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Preparation and characterization of EP/SiO2 hybrid materials containing PEG flexible chain

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Abstract

EP/SiO2 hybrid materials, which contained flexible chain, were prepared by epoxy resin (EP) and polyethylene glycol (PEG)-grafted polysilicic acid (PSA), which was obtained by endcapping polyethylene glycol-1000 with toluene 2,4-diisocyanate (TDI), followed by a reaction with polysilicic acid. The formation of hybrid materials was confirmed by a wide-angle X-ray diffraction (WAXD) and atomic force microscopy (AFM) analysis. Results showed that the EP/SiO2 hybrid particles were nanosized and the average size was about 20–50 nm. The mechanical properties, dynamic mechanical properties, and thermal properties were evaluated and compared with the corresponding matrix. The improvement in impact properties in hybrid materials was explained in terms of the impact fracture surface analysis by scanning electron microscope (SEM).

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Acknowledgements

The authors are grateful for the financial support by the National Natural Science Foundation of China (No. 50763001), the Natural Science Foundation of Guangxi Province, China (No. 0991003Z), the Scientific Research and Technology Development Plan of Guangxi Province of China (No. 0842003-4A), and the Funding Scheme Talents of Guangxi Province, China (No. 0817).

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Authors and Affiliations

  1. Key Laboratory of Nonferrous Metal Materials and New Processing Technology of Ministry of Education, Guilin, 541004, People’s Republic of China

    Shao-rong Lu, Yu-mei Jiang & Chun Wei

  2. Department of Material and Chemical Engineering, Guilin University of Technology, Guilin, 541004, People’s Republic of China

    Shao-rong Lu

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  1. Shao-rong Lu
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  2. Yu-mei Jiang
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  3. Chun Wei
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Correspondence to Shao-rong Lu.

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Lu, Sr., Jiang, Ym. & Wei, C. Preparation and characterization of EP/SiO2 hybrid materials containing PEG flexible chain. J Mater Sci 44, 4047–4055 (2009). https://doi.org/10.1007/s10853-009-3584-7

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  • DOI: https://doi.org/10.1007/s10853-009-3584-7

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