Kinetics of thermal degradation of flame retardant copolyesters containing phosphorus linked pendent groups

“…Adopting in situ thermal polymerization, Yeh et al (2004) prepared a series of PS/clay composites and inferred improved anticorrosive and thermal characteristics of the nanocomposites. Poly(ethylene terephthalate)/clay composite was fabricated and its thermal oxidative degradation behaviors were precisely examined (Wu et al 2002;Zhao et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Sonication-assisted synthesis of polystyrene (PS)/organoclay nanocomposites: influence of clay content

Suresh

Kumar

et al. 2017

Appl Nanosci

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This article presents the synthesis of a series of polystyrene (PS)/organoclay nanocomposite films consisting of different contents of clay (1-7 wt%) by sonicationcoupled solvent-blending technique. The prepared PS nanocomposite films were characterized using various techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and thermal gravimetric analysis (TGA). The XRD and TEM results revealed the formation of exfoliated nanocomposites at lower loading of organoclay (\5 wt%). The presence of various functional groups in the organoclay and PS/organoclay nanocomposite was verified by FTIR spectra. The thermal stability of PS nanocomposites was significantly improved as compared to pristine PS, which is evident from TGA analysis. When 10% mass loss was chosen as a point of reference, the thermal degradation temperature of PS nanocomposite holding 7 wt% of organoclay was found to be 30°C more over pristine PS. The thermal kinetic parameters such as activation energy (E a ), pre-exponential factor (A), and the order of reaction (n) were determined by employing the Coats-Redfern model. Thermal degradation reaction mechanism of PS nanocomposites was also investigated.

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“…War et al [5][6][7][8] have also synthesized some novel phosphorus-containing fire retardants in polyester copolymers. Recently our laboratory in Chengdu has successfully synthesized a series of phosphorus-containing fire retardant polyesters copolymers including those with phosphorus linked as pendent groups and incorporated into the main chain [9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterisation of a novel fire retardant PET/α-zirconium phosphate nanocomposite

Wang

Liu

Wang

et al. 2009

Polymer Degradation and Stability

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100

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Abstract:The preparation of a novel fire retardant nanocomposite of poly (ethylene terephthalate) (PET)/α-zirconium phosphate (α-ZrP) by in situ polymerization was investigated. The novel fire retarded PET nanocomposite, PET-co-DDP/α-ZrP nanocomposite, was synthesized by the direct condensation of terephthalic acid, ethylene glycol, 9,10-dihydro-10[2,3-di(hydroxycarbonyl)propyl]-10-phosphaphenanthrene-10-oxide and nano α-ZrP. The morphology，thermal stability and burning behaviour of the nanocomposite with 1 wt-% α-ZrP loadings were 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).

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Kinetics of thermal degradation of flame retardant copolyesters containing phosphorus linked pendent groups

Cited by 83 publications

References 10 publications

Phosphorus-containing poly(trimethylene terephthalate) derived from 2-(6-oxido-6H-dibenz〈c,e〉〈1,2〉oxaphosphorin-6-yl)-1,4-hydroxyethoxy phenylene: Synthesis, thermal degradation, combustion and pyrolysis behavior

Phosphorus-containing poly(trimethylene terephthalate) derived from 2-(6-oxido-6H-dibenz〈c,e〉〈1,2〉oxaphosphorin-6-yl)-1,4-hydroxyethoxy phenylene: Synthesis, thermal degradation, combustion and pyrolysis behavior

Sonication-assisted synthesis of polystyrene (PS)/organoclay nanocomposites: influence of clay content

Preparation and characterisation of a novel fire retardant PET/α-zirconium phosphate nanocomposite

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