FEATURES OF THE DISPERSION OF SILICA FILLERS IN ELASTOMER COMPOSITIONS BASED ON SOLUTIONS STYRENE BUTADIENE RUBBERS

UDC 678.4

  • Lyushtyk Andrey Yur’yevich − Chief Chemist, Head of the Laboratory. JSC “Belshina” (Minskoye shosse str., 213824, Bobruisk, Republic of Belarus). E-mail: jb133xxxx@gmail.com

  • Kayushnikov Sergey Nikolayevich − PhD (Engineering), Head of Engineering and Technical Center. JSC “Belshina” (Minskoe shosse str., 213824, Bobruisk, Republic of Belarus). E-mail: vdv90@mail.ru

  • Shashok Zhanna Stanislavovna − DSc (Engineering), Associate Professor, Professor, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: shashok@belstu.by

  • Uss Elena Petrovna − PhD (Engineering), Assistant Professor, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: uss@belstu.by

  • Krotova Ol’ga Aleksandrovna − PhD (Engineering), Senior Lecturer, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: o.krotova@belstu.by

  • Liashkevich Anastasiya Vladimirovna − PhD (Engineering), assistant lecturer, the Department of Polymer Composite Materials. The Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nastyonke@mail.ru

DOI: https://doi.org/10.52065/2520-2669-2022-259-2-19-25

Key words: styrene-butadiene rubber, silica filler, coupling agent, dispersion, complex dynamic modulus.

For citation: Lyushtyk A. Yu., Kayushnikov S. N., Shashok Zh. S., Uss E. P., Krotova O. A., Leshkevich A. V. Features of the dispersion of silica fillers in elastomer compositions based on solutions styrene butadiene rubbers. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2022, no. 2 (259), pp. 19–25 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2022-259-2-19-25.

Abstract

The features of the dispersion of silica fillers, which differ in the size of the specific adsorption surface area, in the volume of elastomer compositions based on solution styrene-butadiene rubbers (DSBR) are determined. Elastomeric compositions based on rubber grades DSSK 2163 and DSSK 2560M27 were used as objects of study. X 50-S silane was used as a coupling agent. It has been established that the nature of the elastomer has a significant effect on the process of hydrophobization of the filler surface. In mixtures based on oil-filled styrene-butadiene rubber DSSK 2560M27 with 60.0 wt. hours of silica filler, in comparison with compositions based on DSSK 2163, the indicators of the complex dynamic modulus are 17.1–29.0% higher in the case of the Zeosil-1165MP filler and by 56.1–66.0% in the case of the filler brand Zeosil Premium 200MP. Similar dependencies were determined for compositions with 65.0 wt. hours of silica filler (the complex dynamic modulus is greater by 62.5–68.9% for mixtures with Zeosil-1165MP and by 74.3–84.9% for mixtures with Zeosil Premium 200MP). The revealed nature of the change in the process of dispersion of the filler in the elastomer may be due to the difficulty in the process of hydrophobization of the silica surface due to the presence of filler oil in the volume of rubber.

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08.04.2022