In the research, we studied the effects of the use of Burnblock additive on the quality of wood-based panel. We determined the physical, mechanical and fire properties of the panels we made. We produced plywood and particle boards (various compositions) and their combination. Melamine – urea formaldehyde adhesive H97 (Melamine Kočevje) was used for gluing. Before making the boards, the wood particles were impregnated with Burnblock solution by immersion. After immersion, we had a dry intake of 25 – 30 kg/m3. After the tests, we found out that the density of particle boards decreased with increasing the share of impregnated wood particles, while the opposite was found for plywood (more impregnated sheets, higher density). Burnblock had a negative effect on the mechanical properties of particle boards, although in the case of plywood this was not noticeable, primarily due to the density. In terms of fire properties, Burnblock had a positive effect on weight loss. With 50% impregnated wood particles in the particleboard,the reduction of the weight was more than 10%. From all the panels made, we finally chose the best two. In the case of particle boards, it was a board with 50% impregnated wood particles (IP 50), and in the case of plywood, a nine-layer board, where the core is made of three unimpregnated veneers, while the rest are impregnated (FP E).
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