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Preparation and characterization of epoxy/kaolinite nanocomposites

Authors

  • Xinnian Xia,

    1. Institute of Polymer Research, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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  • Xiaoliang Zeng,

    1. Institute of Polymer Research, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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  • Jia Liu,

    1. Institute of Polymer Research, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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  • Weijian Xu

    Corresponding author
    1. Institute of Polymer Research, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
    • Institute of Polymer Research, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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Abstract

Epoxy/kaolinite nanocomposites were prepared by adding the organically modified layered kaolinite to an epoxy resin [biphenyl phenol novolac epoxy resin (BPNE)] with 4,4′-diamino biphenyl sulfone (DDS) as a curing agent. The dispersion state of the kaolinite within crosslinked epoxy-resin matrix was examined by X-ray diffraction (XRD) and transmission electron micrograph (TEM). The effects of kaolinite on thermal properties were investigated and discussed by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Experimental results show that BPNE/kaolinite nanocomposites exhibit improved thermal than pure BPNE. When the kaolinite content is 5 wt %, the BPNE/kaolinite nanocomposites show the best thermal properties. These results indicate that nanocomposition is an efficient and convenient method to improve the thermal properties of BPNE. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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