USE OF CARBON-SILICON FILLER IN ELASTOMER COMPOSITIONS BASED ON A COMBINATION OF RUBBERS

UDC 678.046.3

  • Bobrova Valeriya Vladimirovna – PhD student, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: lerik_bobrik94@mail.ru

  • Prokopchuk Nikolay Romanovich – Corresponding Member of the National Academy of Sciences of Belarus, DSc (Chemistry), Professor, Professor, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nrprok@gmail.com

  • Efremov Sergey Anatol’yevich – Academician of Kazakhstan National Academy of Natural Sciences, DSc (Chemistry), Professor, Deputy Director of the Center for Physico-Chemical Methods of Research and Analysis. Al-Farabi Kazakh National University (71, Al-Farabi Ave., 050040, Almaty, Republic of Kazakhstan). E-mail: efremsa@mail.ru

  • Nechipurenko Sergey Vital’yevich – PhD (Engineering), Associate Professor, Leading Researcher, Head of the Laboratory of Composite Materials of the Center for Physico-Chemical Methods of Research and Analysis. Al-Farabi Kazakh National University (71, Al-Farabi Ave., 050040, Almaty, Republic of Kazakhstan). E-mail: nechipurenkos@mail.ru

DOI: https://doi.org/10.52065/2520-2669-2023-265-1-11

Keywords: carbon-silicon filler, polyisoprene rubber, polybutadiene rubber, technological properties, performance, ozone aging, thermal aging.

For citation: Bobrova V. V., Prokopchuk N. R., Efremov S. A., Nechipurenko S. V. Use of carbonsilicon filler in elastomer compositions based on a combination of rubbers. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2023, no. 1 (265), pp. 95–103. DOI: https://doi.org/10.52065/2520-2669-2023-265-1-11 (In Russian).

Abstract

The main purpose of this work was to establish the effect of partial or complete replacement of industrial low-reinforcing carbon black grade N772 with carbon-silicon filler (CCF) of plant origin on the main technological and operational characteristics of industrial elastomer compositions intended for the manufacture of vibration isolators. The objects of study were elastomeric compositions based on a combination of synthetic polyisoprene and polybutadiene rubbers containing carbon black and CCF in various proportions. A study of the Mooney viscosity of rubber compounds showed that replacing N772 with CCF reduces this indicator by 8.2–41.7%. Determination of the kinetic parameters of the process of vulcanization of rubber compounds revealed that with the introduction of CCF, there is a slight increase in the time to reach the optimum vulcanization and resistance of rubber compounds to premature vulcanization compared to the composition containing N772. Determination of the main performance characteristics of the studied elastomer compositions showed that the replacement of low-reinforcing carbon black with CCF makes it possible to obtain vulcanizates with the required technical characteristics for vibration insulators in terms of conditional tensile strength, relative elongation at break, tear resistance, Shore A hardness, relative residual compression strain, resistance to ozone aging.

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