Influence addition of boron compounds to adhesives on the bonding quality and fungicidal properties of glued wood

IRG/WP 10-40497

M Humar, B Lesar, A Ugovsek, M Kariz, P Kralj, M Ĺ ernek

Wood is one of the most important construction materials. However, users of wood face two issues: limited dimensions and insufficient durability. These issues have been overcome with the development of bonding and wood preservation. The preservation of glued wood is elucidated in this paper. Through the addition of boric acid to adhesives, we tried to improve the fungicidal properties of glued wood. The results of mechanical testing (shear strength and delamination) showed that the addition of boric acid to glue did not have a negative impact on the performance of the glued wood. On the contrary, some properties were even improved. Unfortunately, the addition of boric acid to impregnated wood does not improve the resistance of the glued wood to brown rot fungi.

Keywords: adhesive, boric acid, delamination, diffusion, shear strength, wood

Conference: 10-05-09/13 Biarritz, France

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