STRUCTURE AND PROPERTIES OF ELASTOMER COMPOUNDS WITH ROSIN-CONTAINING AND NANO-SIZED ADDITIVES

UDC 678.046

 

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

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

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

Krotova Olga Aleksandrovna – 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: o.krotova@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

Klyuev Andrey Yur’yevich – DSc (Engineering), Professor, Professor, the Department of Woodworking Production. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: andrey_kluev_bstu@mail.ru DOI: 10.52065/2520-2669-2024-283-2.https://doi.org/10.52065/2519-402X-2023-264-01

DOI: https://doi.org/ 10.52065/2520-2669-2024-283-2.

 

Key words: elastomer compound, rosin-terpene-styrene-maleic adduct, nanomodifier, strength, temperature, structure.

 

For citation: Uss E. P., Prokopchuk N. R., Shashok Zh. S., Krotova O. A., Leshkevich A. V., Klyuev A. Yu. Structure and properties of elastomer compounds with rosin-containing and nano-sized additives. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2024, no. 2 (283), pp. 12–19 (In Russian). DOI: 10.52065/2520-2669-2024-283-2.

Abstract

The performance properties and structural parameters of spatial network of vulcanizates containing a new rosin substitute and nanomaterials have been studied. The study objects were elastomer compositions based on a combination of synthetic polyisoprene and polybutadiene rubbers. The work used rosin-terpene-styrene-maleic adduct, obtained by high-temperature treatment of a mixture of turpentine and styrene in a ratio of 95 : 5 with maleic anhydride with content of 46 wt. %. For comparative analysis, an industrial softener was used – pine rosin. The dosages of the experimental adduct and the comparison sample in the rubber mixture were 2.0 phr. Nanodiamond modifiers of the АШ-А and УДА СП brands produced by JSC “Sinta” were used as nano-sized components, which were introduced into rubber mixture in dosages of 0.1 and 0.2 phr. A slight decrease in the modulus of rubbers with the studied adduct and nanoadditive АШ-А brand was determined, regardless of the dosage of the latter. It has been established that the values of conditional tensile strength and elongation at break rubbers with adduct for and nanocomponents are at the level of samples with rosin or with nanoadditives. An analysis of the dynamic properties of rubber in the regime of alternating deformations and at elevated temperatures showed that the introduction of nanomodifiers АШ-А and УДА СП brands into compositions with an experimental adduct helps to increase their resistance to crack propagation during longitudinal bending by more than 2.9 times.

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29.04.2024