STUDY OF THE PHYSICAL-MECHANICAL PROPERTIES OF WOOD COMPOSITE BOARDS (DSP, MDF, HDF) USING MODERN TESTING METHODS

Abstract

The thesis presents a comparative analysis of the physical-mechanical properties of wood particle- and fiber-based boards widely distributed in the Uzbekistan market — DSP, LDSP, MDF, HDF, and LMDF — according to the country of manufacture (Russia, Europe, Iran). The tests were carried out in an accredited testing laboratory in accordance with the requirements of GOST 10632-2014, GOST 32289-2013, and O'zDSt 3478-2020 standards using the methodologies of GOST 10634-88, GOST 10635-88, and GOST 27680-88. Key indicators such as bending strength limit, density, moisture content, thickness swelling, and thickness deviation were determined. The obtained results confirmed that the products of European manufacturers possess the highest indicators in terms of strength and dimensional stability, while LMDF (laminated MDF) board demonstrated the best overall performance.