Identification of flame retarding organic alkali metal salt additives in polycarbonate by flow injection electrospray ion trap mass spectrometry

Wold, Christian; Grampel, Robert van de

doi:10.1016/j.polymertesting.2009.03.012

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Recently, halogen‐free flame retardant technologies of bisphenol A polycarbonate (PC) have been extensively developed together with environmental considerations 1. It has been a common practice to incorporate sulfonate salts such as potassium diphenylsulfone sulfonate (KSS), potassium perfluorobutane sulfonate, and sodium 2,4,5‐trichlor benzene sulfonate into PC to modify the flame retardance 2, 3. Commercially available KSS induces 3.2‐mm thick specimens of PC to pass UL 94 V‐0 rating even at as low as 0.1 wt % loading 4.…”

Section: Introductionmentioning

confidence: 99%

Synergistic flame retardant effect of poly(ether sulfones) and polysiloxane on polycarbonate

Liu¹,

Yang²,

Jiang³

et al. 2011

J of Applied Polymer Sci

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Flame retardance of bisphenol A polycarbonate (PC) was improved by the co-addition of poly (ether sulfones) (PES) and polysiloxane/acrylate copolymer (PSiA) while retaining a high rigidity and toughness. A UL 94 V-0 rating for 1.6-mm thick samples of PC/PES/ PSiA blend with 10.0 wt % PES and 0.5 wt % PSiA (PC/ 10PES/0.5PSiA) was obtained. Its average heat release rate (av-HRR) in a cone calorimeter measurement was decreased by 19% on the basis of PC/PES blend with 10.0 wt % PES. Scanning electron microscopy (SEM) morphologies of impact-fractured surfaces revealed that the incorporation of 0.5 wt % PSiA decreased the dimensions of PES dispersed phase and provoked the uniform distribu-tion of PES in PC matrix. Thermogravimetric-Fourier transform infrared spectroscopy analysis results revealed that PSiA dominantly promoted the degradation of PC and the degraded products were combined with PES to form a superior flame-retarded carbon layer. A higher sulfur and silicon content on the residue surface after vertical burning tests detected by SEM/energy dispersive spectrometer signified their accumulation during combustion.

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Section: Introductionmentioning

confidence: 99%

Synergistic flame retardant effect of poly(ether sulfones) and polysiloxane on polycarbonate

Liu¹,

Yang²,

Jiang³

et al. 2011

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4] In particular, fillers, such as inorganic nanoparticles, 5 organic materials, 6 and nanofibrous materials (nanofibers and nanotubes), 7 have been used in conjunction with PC matrices. [1][2][3][4] In particular, fillers, such as inorganic nanoparticles, 5 organic materials, 6 and nanofibrous materials (nanofibers and nanotubes), 7 have been used in conjunction with PC matrices.…”

Section: Introductionmentioning

confidence: 99%

Thermal conductivity and stability of a three‐phase blend of carbon nanotubes, conductive polymer, and silver nanoparticles incorporated into polycarbonate nanocomposites

Patole

Ventura

Lubineau

2015

J of Applied Polymer Sci

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Metallic and non-metallic nanofillers can be used together in the design of polycarbonate (PC) nanocomposites with improved electrical properties. Here, the preparation of three-phase blend (carbon nanotubes (CNT), silver nanoparticles, and conductive polymer) in a two-step process before incorporation in the PC is reported. First, ethylene diamine functionalized multiwall carbon nanotubes (MWCNT-EDA) were decorated with Ag nanoparticles. Next, the Ag-decorated CNTs were coated with poly(3,4ethylenedioxythiophene) polystyrene sulfonate (PEDOT : PSS). Due to the high thermal conductivity instrinsic to both metallic and non-metallic phases, it is expected that the thermal properties of the resulting nanocomposite would largely differ from those of pristine PC. We thus investigated in detail how this hybrid conductive blend affected properties such as the glass transition temperature, the thermal stability, and the thermal conductivity of the nanocomposite. It was found that this strategy results in improved thermal conductivity and thermal stability of the material.

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Effects of higher-order multipoles on the performance of a two-plate quadrupole ion trap mass analyzer

Zhang

Quist

Peng

et al. 2011

International Journal of Mass Spectrometry

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Identification of flame retarding organic alkali metal salt additives in polycarbonate by flow injection electrospray ion trap mass spectrometry

Cited by 5 publications

References 9 publications

Synergistic flame retardant effect of poly(ether sulfones) and polysiloxane on polycarbonate

Synergistic flame retardant effect of poly(ether sulfones) and polysiloxane on polycarbonate

Thermal conductivity and stability of a three‐phase blend of carbon nanotubes, conductive polymer, and silver nanoparticles incorporated into polycarbonate nanocomposites

Effects of higher-order multipoles on the performance of a two-plate quadrupole ion trap mass analyzer

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