Composites based on waste products from the production of 5-hydroxymethylfurfural - "humins" and melamine or urea (as a cross-linking agent) with wood fl our (as a filler, 70 % by weight) were obtained. Studies of the physical and mechanical properties of materials with different contents of melamine or urea have been carried out, which have shown that the composites humins: melamine (2,5: 1) and humins:urea (2:1) have a tensile strength of 150 and 165 MPa, respectively, similar to composites based on melamine and urea-formaldehyde resins.
Wine is a complex product which changes its properties at every production stage, however due to the different processes which take place in the production stage can result into the formation of unwanted turbidity, deposition or can lead to distortion of taste. Despite the advances in improving wine stabilization processes, the search for new materials continues. The present work focuses on clarification of wines on the basis of new polymers and carbon materials obtained from bio-renewable raw materials and byproducts from the production of 2,5-hydroxymethylfurfural (5-HMF).
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