| Abstrakt: |
An analysis of the bonding process of thermally modified wood and found that the manufacture of glued products causes some difficulties in ensuring adhesion. One of the promising areas of use of thermally modified wood is the manufacture of glued products. Therefore, knowledge of the physical and mechanical properties of thermally modified wood, indicators of its quality, adhesion to organic adhesives, allows you to make a choice based on economic indicators, duration and safety. In addition, during the modification of wood, the process of polymerization and redistribution through the volume of the cell and give the cell walls greater density, hardness, increase hydrophobicity (water repellency), thereby reducing their ability to absorb moisture and edema. As a result of experimental studies, it was found that the nature of the destruction for the whole group of samples, which were based on glue, is the same. The additional effect of temperature or humidity did not show a significant difference in comparison with the control samples. It was found that in samples of untreated ash wood and modified at a temperature of 160, 220 °C, the destruction occurs on the glued layer. The results of the research will allow to solve further problems on the creation of new composites from thermally modified wood and the conditions of their operation at various sites. [ABSTRACT FROM AUTHOR] |
