Study of Modified Wood by Electron Microscopy
Journal Title: Lesnoy Zhurnal (Russian Forestry Journal) - Year 2020, Vol 10, Issue 1
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 and Affiliations
V. A. Shamaev
An Indicator for Assessing the Effectiveness of Organizing Forest Fire Protection
The article briefly analyzes the main indicators used to assess the effectiveness of the organization of forest fire protection in the Russian Federation. The need to improve approaches to such an assessment has been sub...
Effect of Technical Aerosil on the Properties of Adhesive Compositions
The main drivers of competition among the products made with the use of adhesive compositions are the toxicity of finished products, the consumption of raw materials and energy resources, the duration of the main technol...
Typification of Forest Areas by Natural-Production Conditions Based on Cluster Analysis
The effectiveness of harvesting machines, their reliability, and the level of negative environmental impact depends on the degree of adaptation of the equipment to natural-production conditions (NPC). To choose the equip...
System Analysis of Process Efficiency of the Wheeled Forwarder
One of the promising directions of increasing productivity in forestry production is a systematic approach to specifying the process efficiency of the wheeled forwarder based on constructing a single technological connec...
Differentiation of Plus Trees of Scots Pine by Xylem Conditions
 An essential stage in the establishment of seed orchards is the formation of an optimal composition, avoiding inbreeding depression in the produced seed material, which develops as a result of crossbreeding between clo...