Study of Modified Wood by Electron Microscopy

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UDС

674.812.02

DOI:

10.37482/0536-1036-2020-1-190-199

Abstract

Wood modification is a popular method for improvement of wood properties of low-value deciduous species. The method of pressing across the wood fibers preliminarily plasticized with urea was used in order to increase the strength properties. Impregnation with Biol mineral oil was used for the improvement of anti-friction properties. Metallic nickel is introduced into wood in the form of a continuous metal film lining the inner surface of wood cavities for thermal conductivity increasing. Studies carried out with the listed catalog samples using scanning and upright electron microscopes allowed to find, that: carbamide is located in the walls of cells and manifests itself in the cavities very sharply in the form of single crystals; pressing of wood plasticized with urea leads to flattening of anatomical elements without their destruction; Biol oiling with its low content spreads as a film on the cell walls and is not visualized; metallic nickel is present in wood in the form of film and individual elements on the cell walls. Weight and atomic microanalyses of the longitudinal section were performed for it.

Authors

V.A. Shamaev, Doctor of Engineering, Prof.; ResearcherID: Y-9044-2018, ORCID: 0000-0002-1762-7956

Affiliation

Voronezh State University of Forestry and Technologies named after G.F. Morozov, ul. Timiryazeva, 8, Voronezh, 394087, Russian Federation; e-mail: drevstal@mail.ru

Keywords

wood, microstructure, modification, electron microscopy

Funding

The research materials presented in the article were obtained within the framework of the state assignment of the Ministry of Education and Science of the Russian Federation No. 11.3960.2017/4.6

For citation

Shamaev V.A. Study of Modified Wood by Electron Microscopy. Lesnoy Zhurnal [Russian Forestry Journal], 2020, no. 1, pp. 190–199. DOI: 10.37482/0536-1036-2020-1-190-199

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Received on May 23, 2019