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2017 | 132 | 3 | 767-769
Article title

Characterization of UHWPE-TiO₂ Composites Produced by Gelation/Crystallization Method

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EN
Abstracts
EN
In this study, ultra-high molecular weight polyethylene (UHMWPE) - TiO₂ composites reinforced with TiO₂ particles with weight ratios of 0.5, 1 and 2% were produced by gelation/crystallization method in decalin+antioxidant solution of UHMWPE at 150°C, for 40 min by using magnetic stirrer. The gel mixture was cooled in an aluminum tray embedded in iced water under ambient conditions and dried in an oven at 130°C for 90 min to remove any residual trace of decalin. Distribution and elemental analyses of TiO₂ particles in polymer matrix was examined by SEM-EDS. Crystallization behavior was investigated by differential scanning calorimetry (DSC). Based on the results, TiO₂ particles in the UHMWPE have accelerated the crystallization, acting as nucleating agents, with increment from 56% for UHMWPE to 63.5% for UHMWPE-2 wt% TiO₂. The present bond types in composites were analyzed by Raman spectroscopy and the results are in good agreement with literature. Uniaxial tensile tests were performed to determine Young's modulus of UHMWPE-TiO₂ composites. It was found that Young's modulus of UHMWPE was increased from 52 MPa to 800 MPa with the addition of TiO₂ particles.
Keywords
EN
Contributors
author
  • Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, 54187 Sakarya, Turkey
  • Sakarya University, Biomedical, Magnetic and Semi Conductive Materials Research Center (BIMAS-RC), Esentepe Campus, 54187 Sakarya, Turkey
author
  • Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, 54187 Sakarya, Turkey
  • Sakarya University, Biomedical, Magnetic and Semi Conductive Materials Research Center (BIMAS-RC), Esentepe Campus, 54187 Sakarya, Turkey
author
  • Atılım University, Board of Trustees, 06836 Ankara, Turkey
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv132n3p098kz
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