INVESTIGATION OF TECHNOLOGICAL PROPERTIES OF ELASTOMER COMPOSITIONS WITH FILLER COMBINATIONS

UDC 678.046

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), 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

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

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

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 Nikolaevich – PhD (Engineering), Head of the Engineering and Technical Center. JSC “Belshina” (Minskoye shosse str., 213824, Bobruisk, Republic of Belarus). E-mail: vdv90@mail.ru

Prokopovich Yaroslav Mikhaylovich – process engineer of the Research Sector of the Central Factory Laboratory of the Engineering and Technical Center. JSC “Belshina” (Minskoye shosse str., 213824, Bobruisk, Republic of Belarus). E-mail: prokopovichyam@belshina.by

DOI: https://doi.org/ 10.52065/2520-2669-2023-271-2-2 (In Russian).

Key words: rubber compound, carbon black, silica filler, Mooney viscosity, strength, heat generation, rolling resistance.

For citation: Shashok Zh. S., Uss E. P., Krotova O. A., Leshkevich A. V., Lyushtyk A. Yu., Kayushnikov S. N., Prokopovich Ya. M. Investigation of technological properties of elastomer compositions with filler combinations. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2023, no. 2 (271), pp. 13–18. DOI: 10.52065/2520-2669-2023-271-2-2 (In Russian).

Abstract

The technological properties of rubber compounds containing a combination of technical carbon and silica filler have been studied. As objects of study, elastomeric compositions based on natural rubber containing high-reinforcing carbon black grade N347 and silica filler grade Perkasil-408 were used. In the formulations, a partial replacement of 10.0 and 20.0 wt. h. of carbon black on a mineral filler with the rest of the composition of the rubber compound unchanged. It has been determined that the use of a silica filler leads to the production of elastomeric compositions with a 6.1–10.2% lower Mooney viscosity of rubber compounds. Partial replacement of highly reinforcing carbon black with mineral filler Perkasil-408 improves the dispersion of the filler in the volume of the elastomeric matrix by reducing the interaction of filler particles with each other, since the complex dynamic modulus of mixtures with silica filler is 1.16–1.69 times less than for a mixture with carbon black. It has been established that compositions with a combination of fillers are characterized by increased resistance to premature vulcanization, but a 6.7–18.7% longer time to achieve the optimal degree of vulcanization and a 1.24–1.59 times lower vulcanization rate, which affects the structure of the generated spatial grid.

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16.03.2023