Dielectric response of epoxy–amine compositions during isothermal curing
作者: D. L. RodinS. Yu. StefanovichM. Yu. Yablokova
作者单位: 1Moscow State University
刊名: Russian Journal of Physical Chemistry A, 2017, Vol.91 (4), pp.780-784
来源数据库: Springer Journal
DOI: 10.1134/S0036024417040239
关键词: Dielectric spectrumCuringGel transitionGlass transitionEpoxy resinPhase separation
英文摘要: The change in electric conductivity and dielectric permittivity during the curing of epoxy–amine compositions in a mixture with the thermoplastic Ultem 1000 polyetherimide at 180°C is studied by means of dielectric spectroscopy. TGDDM epoxy resin and DADPS, MDEA, and MIPA amine curing agents are used as the epoxy–amine composition. The times of the gel and glass transition are determined from the time and frequency dependences of the dielectric response of the investigated mixtures. At a certain step of curing of epoxy–amine compositions, the separation of a new phase enriched with the thermoplastic is detected. This separation is accompanied by charge accumulation along the phase boundary and its interaction with the external electric field. In the dielectric spectrum, this effect of...
原始语种摘要: The change in electric conductivity and dielectric permittivity during the curing of epoxy–amine compositions in a mixture with the thermoplastic Ultem 1000 polyetherimide at 180°C is studied by means of dielectric spectroscopy. TGDDM epoxy resin and DADPS, MDEA, and MIPA amine curing agents are used as the epoxy–amine composition. The times of the gel and glass transition are determined from the time and frequency dependences of the dielectric response of the investigated mixtures. At a certain step of curing of epoxy–amine compositions, the separation of a new phase enriched with the thermoplastic is detected. This separation is accompanied by charge accumulation along the phase boundary and its interaction with the external electric field. In the dielectric spectrum, this effect of...
全文获取路径: Springer  (合作)
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来源刊物:
影响因子:0.386 (2012)

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关键词翻译
关键词翻译
  • epoxy 环氧尸
  • curing 硫化
  • amine 
  • transition 转移
  • dielectric 电介质
  • thermoplastic 热塑性塑料
  • separation 分选
  • resin 
  • viscometry 粘度测定法
  • isothermal 等温的