engleski

Plasma assisted modification of cellulosic substrates and their impregnation of nanoparticles synthesized by laser ablation in water

Plasma treatments of cellulose and cellulose based materials (paper, cellophane, cotton linters, viscose fibers, cellulose acetate) can efficiently change their surface properties, such as wettability (e.g. reduction of their hydrophobic character and increase of wettability), surface energy and adhesion (to improve the strength of their adhesion to the matrix in composite materials). In the paper industry, plasma treatment has already been implemented in several laboratory studies, pilot-scale and also some industrial environments in order to modify surface characteristics of fibers and paper. Using APPJ plasmas we plan to study an improvement of adhesion of inks, adhesion of metals and metal nanoparticles, and increase of the impermeability of a transparent film after printing. In this study, we combined two different scientific fields (physics and chemistry) to improve current state-of-the-art of nanoparticles impregnation into cellulose and cellulose based materials and tailor their properties. Therefore cellulose substrates were modified using atmospheric pressure plasma jets (APPJ) [1-3]. In addition, we studied impregnation of nanoparticles in cellulose assisted by an APPJ plasmas and compared it to spin coating process as a standard reference. The applied nanoparticles (Au, Ag, Cu) were synthesized by laser ablation techniques from elemental metals deposited in liquids. This led to cellulose with improved surface properties decorated with nanoparticles of interest. References [1] X. Lu, G.V. Naidis, M. Laroussi, S. Reuter, D.B. Graves, K. Ostrikov, Reactive species in non-equilibrium atmospheric-pressure plasmas: Generation, transport, and biological effects, Physics Reports 630 (2016) 1–84 [2] Zaplotnik Rok, Bišćan Marijan, Krstulović Nikša, Popović Dean and Milošević Slobodan, Cavity ring-down spectroscopy for atmospheric pressure plasma jet analysis, Plasma sources science & technology 24 (2015) , 5 [3] Claire Tendero et al, Atmospheric pressure plasmas: A review, Spectrochimica Acta Part B 61 (2006) 2-30

Plasma assisted modification of cellulosic substrates, impregnation of nanoparticles

nije evidentirano