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Acoustic and Mechanical Properties Bio-based Materials Wood Protection Open Access Journal article

THE EFFECT OF MODIFICATION ON THE DURABILITY OF WOOD AND WOOD PLASTICS

V. P. Yartsev, О. А. Киселева, Pavel V. Monastyrev, Valery YEZERSKY

10 March 2025 · Bulletin of Belgorod State Technological University named after V G Shukhov

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Abstract

The following materials were chosen as the object of research: wood, laminate, chipboard and fiberboard, as they have been widely used in construction. Wood materials are distinguished by a valuable combination of properties such as high strength and low thermal conductivity, while possessing low water resistance and bio-resistance. This article discusses one of the ways to solve this problem – the modification of wood materials with liquid monomers: C and M emucriles, emulsion 252, acrate AS02. The effect of modifiers on properties such as strength, water absorption, swelling, water resistance, fire resistance and biostability of materials was revealed. However, during operation, any product and structure is exposed to several factors simultaneously for a long time: temperature, load, humidity, aging, etc. Therefore, during the research, special attention was paid to the study of the durability of modified wood materials of various structures. To identify patterns of long-term operation of materials, comprehensive tests were carried out, taking into account the simultaneous effect of load, time and temperature of operation. The issue of changing the structure of wood plastics during their modification was also raised. The presented results will make it possible to predict the operability of modified wood materials under prolonged exposure to operational factors, i.e. temperature and load. Based on the results obtained, the optimal modification mode was established (impregnation with monomers for 3 days and heat treatment at 80 ° C for wood and chipboard for 8-10 hours, for laminate – 6 hours). To increase the hydrophysical properties of wood materials, ac-ratam and emucryl M. The modification makes it possible to delay the appearance of undesirable processes in the form of plaque and rot by two to three times.

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