Influence of Air Cold Plasma Modification on the Surface Properties of Paper Used for Packaging Production Terpiłowski, Konrad Pérez Huertas, Salvador Cold plasma Low-pressure plasma Air plasma Plasma modification Paper Printing Composite material Adhesion Contact angle Surface free energy In this study, the effect of air plasma on the surface properties of printed and coated cardboard was investigated. The material was activated by low-pressure cold plasma for 1, 10, 20, and 30 s. Wettability changes on the surface were examined by contact angle measurements using the sessile droplet technique. The differences in the surface free energy were calculated using the Lifshitz–van derWaals/acid–base and Contact Angle Hysteresis approaches. Optical profilometry was used for the surface roughness evaluation and an X-ray photoelectron spectroscopy analysis was performed to find changes in surface chemistry. Adhesive strength tests were carried out to estimate the adhesion changes after the material’s modification. It was found that the water and formamide contact angles increased after the plasma treatment while the diiodomethane contact angle did not change. As a result of the modification, the surface free energy also increased significantly and the surface roughness increased. The pull-off tests confirmed the improvement in the material’s surface properties. Moreover, it was demonstrated that the optimal effect can be obtained after just 10 s of the plasma process. 2022-04-22T11:53:35Z 2022-04-22T11:53:35Z 2022-03-22 info:eu-repo/semantics/article Terpiłowski, K... [et al.]. Influence of Air Cold Plasma Modification on the Surface Properties of Paper Used for Packaging Production. Appl. Sci. 2022, 12, 3242. [https://doi.org/10.3390/app12073242] http://hdl.handle.net/10481/74478 10.3390/app12073242 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España MDPI