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Study of Relationship between Morphology and Mechanical Properties of SiO2-Polyacrylate Hybrid Nanocomposite

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Abstract

The atomic force microscopic technique is utilized to study the spatial distribution of silica nanoparticles embedded in poly(tetraethylene glycol diacrylate) matrix. The cast samples of these hybrid materials show distinct mechanical property change as the weight ratio (SiO2/polyacrylate) reaches 40%. The morphological observation from spin-coated films on silicon substrates shows pronounced nanoparticle network formation correlated to the elasticity transition. The percolating particles reduce the local strain field, i.e. inhibit the deformation of the stratum, and cause the dramatic increase in the Young's modulus. Our experimental result is consistent with recent theoretical prediction [1].

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Acknowledgments

The authors would like to thank Ms. Y.T. Sun for her technical support on the AFM measurements. This work is performed under the funding supports from the Department of Industrial Technology in the Ministry of Economic Affairs, R.O.C, contract number 92-EC-17-A-08-S1-0015 and National Science Council, R.O.C, contract number 93-2112-M-030-006.

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Authors and Affiliations

  1. Institute of Materials Science and Engineering, National Taiwan University, Taipei, Taiwan

    Yi-Hsiao Kao & Wei-Fang Su

  2. Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan

    Wei-Fang Su

  3. Department of Physics, FuJen Catholic University, Taipei, Taiwan

    K.C. Lin

Authors
  1. Yi-Hsiao Kao
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  2. Wei-Fang Su
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  3. K.C. Lin
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Kao, YH., Su, WF. & Lin, K. Study of Relationship between Morphology and Mechanical Properties of SiO2-Polyacrylate Hybrid Nanocomposite. MRS Online Proceedings Library 847, 146–151 (2004). https://doi.org/10.1557/PROC-847-EE13.2

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  • DOI: https://doi.org/10.1557/PROC-847-EE13.2

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