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:10.3390/polym14173548

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

Polymers (Basel). 2022 Aug 29;14(17):3548. doi: 10.3390/polym14173548.

Authors

Adit Sharma¹, Dmitry Muratov², Mikhail Zadorozhnyy¹, Andrey Stepashkin¹, Andrey Bazlov¹, Artem Korol¹, Ruslan Sergiienko³, Victor Tcherdyntsev¹, Vladislav Zadorozhnyy¹

Affiliations

¹ Centre of Composite Materials, National University of Science and Technology "MISiS", LeninskyProsp 4, 119049 Moscow, Russia.
² Scientific School "Chemistry and Technology of Polymer Materials", Plekhanov Russian University of Economics, Stremyanny lane 36, 117997 Moscow, Russia.
³ Physico-Technological Institute of Metals and Alloys, National Academy of Sciences of Ukraine, 34/1 Vernadsky Ave., 03680 Kyiv, Ukraine.

Abstract

Composites based on Zr₆₅Cu_17.5Ni₁₀Al_7.5/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.

Keywords: X-ray diffraction; ball milling; composites; fourier-transform infrared spectroscopy; metallic glass; polymer; thermal properties; thermogravimetric analysis; triethoxyvinylsilane.

Abstract

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