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Effect of thermoplastic toughening agent on phase separation and physicochemical properties of bismaleimide resin

  • Beihang University
  • Aerospace Composites Technology Center

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The modified resin system of 4, 4'-bismaleimidodiphenylmethane ((BDM)/ortho-diallyl bisphenol A(DBA)(BMI)/reactive groups-terminated polyethersulfone (rPESU) (BMI/P)was prepared by melting pre-polymerization. Typical properties (The gelation time, mechanism, phase structure and thermal stability) of the BMI/P resin were systematically investigated, and their origins were discussed. The results show that the addition of rPESU into BMI resin not only significantly improves the impact toughness and the strength, but also effectively improves the thermal stability although the glass transition temperature is reduced slightly. However the reaction rate of BMI/P resin is accelerated and the gelation time is shortened because of the presence of reactive groups. And then, the cured BMI/P resin has a more complex multi-stage phase structure. Those are the difference with the polyethersulfone (PES) without terminated by reactive groups.

Original languageEnglish
Title of host publication2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages79-84
Number of pages6
ISBN (Electronic)9781538633052
DOIs
StatePublished - 14 Sep 2017
Event8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017 - Prague, Czech Republic
Duration: 22 Jul 201725 Jul 2017

Publication series

Name2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017

Conference

Conference8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
Country/TerritoryCzech Republic
CityPrague
Period22/07/1725/07/17

Keywords

  • BMI resin
  • phase separation
  • rPESU
  • thermostability
  • toughness

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