OPTIMIZATION OF TECHNOLOGICAL PARAMETERS THERMO-CHEMICAL MODIFICATION OF SOFT DECIDUOUS WOOD ROCKS IN ORDER TO OBTAIN THE MAXIMUM GENERALIZED CRITERION FOR ASSESSING THE QUALITY OF PHYSICAL AND MECHANICAL PROPERTIES

UDC 674.048.5

  • Ignatovich Lyudmila Vladimirovna − PhD (Engineering), Associate Professor, Assistant Professor, the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13а, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: ignatovich@belstu.by, lignatovich6@gmail.com

  • Tuleyko Valery Valentinovich − PhD (Engineering), General Director of JSC “Rechitsadrev” (17/19 str. 10 years of October, 247500, Rechitsa, Gomel region, Republic of Belarus). E-mail: info.rechitsadrev@wood.by

  • Chuikov Aleksey Sergeevich − PhD (Engineering), Head of the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: offlex88@mail.ru, offlex88@belstu.by

  • Utgof Svetlana Sergeevna − PhD (Engineering), Senior Lecturer, the Department of Technology and Design of Wooden Articles. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: utgof@belstu.by

DOI: https://doi.org/10.52065/2519-402X-2021-246-33-260–267

Key words: resin, wood, properties, modification, quality assessment, generalized criterion.

For citation: Ignatovich L. V., Tuleyko V. V., Chuikov A. S., Utgof S. S. Оptimization of technological parameters thermo-chemical modification of soft deciduous wood rocks in order to obtain the maximum generalized criterion for assessing the quality of physical and mechanical properties. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2021, no. 2 (246), pp. 260–267 (In Russian).DOI: https://doi.org/10.52065/2519-402X-2021-246-33-260–267.

Abstract

Soft deciduous wood - birch, alder, aspen, etc. has a number of disadvantages that limit its use in floor coverings. It cracks easily when dried, has low strength, hardness and wear resistance. To eliminate these disadvantages, a protective wood treatment is used - modification with synthetic polymers. Modified softwood can effectively work in floor coverings of not only residential, but also office buildings and structures due to increased stability of geometric dimensions, hardness and wear resistance.

When choosing one or another method of modifying wood for a specific purpose, a situation often arises when some properties of the material in question are lower, while others are higher. When carrying out studies of thermo-chemical modification of soft leaf wood in order to obtain the maximum generalized criterion for assessing the quality of physical and mechanical properties, the optimal content of the components of urea-formaldehyde impregnating resin KFS-140 and the parameters of the impregnation process, in which the complexes of physical and mechanical properties of modified wood have maximum values. The article considers the method of a generalized criterion for assessing the quality of modified wood based on the optimization of technological parameters (the composition of the impregnating resin and the impregnation process), it is possible to develop the optimal composition and technological parameters for obtaining a material with a complex of required physical and mechanical properties.

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