DETERMINATION OF THE OPTIMAL COMPOSITION OF ENVIRONMENTALLY FRIENDLY WOOD GLUE BASED ON OXIDIZED STARCH
Authors
Ortiqov Sherzod Sharof og’li, Sharipov Muzafar Samandarovich, Radjabov Otabek Iskandarovich, Khudoyberdiyev Shuhrat Shamsiddinovich
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In this article, the composition, film-forming properties and structural changes of composite wood glues based on oxidized starch (OS) were studied. The compositions included polyacrylic acid (PAA), polyvinyl alcohol (PVA), citric acid and urea, and the physicomechanical properties of film samples in their different mass ratios were studied. The results of the study confirmed that the composition and ratio of components have a significant effect on the film moisture content, thickness and relative elongation. In particular, the highest elasticity and low moisture content were observed in the OS:PAA:CA system with a ratio of 60:35:5. IR-spectral analysis showed the formation of hydrogen bonds and ether bonds during the modification process. Based on the results, it was found that oxidized starch-based compositions form a dense and stable polymer structure and are a promising material for creating environmentally friendly wood glues.
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Authors
Ortiqov Sherzod Sharof og’li, Sharipov Muzafar Samandarovich, Radjabov Otabek Iskandarovich, Khudoyberdiyev Shuhrat Shamsiddinovich
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