PROPERTIES OF ELASTOMERIC COMPOSITIONS BASED ON BNKS-18 WITH CARBON NANOSTRUCTURAL MATERIALS AND REINFORCING TECHNICAL CARBON

UDC 678.046

  • Shashok Zhanna Stanislavovna – 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: shashok@belstu.by

DOI: https://doi.org/10.52065/2520-2669-2021-247-2-39-47

Key words: elastomeric composition, rubber, carbon nanostructured material, elastic-strength property, resistance to heat aging, cross-linking density.

For citation: Shashok Zh. S. Properties of elastomeric compositions based on BNKS-18 with carbon nanostructural materials and reinforcing technical carbon. Proceedings of BSTU, issue 2, Chemical Engineering, Biotechnologies, Geoecology, 2021, no. 2 (247), pp. 39−47 (In Russian). DOI: https://doi.org/10.52065/2520-2669-2021-247-2-39-47.

Abstract

The effect of three nanostructured carbon materials, nonfunctionalized and functionalized with amino and oxygen-containing groups, on the elastic-strength properties and resistance of rubbers based on BNKS-18 with highly active carbon black to thermal aging has been studied. The structure of vulcanizates before and after heat aging was investigated by the method of equilibrium swelling. Compositions based on polar rubber of special purpose BNKS-18 filled with reinforcing carbon black of the N134 grade in the amount of 25.0 and 50.0 phr were used as objects of research. It was found that the introduction of carbon nanomaterials into elastomeric compositions based on BNKS-18 with a highly active grade of carbon black N134 leads to change in the strength of rubbers by 4.8–12.0% at practically equivalent values of elongation at break compared to rubber without nanoadditives. It was determined that the use of 0.1 and 0.2 phr including nanomaterials contributes to an increase in the resistance of rubbers to heat aging, while the non-functionalized nanomaterial CNM1 makes it possible to obtain rubbers that retain their strength best, and CNM2 and CNM3 elastic properties of rubbers during thermal aging. The density of cross-linking of rubbers with nanomaterials, when exposed to elevated temperature and atmospheric oxygen, increases to a greater extent (1.47–1.49 times) than for rubber without nanomaterials (1.33 times).

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References

  1. Badamshina E. R., Gafurova M. P., Estrin Ya. I. Modification of carbon nanotubes and synthesis of polymer composites with their participation. Uspekhi khimii [Advances in chemistry], 2009, vol. 79, no. 11, pp. 1027–1064 (In Russian).
  2. Cátia S. C. Santos, Barbara Gabriel, Marilys Blanchy, Olivia Menes, Denise García, Miren Blanco, Noemí Arconada, Victor Neto. Industrial applications of nanoparticles – A Prospective overview. Materialstoday: Proceedings, 2015, vol. 2, issue 1, pp. 456–465.
  3. Kharissova O. V., Kharisov B. I. Solubilization and dispersion of carbon nanotubes. Berlin, Springer, 2017. 250 р.
  4. Khabashesku V. N., Pulikkathara M. X. Chemical modification of carbon nanotubes. Mendeleev Communications. 2006, vol. 16, no. 2, pp. 61–66.
  5. Imtiaza S., Siddiq M., Kausar A., Muntha S. T., Ambreen J., Bibi I. A review featuring fabrication, properties and applications of carbon nanotubes (CNTs) reinforced polymer and epoxy nanocomposites. Chinese J. Polymer Science, 2018, vol. 36, no. 4, pp. 445−461.
  6. Atieh M. A. Effect of functionalized carbon nanotubes with carboxylic functional group on the mechanical and thermal properties of styrene butadiene rubber. Fullerenes, Nanotubes and Carbon Nanostructures, 2011, vol. 19, no. 7, pp. 617–627.
  7. Nakaramontri Y., Kummerlöwe C., Nakason C., Vennemann N. The effect of surface functionalization of carbon nanotubes on properties of natural rubber/carbon nanotube composites. Polymer Composites, 2014, vol. 36, issue 11, pp. 2113–2122.
  8. Zhovner N. A., Chirkova N. V., Khlebov G. A. Struktura i svoystva materialov na osnove elastomerov [Structure and properties of materials based on elastomers]. Omsk, RosZITLP Publ., 2003. 276 p.
  9. Grishin B. S. Teoriya i praktika usileniya elastomerov. Sostoyanye i napravleniya razvitiya [Theory and practice of elastomer strengthening. Status and directions of development]. Kazan, KNITU Publ., 2016. 420 p.
  10. Bol’shoy spravochnik rezinshchika. V 2 chastyakh. Ch. 1: Reziny i rezinotekhnicheskiye izdeliya [Big reference book of a rubber production worker]. Moscow, Tekhinform Publ., 2012. 744 p.
  11. Kornev A. E., Bukanov A. M., Sheverdyayev O. N. Tekhnologiya elastomernykh materialov [Elastomeric material technology]. Moscow, Istek Publ., 2009. 502 p.
  12. GOST 270–75. Rubber. Method for determining elastic tensile properties. Moscow, Izdatel’stvo standartov Publ., 1975. 29 p. (In Russian).
  13. GOST 9.024–74. Rubber. Test methods for resistance to thermal aging. Moscow, Izdatel’stvo standartov Publ., 1974. 12 p. (In Russian).
  14. Averko-Antonovich I. Yu., Bikmullin R. T. Metody issledovaniya struktury i svoystv polimerov [Methods of research of structure and properties]. Kazan, KSTU Publ., 2002. 604 p.
  15. Boonbumrung A., Saeou P., Sirisinha C. Reinforcement of multiwalled carbon nanotube in nitrile rubber: in comparison with carbon black, conductive carbon black, and precipitated silica. J. of Nanomaterials, 2016, pp. 1–8. DOI: 10.1155/2016/6391572.
  16. Galimberti M., Infortuna G., Barbera V., Guerra S., Bernardi A., Agnelli S. Mechanical reinforcement of rubber by sp2 carbon allotropes such as carbon black and carbon nanotubes: The role of interfacial area and filler orientation. Rubber World, 2018, vol. 257, no. 5, pp. 24–29.
  17. Valentini L., Bon S. B., Hernández M. Nitrile butadiene rubber composites reinforced with reduced graphene oxide and carbon nanotubes show superior mechanical, electrical and icephobic properties. Composites Science and Technology, 2018, vol. 166, pp. 109–114.
12.04.2021