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One-step synthesis of improved silica/epoxy nanocomposites with inorganic-organic hybrid network

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Abstract

High performance silica/epoxy nanocomposites were prepared through mixing epoxy, tetraethyl orthosilicate (TEOS), γ-aminoproplytriethyoxy siliane(APTES), and triethyltrtramine (TETA) at 25 °C via sol-gel method on one-step. The effects of content of TEOS and coupling reagents on the mechanical and thermal properties of SiO2/EP composites were studied. Microcosmic morphology and properties of the hybrid materials were characterized by FT-IR, TEM, FESEM, and DSC. Results revealed that SiO2/EP composites achieve the optimal mechanical and thermal properties when the composites prepared with mass ratio of TEOS/APTES/epoxy for 3/2/100 without acetone. Compared with pristine epoxy, the tensile strength, elongation at break, impact strength and bend strength increased 67.6 %, 190 %, 82.1 % and 15.7 %, respectively. The further study was to investigate the content of TEOS and APTES effecting on mechanical properties and water sorption of fiber reinforced composites, which used the above compound as matrix resin.

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Acknowledgments

This study was supported by graduate starting seed fund of Northwestern Polytechnical University (NO. Z2013149).

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Authors and Affiliations

  1. Department of Applied Chemistry, Northwestern Polytechnical University, Xi’an, Shannxi, People’s Republic of China, 710072

    Jian Jiao, Peng Liu, Lei Wang & Yu Cai

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  1. Jian Jiao
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  2. Peng Liu
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  3. Lei Wang
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  4. Yu Cai
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Correspondence to Jian Jiao.

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Jiao, J., Liu, P., Wang, L. et al. One-step synthesis of improved silica/epoxy nanocomposites with inorganic-organic hybrid network. J Polym Res 20, 202 (2013). https://doi.org/10.1007/s10965-013-0202-9

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  • DOI: https://doi.org/10.1007/s10965-013-0202-9

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