Journal of Materials Science

, Volume 42, Issue 16, pp 6708–6715 | Cite as

Preparation and characterization of epoxy nanocomposites by using PEO-grafted silica particles as modifier

  • Shao-Rong LuEmail author
  • Chun Wei
  • Jin-Hong Yu
  • Xiao-Wang Yang
  • Yu-Mei Jiang


EP/SiO2 nanocomposites, which contained PEO flexible chain, have been prepared via epoxy resin and PEO-grafted silica particles. The PEO-silica particles were obtained by endcapping PEO-1000 with toluene 2,4-diisocyanate (TDI), followed by a reaction with silica sols. The chemical structure of the products was confirmed by IR measurements, and the mechanical properties of composites such as impact strength, flexural strength, dynamic mechanical thermal properties were investigated. The results showed that the addition of the PEO-grafted silica particles to the epoxy/DDS curing system, the impact strength is 2 times higher than that of the neat epoxy. While the storage modulus and the glass transition temperature are a little changed. The morphological structure of impact fracture surface and the surface of the hybrid materials were observed by scanning electron microscope (SEM) and atomic force microscopy (AFM), respectively.


Flexural Strength Impact Strength Hybrid Material Epoxy Matrix Pure Epoxy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Financial supports from the Natural Science Foundation of China (No.50473060), Financial supports from the Natural Science Foundation of Guangxi province (No.0447053) Financial supports from the Department of Education of Gunangxi Province ([2004] 20) are gratefully acknowledged.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Shao-Rong Lu
    • 1
    Email author
  • Chun Wei
    • 1
  • Jin-Hong Yu
    • 1
  • Xiao-Wang Yang
    • 1
  • Yu-Mei Jiang
    • 1
  1. 1.Key Laboratory of New Processing Technology for Nonferrous Metal MaterialsMinistry of EducationGuilinP.R. China

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