Development of technology for obtaining of biocomposites based on bone glue and wood flour

Purpose. Determine the temperature-time mode of heat treatment of biocomposite materials based on glutin glue and wood flour formed by hot pressing of the composition. Method. Biocomposite samples formed by hot pressing of composition consisting of glutin glue solution and wood flour. The compressive strength calculated by determining the maximum destructive load of cylindrical samples with a diameter of 20 mm. The samples compressed by static loading with a speed of movement of the lower traverse of the press 2 mm/min. Results. Polymer composite materials are widely used for the manufacture of products in various industries and technics due to their special properties. However, the growing level of environmental pollution and declining reserves of exhaustible resources is a reason to reduce the intensity of the use of polymer composites based on synthetic matrices and fillers. The solution is to introduce components of natural origin that are compatible with the environment and can be restored through annual or cyclical collection of plant materials. Processed fibers or powder materials of plant origin are suitable for use as fillers for biocomposite materials, but require study of the processes of structuring of system to develop technology for forming structural products. The formation of biocomposite products based on glutin glue and wood flour carried out using hot pressing, which consists in aging press-compositions at a temperature of 150 ° C for 3 h. During heat treatment, excess moisture removed and the process of structuring the biopolymer matrix is completed. The result is a biocomposite material with a compressive strength of 45-47 MPa, which is sufficient for the manufacture of the structural or decorative products. Scientific novelty. For the first time the technology of hot pressing of composition based on biopolymer binder and powder natural filler used. For the first time, the optimal mode of heat treatment of biocomposite materials was determined, which allowed to obtain a structural material with high specific strength. Practical significance. The developed biocomposite materials used for the manufacture of containers, decor elements of vehicle interiors, device housings and furniture. This will expand the raw material base, solve the problem of waste disposal and improve the environmental condition. 

glutin glue solution; hot pressing; heat treatment; strength