The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform

Yunyun Yang - One of the best experts on this subject based on the ideXlab platform.

  • Gas–Condensed Phase flame-retardant mechanisms of tris(3-nitrophenyl) phosphine/triphenyl phosphate/ABS
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Hang Luo, Xilei Cao, Yunyun Yang, Feng Zhou, Xufu Cai
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

  • gas Condensed Phase flame retardant mechanisms of tris 3 nitrophenyl phosphine triphenyl phosphate abs
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Feng Zhou, Yunyun Yang
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

Feng Zhou - One of the best experts on this subject based on the ideXlab platform.

  • Gas–Condensed Phase flame-retardant mechanisms of tris(3-nitrophenyl) phosphine/triphenyl phosphate/ABS
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Hang Luo, Xilei Cao, Yunyun Yang, Feng Zhou, Xufu Cai
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

  • gas Condensed Phase flame retardant mechanisms of tris 3 nitrophenyl phosphine triphenyl phosphate abs
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Feng Zhou, Yunyun Yang
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

Xufu Cai - One of the best experts on this subject based on the ideXlab platform.

  • Gas–Condensed Phase flame-retardant mechanisms of tris(3-nitrophenyl) phosphine/triphenyl phosphate/ABS
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Hang Luo, Xilei Cao, Yunyun Yang, Feng Zhou, Xufu Cai
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

Hang Luo - One of the best experts on this subject based on the ideXlab platform.

  • Gas–Condensed Phase flame-retardant mechanisms of tris(3-nitrophenyl) phosphine/triphenyl phosphate/ABS
    Journal of Thermal Analysis and Calorimetry, 2018
    Co-Authors: Hang Luo, Xilei Cao, Yunyun Yang, Feng Zhou, Xufu Cai
    Abstract:

    Tris(3-nitrophenyl) phosphine (NPPh3), a flame retardant containing phosphorus and nitro group, is synthesized. And a novel flame retardant loading with NPPh3 and triphenyl phosphate (TPP) is prepared to flame-retardant acrylonitrile–butadiene–styrene (ABS). The effects of NPPh3 and TPP on the flammability of ABS are studied by various methods. The flame retardation of ABS/NPPh3/TPP composite is characterized by limiting oxygen index method and vertical and horizontal burning tests (UL-94). Compared with the systems with ABS/NPPh3 and ABS/TPP alone, ABS/NPPh3/TPP obtains a higher limiting oxygen index. Additionally, the flame-retardant effect of ABS/NPPh3/TPP in Condensed Phase is studied by thermogravimetric analysis (TG), scanning electron microscopy, and Fourier transform infrared spectroscopy (FTIR). The gases evolved during thermal degradation process in nitrogen are studied by means of thermogravimetry coupled with Fourier transform infrared spectroscopy (TG-FTIR). The results show that ABS/NPPh3/TPP exerts gas-Condensed Phase flame-retardant effect.

Richard A Mathies - One of the best experts on this subject based on the ideXlab platform.

  • femtosecond stimulated raman exposes the role of vibrational coherence in Condensed Phase photoreactivity
    Accounts of Chemical Research, 2016
    Co-Authors: David P Hoffman, Richard A Mathies
    Abstract:

    ConspectusFemtosecond spectroscopy has revealed coherent wave packet motion time and time again, but the question as to whether these coherences are necessary for reactivity or merely a consequence of the experiment has remained open. For diatomic systems in the gas Phase, such as sodium iodide, the dimensionality of the system requires coordinated atomic motion along the reaction coordinate. Coherent dynamics are also readily observed in Condensed-Phase multidimensional systems such as chromophores in proteins and solvated charge transfer dimers. Is precisely choreographed nuclear motion (i.e., coherence) required for reactivity in these systems? Can this coherence reveal anything about the reaction coordinate?In this Account, we describe our efforts to tackle these questions using femtosecond stimulated Raman spectroscopy (FSRS). Results of four exemplary systems are summarized to illustrate the role coherence can play in Condensed-Phase reactivity, the exploitation of vibrational coherence to measure v...