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Development and characterization of fire retarded glass - fiber reinforced poly(1,4 - butylene terephthalate) composites based on a novel flame retardant system / Wei Yang in Industrial & engineering chemistry research, Vol. 50 N° 21 (Novembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 11975-11981 Titre : Development and characterization of fire retarded glass - fiber reinforced poly(1,4 - butylene terephthalate) composites based on a novel flame retardant system Type de document : texte imprimé Auteurs : Wei Yang, Auteur ; Richard K. K. Yuen, Auteur ; Yuan Hu, Auteur Année de publication : 2011 Article en page(s) : pp. 11975-11981 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Flame  retardant  Composite  material  Glass  fiber  Fires Résumé : The aim of this work was to develop halogen-free glass-fiber reinforced poly( 1,4-butylene terephthalate) (GRPBT) composites with significantly improved fire retardancy performance using a novel flame retardant system. The system was composed of aluminum hypophosphite (AHP), polycarbonate (PC), and melamine cyanurate (MC). The GRPBT composite containing the system achieved a V-0 classification in UL-94 testing (the thickness of testing bar was 0.8 mm). In microscale combustion calorimeter and cone calorimeter testing, both of the two different PHRRs (peak of heat release rate) for GRPBT composites were remarkably reduced by the incorporation ofthe novel system. Thermogravimetric analysis and residue characterization revealed that the addition of PC promoted the formation of char residues leading to the reduction of mass loss rate, which resulted in the improvement of fire retardancy. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697517 [article] Development and characterization of fire retarded glass - fiber reinforced poly(1,4 - butylene terephthalate) composites based on a novel flame retardant system [texte imprimé] / Wei Yang, Auteur ; Richard K. K. Yuen, Auteur ; Yuan Hu, Auteur . - 2011 . - pp. 11975-11981. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 21 (Novembre 2011) . - pp. 11975-11981 Mots-clés : Flame  retardant  Composite  material  Glass  fiber  Fires Résumé : The aim of this work was to develop halogen-free glass-fiber reinforced poly( 1,4-butylene terephthalate) (GRPBT) composites with significantly improved fire retardancy performance using a novel flame retardant system. The system was composed of aluminum hypophosphite (AHP), polycarbonate (PC), and melamine cyanurate (MC). The GRPBT composite containing the system achieved a V-0 classification in UL-94 testing (the thickness of testing bar was 0.8 mm). In microscale combustion calorimeter and cone calorimeter testing, both of the two different PHRRs (peak of heat release rate) for GRPBT composites were remarkably reduced by the incorporation ofthe novel system. Thermogravimetric analysis and residue characterization revealed that the addition of PC promoted the formation of char residues leading to the reduction of mass loss rate, which resulted in the improvement of fire retardancy. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24697517

Enhanced properties of the incorporation of a novel reactive phosphorus- and sulfur-containing flame-retardant monomer into unsaturated polyester resin / Kang Dai in Industrial & engineering chemistry research, Vol. 51 N° 49 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15918–15926 Titre : Enhanced properties of the incorporation of a novel reactive phosphorus- and sulfur-containing flame-retardant monomer into unsaturated polyester resin Type de document : texte imprimé Auteurs : Kang Dai, Auteur ; Lei Song, Auteur ; Richard K. K. Yuen, Auteur Année de publication : 2013 Article en page(s) : pp. 15918–15926 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Reactive  phosphorus Résumé : A novel reactive phosphorus- and sulfur-containing flame-retardant monomer [di(allyloxybisphenol sulfone) phenoxy phosphonate, DASPP] was successfully synthesized and well characterized. Various amounts of DASPP were incorporated into the unsaturated polyester by radical bulk polymerization. The thermal properties and flammability of the flame-retardant unsaturated polyester resin (FR-UPR) samples were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), limiting oxygen index (LOI) measurements, and cone calorimetry. The results showed that the introduction of DASPP into unsaturated polyester resin (UPR) can substantially improve its fire resistance and high-temperature stability. Interestingly, a linear increase in the glass transition temperature (Tg) with increasing incorporated DASPP content was observed by DSC. Scanning electron microscopy (SEM) and Raman spectroscopy studies revealed that DASPP can effectively improve the microstructure of UPR char residue and increase its graphitization degree, which can enhance UPR’s thermo-oxidative stability and char yield in high-temperature regions. Furthermore, real-time Fourier transform infrared (RTIR) spectroscopy was employed to study the thermo-oxidative degradation reactions of different UPR samples, providing insight into the combustion mechanism. In addition, results from tensile testing demonstrated the improved mechanical properties for the samples containing DASPP. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302106w [article] Enhanced properties of the incorporation of a novel reactive phosphorus- and sulfur-containing flame-retardant monomer into unsaturated polyester resin [texte imprimé] / Kang Dai, Auteur ; Lei Song, Auteur ; Richard K. K. Yuen, Auteur . - 2013 . - pp. 15918–15926. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15918–15926 Mots-clés : Reactive  phosphorus Résumé : A novel reactive phosphorus- and sulfur-containing flame-retardant monomer [di(allyloxybisphenol sulfone) phenoxy phosphonate, DASPP] was successfully synthesized and well characterized. Various amounts of DASPP were incorporated into the unsaturated polyester by radical bulk polymerization. The thermal properties and flammability of the flame-retardant unsaturated polyester resin (FR-UPR) samples were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), limiting oxygen index (LOI) measurements, and cone calorimetry. The results showed that the introduction of DASPP into unsaturated polyester resin (UPR) can substantially improve its fire resistance and high-temperature stability. Interestingly, a linear increase in the glass transition temperature (Tg) with increasing incorporated DASPP content was observed by DSC. Scanning electron microscopy (SEM) and Raman spectroscopy studies revealed that DASPP can effectively improve the microstructure of UPR char residue and increase its graphitization degree, which can enhance UPR’s thermo-oxidative stability and char yield in high-temperature regions. Furthermore, real-time Fourier transform infrared (RTIR) spectroscopy was employed to study the thermo-oxidative degradation reactions of different UPR samples, providing insight into the combustion mechanism. In addition, results from tensile testing demonstrated the improved mechanical properties for the samples containing DASPP. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302106w