Influence of Composition and Plasma Power on Properties of Film from Biodegradable Polymer Blends

Abstract

The work is focused on the study of surface plasma treatment (DCSBD) of films from biodegradable polymers from renewable sources based on polylactic acid (PLA) and polyhydroxybutyrate (PHB). A 4-factor design of experiment was used where the selected variable parameters were the plasma device power, the time of plasma treatment, the ratio of PHB in the polymer blend with PLA, and the content of acetyl tributyl citrate (ATBC) plasticizer in the PLA + PHB blend. The surface total energy and the polar component were evaluated immediately after surface plasma treatment and after 5 h of sitting. Topography of foil surfaces was also studied by AFM. In terms of plasma power and activation time, the greatest increase in surface energy values was observed with a short plasma time of 2 s and a high power of 400 W. Increasing the content of ATBC in interaction with the high concentration of PHB in the blend results in a reduction in the difference of both the polar component and the total free surface energy.

On the Effect of Non-Thermal Atmospheric Pressure Plasma Treatment on the Properties of PET Film

“…These changes were described as bubble-shaped structures. It is accepted that this kind of change in surface morphology is assigned to the etching process [47,48]. It is interesting that these bubbleshaped structures were not observed on the surface of the film plasma-modified for 15 min (PET plasma 15min ).…”

Modification process of selected thermoplastics with cold plasma and evaluation of changes in their properties

“…Diffuse coplanar surface barrier discharge plasma treatment has also been studied in a set of films made of biodegradable polymers from renewable sources based on polylactic acid and polyhydroxybutyrate. A 4-factor experimental design was used, where the selected variable parameters were the power of the plasma device, the plasma treatment time, the ratio of polyhydroxybutyrate in the polymer mixture with polylactic acid and the content of the plasticizer acetyl tributyl citrate in the polylactic acid with polyhydroxybutyrate mixture [10]. In the plasma treatment of the surfaces of two engineering polymers including polyamide 66 and polytetrafluoroethylene by diffuse coplanar surface barrier discharges in atmospheric air, it was found that the adhesion of polyamide 66 for polymer/polymer or polymer/steel joints was improved, but it was selective for the investigated adhesive agents [11].…”

Erratum: Influence of Composition and Plasma Power on Properties of Film from Biodegradable Polymer Blends. Polymers 2020, 12, 1592

“…The authors wish to make a change to the published paper [1]. We wish to add an affiliation of Leona Omaníková and Ján Bočkaj-CEPLANT, Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlarska 2, 611 37 Brno, Czech Republic.…”