Science and Engineering of Composite Materials (Dec 2012)

Effect of functional nitrile groups on curing behaviors and thermal properties of epoxy resins as advanced matrix materials

  • Guo Heng,
  • Zhang Jiandong,
  • Chen Zhiran,
  • Wei Junji,
  • Zhao Rui,
  • Liu Xiaobo

DOI
https://doi.org/10.1515/secm-2012-0021
Journal volume & issue
Vol. 19, no. 4
pp. 347 – 350

Abstract

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This paper reports the preparation of the amine/epoxy blends with various amines such as 4,4′-diaminodiphenylsulfone (DDS), one nitrile side chain-containing diamine (BDB), and phthalonitrile-containing amine (APN). Differential scanning calorimetry (DSC), rheological analysis, and thermal gravimetric analysis (TGA) were used to evaluate the curing behaviors and thermal properties of amine/epoxy blends with the effect of functional nitrile groups of amines. Interestingly, an amine/epoxy blend exhibited double curing reactions. The cured epoxy copolymers exhibited high glass transition temperatures (>220°C) and excellent thermal stabilities having 5% weight loss temperature in the range of 375°C to 383°C.

Keywords