INFLUENCE OF PLASTICIZER ADDITIVES ON THE PROPERTIES OF ELASTOMER COMPOSITIONS

UDC 678.049

  • 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

  • Shashok Zhanna Stanislavovna − DSc (Engineering), 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

  • Grushova Evgeniya Ivanovna − DSc (Engineering), Professor, the Department of Oil and Gas Processing and Petroleum Chemistry. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: grushova.e@mail.ru

  • Bogdanovich Diana − Student. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: bogdanovichdiana@mail.ru

  • Zholnerkevich Veronika Igorevna − Student. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: zholnerkevichv@mail.ru

DOI: https://doi.org/10.52065/2520-2669-2022-259-2-143-149

Key words: elastomer composition, plasticizer, petroleum oil, raffinate, strength, hardness, wear resistance.

For citation: Krotova O. A., Shashok Zh. S., Uss E. P., Grushova E. I., Bogdanovich D. A., Zholnerkevich V. I. Influence of plasticizer additives on the properties of elastomer compositions. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2022, no. 2 (259), pp. 143–149 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2022-259-2-143-149.

Abstract

The influence of the extract of selective purification of vacuum distillate VD-4 and its raffinates used as plasticizers on the technological and technical properties of elastomer compositions based on general-purpose rubbers has been studied. The studied additives were obtained during the treatment of extracts that are the product of selective purification of VD-4 vacuum distillate with triethylene glycol, dimethyl sulfoxide, and a solvent of the composition N-methylpyrrolidone + 10 wt. % ethylene glycol. Plasticizing additives were introduced into elastomeric compositions based on combination of SКI-3 and SKD in dosages of 2.5 and 5.0 phr. It has been established that the purification of VD-4 vacuum distillate leads to improvement in the compatibility of plasticizing additives with elastomer matrix, as indicated by higher values of the diffusion coefficient. It was revealed that the introduction of raffinates leads to increase in the Mooney viscosity of rubber compounds, in comparison with the compositions containing VD-4, and contributes to increase in the rate of relaxation processes in the bulk of the polymer matrix. It was shown that vulcanisates containing refined oils have a higher value of stress at a given elongation and tensile strength. It has been established that rubbers with purified products are characterized by increased resistance to abrasion compared to compositions containing VD-4.

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