The effect of the content of hydrolytic lignin on the performance of the finishing material based on plastic without resins
https://doi.org/10.21266/2079-4304.2023.245.293-307
Abstract
Samples of plastic without resins (PWR) based on wood filler in various ratios with hydrolyzed lignin were obtained. The PWR samples were pressed in a sealed mold at a pressure of 40 MPa and a temperature of 180 C, followed by its cooling without pressure relief to 40 C. The obtained samples were tested for bending strength, for water absorption in 24 hours and 30 days, and for biostability with respect to active soil in 21 days. Also, the acquired color characteristics of the front surface were determined in the samples in order to evaluate decorative indicators. Based on the obtained test results for the minimum necessary properties for finishing materials (strength, water and bio-resistance, decorative properties), a rational ratio of the press composition with the content of hydrolytic lignin in the range of 40-60% was established. With this ratio, the following indicators of the material are achieved: bending strength – 11.4–12.4 MPa; water absorption in 24 hours – 27%; water resistance of the material without the onset of destructive processes reaches up to 21 days; biostability in the presence of a constant moist and pathogenic environment is local without through erosion, the color coloration of the front surface by a sixteen– digit color coding corresponds to the colors from jade to spruce.
About the Authors
A. V. Artyomov
Ural State Forest Engineering University
Russian Federation
Russian Federation
ARTYOMOV Artyom V. – PhD (Technical), Associate Professor of the department technology of pulp and paper industries and polymer processing
620100. Siberian tract 37. Yekaterinburg
A. V. Vurasko
Ural State Forest Engineering University
Russian Federation
Russian Federation
VURASKO Alesya V. – DSc (Technical), Professor of the department technology of pulp and paper industries and polymer processing
620100. Siberian tract 37. Yekaterinburg
A. S. Ershova
Ural State Forest Engineering University
Russian Federation
Russian Federation
ERSHOVA Anna S. – PhD student of department technology of pulp and paper industries and polymer processing
620100. Siberian tract 37. Yekaterinburg
V. G. Buryndin
Ural State Forest Engineering University
Russian Federation
Russian Federation
BURYNDIN Victor G. – DSc (Technical), Professor of the department technology of pulp and paper industries and polymer processing
620100. Siberian tract 37. Yekaterinburg
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Review
For citations:
Artyomov A.V., Vurasko A.V., Ershova A.S., Buryndin V.G. The effect of the content of hydrolytic lignin on the performance of the finishing material based on plastic without resins. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2023;(245):293-307. (In Russ.) https://doi.org/10.21266/2079-4304.2023.245.293-307
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