Abstract:

Wooden coatings, which are used in almost every area of daily life, are given functional properties according to the needs of the areas of use. In applications where sterile areas are required, the antimicrobial feature of wood coatings is one of the most important examples of functional wooden coatings. In addition, it is an important advantage that hydrophilic or hydrophobic wood coatings can be preferred according to the usage area. In this study, it was aimed to investigate the antimicrobial and surface properties of quaternized carboxymethyl cellulose (CMC) based wood coatings. Firstly, quaternized CMC was synthesized and quaternized CMC was impregnated on beech, oak and mahogany wood veneers by dipping method. The antimicrobial activities of the obtained functionalized wood coatings were investigated against both gram positive (S. aureus) and gram negative (E. coli) bacteria using the zone of inhibition (disk diffusion) method. The surface properties of the coatings were determined by measuring their contact angle with water. In addition, the cell lumens of the wood veneers were examined by scanning electron microscopy (SEM), in which quaternized CMC was filled. From the results obtained, it was determined that the cell lumens of the wooden coatings were successfully filled with quaternized CMC and the coatings were given antimicrobial properties and hydrophilic character.

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