AP08855714 — Thermal insulation coatings based on finely dispersed mineral granular systems

The main objective of the project: Development of constitutions of energy-efficient heat-insulating coatings based on fine-dispersed mineral granular systems

The relevance of the project: For the first time based on local mineral raw materials of the Republic of Kazakhstan, the compositions of liquid heat-insulating coatings with a complex of improved performance characteristics will be developed. Reducing the cost of expensive imported hollow microspheres due to the introduction of fine dispersed mineral fillers into the composition of filled binders will allow to form a structure of increased porosity and, as a result, lower density and heat conductivity, and to reduce the cost of production, which will increase the competitiveness of products. The urgency of this problem for the Republic of Kazakhstan and the Russian Federation is due, first of all, to the very low average annual temperature, the considerable duration of the heating season, as well as to the large number of obsolete and worn-out equipment. For example, in Kazakhstan, the average annual temperature (except for the south) is sharply continental with an average temperature between -4 ° C and -19 ° C in January and between + 19 ... + 26 ° C in July. In winter, the temperature may drop to -45 ° C, and in summer to rise up to +30 ° C.

Scientific adviser:  Ph.D., Associate Professor, Zhanar O. Zhumadilova

Results obtained: Within the research project, a comprehensive analysis of scientific publications and patent literature on liquid thermal insulation coatings and filled polymer systems was carried out. The mechanisms of heat transfer in heterogeneous materials and the key structural parameters affecting thermal conductivity were studied. Experimental investigations of the physical-mechanical and thermal properties of the developed compositions were conducted. The influence of hollow microspheres and mineral fillers on the performance characteristics of the coatings was evaluated. The behavior of materials under climatic exposure and long-term field testing conditions was analyzed. Recommendations were developed to optimize the composition and production technology of thermal insulation coatings. The obtained results confirm the effectiveness and industrial applicability of the developed materials.

List of publications with links to them

1. Жұмаділова Ж.О., Кульдеев Е.И., Нурлыбаев Р.Е., Орынбеков Е.С. Теоретические исследования проблемы энергосбережения в строительном секторе // Вестник Казахской головной архитектурно-строительной академии. Строительные конструкции и материалы. – 2020. – №4(78). – С. 173. – DOI: https://doi.org/10.51488/1680-080X/2020.4-25. – URL: https://vestnik.kazgasa.kz/frontend/web/uploads/personal-documents/1629614912_vCgDIu.pdf
2. Zhumadilova Z.O., Selyaev V.P., Nurlybaev R.E., Orynbekov Y.S., Sangulova I.B. Study of energy-saving liquid thermal insulating coatings based on local finely dispersed systems // Periódico Tchê Química. – 2021. – Vol. 18(37). – P. 189. – DOI: https://www.webofscience.com/wos/woscc/full-record/WOS:000631445600013
3. Селяев В.П., Нурлыбаев Р.Е., Сангулова И.Б., Кечуткина Е.Л. Оптимизация составов теплоизоляционных покрытий на основе водной дисперсии полимерных вяжущих // Эксперт: теория и практика. Строительные материалы и изделия. – 2021. – №4(13). – С. 23–28. – DOI: https://doi.org/10.51608/26867818_2021_4_23
4. Zhumadilova Z.O., Selyaev V.P., Nurlybaev R.E., Orynbekov Y.S., Sangulova I.B., Kuldeev E.I. Prediction of durability of thermal insulating epoxy coatings with regard to climatic ageing // Polymers. – 2022. – Vol. 14(9). – 1650. – DOI: https://doi.org/10.3390/polym14091650
5. Zhumadilova Z.O., Nurlybaev R.E., Orynbekov Y.S., Joldassov A.A., Abdikarimov M.N. Study of the protective properties of thermal-insulating coatings under conditions of long-term exposure to natural climatic factors // Coatings. – 2022. – DOI: https://doi.org/10.3390/xxxxx (уточняется по публикации)
6. Sangulova I.B., Selyaev V.P., Kuldeev E.I., Nurlybaev R.E., Orynbekov Y.S. Assessment of the influence of the structural characteristics of granular systems of microsilicon on the properties of thermal insulation materials // Complex Use of Mineral Resources. – 2022. – №1(320). – DOI: https://doi.org/10.31643/2022/6445.01
7. Orynbekov Y.S., Zhumadilova Z.O., Selyaev V.P., Nurlybaev R.E., Sangulova I.B. The influence of climatic factors on the change in the elastic-strength indicators of epoxy polymer binders used in liquid thermal insulation coatings // Southern Journal of Sciences. – 2022. – Vol. 30(33). – P. 44–53. – URL: https://www.sjofsciences.com/server/jornal/2022_v1.pdf
8. Thermal insulation coatings based on finely dispersed mineral granular systems: monograph / Zhumadilova Z.O., Selyaev V.P., Nurlybaev R.E. [et al.]. – Almaty: Poly Tech Edition, Satbayev University, 2022. – 178 p. – ISBN 978-601-323-279-9.
9. Thermal insulation based on dispersed microsilica powders: tutorial / Selyaev V.P., Nurlybaev R.E., Zhumadilova Z.O. [et al.]. – Tolyatti, 2022. – 160 p. – ISBN 978-601-325-278-9.
10. Жұмаділова Ж.О., Селяев В.П., Нурлыбаев Р.Е., Орынбеков Е.С., Джолдасов А.А., Хамза Е.Е. Эпоксидное теплоизоляционное покрытие: заявка на полезную модель РК №2022/0931.2 от 26.10.2022.
11. Жұмаділова Ж.О., Нурлыбаев Р.Е., Орынбеков Е.С., Селяев В.П., Джолдасов А.А. Водорастворимое теплоизоляционное покрытие: заявка на полезную модель РК №2022/0930.2 от 26.10.2022.