Journal
POLYMER DEGRADATION AND STABILITY
Volume 94, Issue 4, Pages 544-549Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymdegradstab.2009.01.018
Keywords
Fire retardant; Flame retarded; Poly(ethylene terephthalate); PET; In situ polymerisation; Nanocomposite
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Funding
- National Science Foundation of China [20674053]
- National Science Fund for Distinguished Young Scholars [50525309]
- China Postdoctoral Science Foundation
- International Foundation for Science [IFS, F/4285-1]
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The preparation of a novel fire retardant nanocomposite of poly(ethylene terephthalate) (PET) using nanoscopic alpha-zirconium phosphate (alpha-ZrP), by in situ polymerisation was investigated. The novel fire retarded PET nanocomposite, PET-co-DDP/alpha-ZrP, was synthesized by the direct condensation of terephthalic acid, ethylene glycol, 9,10-dihydro-10[2,3-di(hydroxycarbonyl)propyl]-10-phosphaphenanthrene-10-oxide (DDP) and nano alpha-ZrR The morphology, thermal stability and burning behaviour of the nanocomposite with 1 wt% alpha-ZrP loading was investigated. The extent of dispersion of the nanofillers was quantified by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Significant improvements in fire retardant performance were observed for the nanocomposite from limiting oxygen index (increased from 21.2 to 32.6), UL-94 (achieving V-0), and cone calorimetry (reducing both the heat release rate and the total heat released, without reducing the time to ignition). (c) 2009 Elsevier Ltd. All rights reserved.
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