α-Zr phosphate (hereafter referred to as ZrP) based composites were prepared by melt blending in order to improve the flame retardancy properties of polyamide 6 (PA6), polyethylene terephthalate (PET), polypropylene (PP) and ethylene vinyl acetate copolymer (EVA). Different morphologies are distinguishable by electron microscopy: PA6-ZrP seems to be a nanocomposite by Transmission Electron Microscopy (TEM) whereas PET-, PP- and EVA-ZrP blends appear micro-composites by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) analyses. ZrP acts as flame retardant in PA6 reducing the total heat evolved and consequently the heat release rate during the combustion measured by cone calorimetry. Moreover, ZrP reduces the flammability of PET and EVA acting in synergistic effect with phosphorous based flame retardants. Indeed, it is showed that it is possible to reduce the amount of phosphorous flame retardant adding ZrP to reach UL94 classification V0 for both polymers.
Flame retardancy properties of α-zirconium phosphate based composites / J. Alongi, A. Frache. - In: POLYMER DEGRADATION AND STABILITY. - ISSN 0141-3910. - 95:9(2010 Sep), pp. 1928-1933.
|Titolo:||Flame retardancy properties of α-zirconium phosphate based composites|
ALONGI, JENNY (Corresponding)
|Parole Chiave:||α-Zr phosphate; EVA; Flame retardancy; PA6; PET; PP; Mechanics of Materials; Materials Chemistry; Metals and Alloys; Polymers and Plastics; Condensed Matter Physics|
|Settore Scientifico Disciplinare:||Settore CHIM/04 - Chimica Industriale|
|Data di pubblicazione:||set-2010|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.polymdegradstab.2010.04.007|
|Appare nelle tipologie:||01 - Articolo su periodico|