New issues - Известия Казанского государственного архитектурно-строительного университета.

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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Ayaz G. Khantimirov, post-graduate student, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: khantimirov94@ kgasu.ru Alfred M. Sulejmanov, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Lyaylya A. Abdrakhmanova, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Rashit K. Nizamov, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Oleg V. Khokhryakov, doctor of technical sciences, docent, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleThe effect of modification on the durability of polyvinyl chloride wood-polymer composites
Abstract.Problem statement. One of the main problems in building materials science is the production of durable materials. For wood-polymer composites, this issue is particularly acute: the use of wood filler and operation in harsh climatic conditions negatively affect the properties. The positive effect of various modifiers on the physical and mechanical properties of wood-filled composites, such as carbon-based additives and fibrous fillers, is well known. However, such modified composites have not been sufficiently studied in terms of durability. The purpose of the work is to study the properties of wood-polymer composites based on polyvinyl chloride in conditions of artificial accelerated aging. The objectives of the study are: to study the influence of climatic factors on the strength properties and appearance of modified wood-polymer composites and to predict their service life. Results. The paper presents the results of accelerated tests for climatic effects of modified wood-polymer composites based on polyvinyl chloride. Carbon nanoadditives and fibrous fillers, which had previously shown their effectiveness for strengthening wood-filled composites, were used as modifiers. The most effective modifiers according to the test results are carbon additives (mechanically activated petroleum cokes and nanotubes), which showed a decrease in bending strength loss after accelerated aging by 1.9-4.1%. Conclusions. The significance of the results obtained for the construction industry is that forecasting the service life of wood-polymer composites based on polyvinyl chloride with increased strength properties will expand the scope of products based on them, including structural purposes.
Keywords.polyvinyl chloride, wood-polymer composite, basalt fiber, asbestos, fiber modifier, climatic tests, accelerated aging tests
For citations:Khantimirov A.G., Sulejmanov A.M., Abdrakhmanova L.A., Nizamov R.K., Khokhryakov O.V. The effect of modification on the durability of polyvinyl chloride wood-polymer composites // News KSUAE, 2023, № 3(65), p. 26-35, DOI: 10.52409/20731523_2023_3_26, EDN: CMSMHV


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