INFLUENCE OF PLASTICIZING COMPONENTS ON TECHNICAL PROPERTIES OF ELASTOMER COMPOSITIONS BASED ON GENERAL PURPOSE RUBBERS

UDC 678.049

 

Krotova Olga Aleksandrovna – PhD (Engineering), Assistant Professor, 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, 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), Associate Professor, 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

Leshkevich Anastasiya Vladimirovna – PhD (Engineering), Senior Lecturer, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: nastyonke@mail.ru

Bogdanovich Diana Anatolievna – Master’s degree student, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: bogdanovichdiana@mail.ru

Zholnerkevich Veronika Igorevna – PhD student, the Department of Polymer Composite Materials. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: zholnerkevichv@mail.ru

 

DOI: https://doi.org/ 10.52065/2520-2669-2024-283-1.

 

Key words: elastomer composition, plasticizer, general purpose rubber, petroleum oil, raffinate, compatibility, strength, hardness, brittleness limit.

For citation: Krotova O. A., Shashok Zh. S., Uss E. P., Leshkevich A. V., Bogdanovich D. A., Zholnerkevich V. I. Influence of plasticizing components on technical properties of elastomer compositions based on general purpose rubbers. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2024, no. 2 (283), pp. 5–11 (In Russian). DOI: 10.52065/2520-2669-2024-283-1.

 

Abstract

The results of the study of petroleum oils with various degrees of purification on the technical properties of elastomeric compositions based on a combination of SKI-3 and SKD rubbers are presented As plasticizing component were used a by-product of oil production (extract of selective purification of vacuum distillate VD-4) and its purification products, which were introduced into the elastomeric compositions at a dosage of 5.0 and 10.0 phr. It was found that the introduction of the studied plasticizing additives into rubber mixtures leads to an increase of up to 30% of the conditional stress at 300% elongation and up to 7.9% of the conditional tensile strength rubber compared to compositions containing I-40 oil. It was determined that the use of raffinate obtained during the purification of the extract of vacuum distillate VD-4 with the solvent N-methylpyrrolidone with the addition of 10 wt. % of ethylene glycol, as well as raffinate, a productof extraction purification of the oxidized extract of vacuum distillate VD-4, leads to an increase in the resistance of rubber to thermal aging by up to 9%. It was revealed that the introductionof the studied petroleum oils into elastomeric compositions based on a combination of SKI-3 and SKD rubbers makes it possible to maintain the temperature limit of rubber brittleness at the level of I-40 oil used in industry.

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30.04.2024