Influence of rare-earth element chelates on properties of thermoregulating coatings

Kondrashov E.K.
UDC
629.7.023.222
DOI
10.18577/2307-6046-2025-0-11-102-111
Article PDF (Russian) (624.94 KB)
How to cite
Kondrashov E.K. Influence of rare-earth element chelates on properties of thermoregulating coatings // Proceedings of VIAM. 2025. No. 11. DOI: 10.18577/2307-6046-2025-0-11-102-111. URL: https://test.viam.ru/en/journal/2025/11/9
Keywords
polymethylhydridesiloxanes, zinc oxide, thermal control coatings, heat-resistant enamel, rare-earth elements, condensable volatile substances
Abstract

This paper presents the results of experimental studies of thermal control paint coatings based on polymethylhydridesiloxanes. The influence of various modifying additives on the properties of the obtained coatings is demonstrated. It was determined that the introduction of rare-earth element chelates has a positive effect on the properties of the obtained coatings, namely: it minimizes the mass loss at 200 °C, increases the degree of curing of coatings and reduces the content of condensable volatile substances.

Reference list
  1. Gurevich M.M., Itsko E.F., Seredenko M.M. Optical Properties of Paint and Varnish Coatings. Leningrad: Khimiya, 1984, 120 p.
  2. State Standard R 59323–2021. Space Systems. Thermal Control Coatings for Spacecraft. General Requirements. Moscow: Standartinform, 2021, 28 p.
  3. Kablov E.N. Materials for Aerospace Technology. Vse materialy. Entsiklopedicheskiy spravochnik, 2007, no. 5, pp. 7–27.
  4. Kondrashov E.K. Paints and Varnishes and Coatings Based on Them in Mechanical Engineering. Moscow: Paint-Media, 2021, pp. 199–215.
  5. Kondrashov E.K., Vereninova N.P. Solar Reflector Thermal-Regulating Paints and Varnishes. Vse materialy. Entsiklopedicheskiy spravochnik, 2020, no. 2, p. 24.
  6. Okhotin A.S. Space Materials Science and Technology. Moscow: Nauka, 1977, pp. 120–122.
  7. Kondrashov E.K. Thermoregulating Inorganic and Polymer Coatings for the Buran ISS. Vse materialy. Entsiklopedicheskiy spravochnik, 2022, no. 8. pp. 33–38.
  8. Armor for Buran. VIAM Materials and Technologies for the Energia-Buran ISS. Ed. E.N. Kablov. Moscow: Nauka i Zhizn, 2013, 128 p.
  9. Patraev V.E., Maksimov Yu.V. Methods for Ensuring the Reliability of Onboard Equipment of Long-Duration Spacecraft. Priborostroenie, 2008, no. 8, pp. 5–12.
  10. Kablov E.N. Main directions of development of materials for aerospace technology of the 21st century. Perspektivnye materialy, 2000, no. 3, pp. 27–36.
  11. Chirov A.A., Belyakova N.G. Changes in the transparency of thin cesium films on the glass surface of spacecraft optical instruments. Poverkhnost. Rentgenovskie sinkhrotronnye i neytronnye issledovaniya, 2013, no. 12, pp. 98–103.
  12. Popov Yu.A. Kinetics of outgassing of volatile condensable substances from organic materials under long-term thermal vacuum exposure. Proc. 8th All-Union Conf. on Rarefied Gas Dynamics. Moscow, 1985, 196 p.
  13. Industry standard 92-9566–82. Non-metallic materials for external surfaces of products. Test method for mass loss and total content of volatile condensable substances therein under vacuum-thermal exposure. Moscow: Standartinform, 1982, 10 p.
  14. Kablov E.N., Ospennikova O.G., Vershkov A.V. Rare metals and rare earth elements – materials of modern and future high technologies. Trudy VIAM, 2013, no. 2, paper no. 01. Available at: http://www.viam-works.ru (accessed: February 11, 2025).
  15. Doronin O.N., Artemenko N.I., Stekhov P.A., Voronov V.A. Deposition of ceramic layers of heat protection coatings based on the system Gd2O3–ZrO2–HfO2 and Sm2O3–Y2O3–HfO2. Aviation materials and technologies, 2022, no. 3 (68), paper no. 10. Available at: http://www.journal.viam.ru (accessed: February 11, 2025). DOI: 10.18577/2713-0193-2022-0-3-108-119.
  16. Benarieb I., Antipov V.V., Khasikov D.V., Oglodkov M.S., Savichev I.D., Kuznetsova P.E. Study of structure and properties of sparinly alloyed aluminum alloy of Al–Mg–Sc–Zr system, produced by selective laser melting. Aviation materials and technologies, 2023, no. 4 (73), paper no. 03. Available at: http://www.journal.viam.ru (accessed: February 11, 2025). DOI: 10.18577/2713-0193-2023-0-4-23-35.
  17. Korolev D.V., Piskorskii V.P., Valeev R.A., Bakradze M.M., Dvoretskaya E.V., Koplak O.V., Morgunov R.B. Rare-earth RE–TM–B micromagnets engineering (review). Aviation materials and technology, 2021, no. 1 (62), paper no. 05. Available at: http://www.journal.viam.ru (accessed: February 11, 2025). DOI: 10.18577/2713-0193-2021-0-1-44-60.
  18. Budinovskiy S.A., Doronin O.N., Kosmin A.A., Benklyan A.S. Influence of the state of the YSZ target on its sputtering rate during deposition of a TBC ceramic layer by the UOKS-3 unit. Aviation materials and technologies, 2021, no. 2 (63), paper no. 09. Available at: http://www.journal.viam.ru (accessed: February 11, 2025). DOI: 10.18577/2713-0193-2021-0-2-85-92.
  19. Chelating ion-exchange resins. Chemical encyclopedia: in 5 vols. Moscow: Great Russian Encyclopedia, 1998, vol. 5, art. 440.
  20. Kablov E.N. Innovative developments of FSUE «VIAM» SSC of RF on realization of «Strategic directions of the development of materials and technologies of their processing for the period until 2030». Aviacionnye materialy i tehnologii, 2015, no. 1 (34), pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.