Effect of cellulose type on microstructure and properties of cellulose/curcumin/chitosan coatings obtained on titanium substrates by electrophoretic deposition - replication data

The findings indicated that the pure cellulose dispersed systems had a negative zeta potential, indicating the mechanism of chitosan molecules being adsorbed on the surface of dispersed additives and co-depositing with them on the cathode.

CMC and chitosan form a hydrogel-like polyelectrolyte complex structure in a dispersed system, preventing the possibility of obtaining homogeneous coatings via EPD regardless of the process parameters. However, coatings containing CNFs proved to be homogeneous and exhibited high adhesion strength and enhanced scratch resistance, and thus have been selected as the most promising. Their microstructure consisted of submicrometric spherical curcumin particles and CNFs of various sizes homogeneously embedded in the chitosan matrix.