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Volume 39 Issue 4
Apr.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  39(4): 512-516.
Song Qichao, Zhou Zhen, Yang Chunguanget al. Curing kinetics of epoxy resin modified with nano-particles and surface strength properties and friction coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(4): 512-516. (in Chinese)
Citation: Song Qichao, Zhou Zhen, Yang Chunguanget al. Curing kinetics of epoxy resin modified with nano-particles and surface strength properties and friction coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(4): 512-516. (in Chinese)
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Curing kinetics of epoxy resin modified with nano-particles and surface strength properties and friction coefficient

  • 1.

    School of Measurement-Control Technology and Communications Engineering, Harbin University of Science and Technology, Harbin 150040, China

  • 2. School of Electrical and Information Engineering, Heilongjiang Institute of Technology, Harbin 150050, China

  • Received Date: 28 Mar 2012
  • Publish Date: 30 Apr 2013
    Abstract
  • The surface strength and tribological properties of epoxy resin were modified with addition of alumina nano-particles and rubber nano-powders. The curing kinetics and the surface strength properties of epoxy nanocomposites were investigated by differential scanning calorimeter (DSC) and dynamic ultra-micro hardness tester, respectively. The friction coefficient of the composites was evaluated. The results reveal the same curing mechanism of nanocomposites as epoxy resin by showing the similar reaction order. The activation energy of nanocomposites with single kind of nano-particles was decreased while the one with mixed nano-particles was increased. The curing heat was decreased due to the suppressed curing degree by nanoparticles. The surface hardness and the elastic modulus were improved, as well as the creep-resistant and deformation-resistant properties. Conclusively, the surface strength properties and friction coefficient of epoxy composites were improved with addition of mixed nano-particles.

     

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