildmat.2012.01.013
Description: Physical, mechanical, and fire properties of the injection-molded wood flour/polypropylene composites incorporated with different contents of boron compounds; borax/boric acid and zinc borate, and phosphate compounds; mono and diammonium phosphates were investigated. The effect of the coupling agent content, maleic anhydride-grafted polypropylene, on the properties of the composites with fireretardant was also investigated. The composites with the zinc borate had the highest dimensional stability and strength in the bending, tensile, and izod impact, followed by the monoammonium phosphate, borax/boric acid, and diammonium phosphate teatments. The treatments produced modest improvements in fire performance as indicated by reductions in the heat release rates. Best results were achieved with the phosphate treatments. The Scanning Electron Microscope–Energy Dispersive Spectroscopy elemental mapping of the samples revealed that the outer surface of the wood fibers was coated by some crystalline deposits of the fire-retardants.
Keywords: Boron compounds, Fire-retardant, Flammability, Phosphate compounds, Thermoplastics, Wood plastic composite
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Ayrilmis, Nadir; Akbulut, Turgay; Dundar, Turker; White, Robert H.; Mengeloglu, Fatih; Buyuksari, Umit; Candan, Zeki; Avci, Erkan. 2012. Effect of boron and phosphate compounds on physical, mechanical, and fire properties of wood-polypropylene composites. Construction and Building Materials 33: 63-69. doi:10.1016/j.conbuildmat.2012.01.013.
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