Activation of silver nanoparticles by hydrophilic encapsulation for antimicrobial powder coated surfaces

Antimicrobial Powder Coatings Based on Environmentally Friendly Biocides

“…The FTIR spectrum (Figure ) of CH/MMT is dominated by the absorption bands of montmorillonite; however, it contains additional peaks near 2900 cm –1 and at 1530 cm –1 , which are derived from chitosan and correspond, respectively, to the aliphatic C–H stretching and protonated amine group deformation vibrations. This confirms the protonation of nitrogen atoms in chitosan, which enables the interaction between –NH 3 + groups and negatively charged sites of MMT . The presence of protonated ammonium groups is also a key factor influencing antibacterial properties of chitosan…”

“…This confirms the protonation of nitrogen atoms in chitosan, which enables the interaction between −NH 3 + groups and negatively charged sites of MMT. 23 The presence of protonated ammonium groups is also a key factor influencing antibacterial properties of chitosan. 18 Acrylic Resin Characterization.…”

“…The purpose of this work is to investigate the effect of chitosan and chitosan intercalated in montmorillonite on the antimicrobial and application properties of powder coatings. In recent years, there have been several publications and market informations regarding antimicrobial powder coatings containing silver; − however, there have been no similar reports on the use of natural biocides in powder coatings. On the other hand, while numerous studies have been published on the nanocomposites of chitosan and montmorillonite, they mainly focus on systems where chitosan is the continuous phase.…”