Polymers (Aug 2022)

Investigation of Thermal Properties of Zr-Based Metallic Glass–Polymer Composite with the Addition of Silane

  • Adit Sharma,
  • Dmitry Muratov,
  • Mikhail Zadorozhnyy,
  • Andrey Stepashkin,
  • Andrey Bazlov,
  • Artem Korol,
  • Ruslan Sergiienko,
  • Victor Tcherdyntsev,
  • Vladislav Zadorozhnyy

DOI
https://doi.org/10.3390/polym14173548
Journal volume & issue
Vol. 14, no. 17
p. 3548

Abstract

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Composites based on Zr65Cu17.5Ni10Al7.5/PTFE (polytetrafluoroethylene) with silane were prepared by ball milling with subsequent thermal pressing. Silanization was performed in the alcoholic solution with metallic glass powder. Different composites, 30/70 and 50/50 with silane, were prepared. During ball milling, Zr2Cu and Zr2Ni intermetallic phases were formed. The Zr-based metallic glass had a large supercooled region, and the melting point of the 30/70 and 50/50 composites with silane was near to the melting point of PTFE. The 50/50 composite (silane) had the highest thermal conductivity compared to the 30/70 composite samples. The incorporation of silane in metallic glass/polymer was investigated by Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) analysis. Thermogravimetric analysis (TGA) showed the thermal stability of the composite samples up to 450–460 °C. It was also concluded that the 50/50 composite with silane has better thermal stability than the 30/70 composite with silane. The addition of silane in 30/70 and 50/50 composites increased the thermal conductivity compared to the composites without silane.

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