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The Thermo-Mechanical and Dielectric Properties of Superhydrophobic Pbz/TiO 2 Composites

Author

Listed:
  • Shakila Parveen Asrafali

    (School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
    These authors contributed equally to this work.)

  • Thirukumaran Periyasamy

    (School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea
    These authors contributed equally to this work.)

  • Chaitany Jayprakash Raorane

    (School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea)

  • Vinit Raj

    (School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea)

  • Seong Cheol Kim

    (School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea)

Abstract

Polymer composites display the synergistic property of the polymer (matrix) and inorganic particles (filler material), when their combination is properly utilized. In the present work, polymer composites possessing a superhydrophobic property are fabricated by imposing the combination of both surface free energy and surface roughness. Polybenzoxazine (Pbz) is a choice of low surface free energy material and TiO 2 particles contribute to create surface roughness. Thus, Pbz/TiO 2 composites were fabricated by varying TiO 2 contents to produce superhydrophobicity. The hydrophobicity increased from 94° for Pbz to 140° for Pbz/T5. The advantage of molecular design flexibility is also utilized to synthesize benzoxazine monomer (Bzo), which then undergoes thermally induced self-polymerization with different contents of TiO 2 to produce Pbz-TiO 2 composites. The structure analysis and curing behavior of the Bzo monomer was examined using FT-IR, NMR and DSC techniques. Whereas the properties of the Pbz/TiO 2 composites were analyzed by WCA, SEM, DMA, TGA, and dielectric techniques.

Suggested Citation

  • Shakila Parveen Asrafali & Thirukumaran Periyasamy & Chaitany Jayprakash Raorane & Vinit Raj & Seong Cheol Kim, 2022. "The Thermo-Mechanical and Dielectric Properties of Superhydrophobic Pbz/TiO 2 Composites," Sustainability, MDPI, vol. 14(20), pages 1-12, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:20:p:13401-:d:945353
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