scholarly journals Plasma Treatment of Poly(ethylene terephthalate) Films and Chitosan Deposition: DC- vs. AC-Discharge

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 508
Author(s):  
Tatiana S. Demina ◽  
Mikhail S. Piskarev ◽  
Olga A. Romanova ◽  
Andrey K. Gatin ◽  
Boris R. Senatulin ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Photoelectron Spectroscopy ◽  
Ethylene Terephthalate ◽  
Biomedical Application ◽  
Control Surface ◽  
Force Microscopy ◽  
Angle Measurements ◽  
Atomic Force ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Plasma treatment is one of the most promising tools to control surface properties of materials tailored for biomedical application. Among a variety of processing conditions, such as the nature of the working gas and time of treatment, discharge type is rarely studied, because it is mainly fixed by equipment used. This study aimed to investigate the effect of discharge type (direct vs. alternated current) using air as the working gas on plasma treatment of poly(ethylene terephthalate) films, in terms of their surface chemical structure, morphology and properties using X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy and contact angle measurements. The effect of the observed changes in terms of subsequent chitosan immobilization on plasma-treated films was also evaluated. The ability of native, plasma-treated and chitosan-coated films to support adhesion and growth of mesenchymal stem cells was studied to determine the practicability of this approach for the biomedical application of poly(ethylene terephthalate) films.

Surface reconstruction of UV-laser irradiated poly(ethylene terephthalate) by atomic force microscopy

1992 ◽  
Vol 59 (3-4) ◽  
pp. 267-271 ◽  
Author(s):  
Lothar Wefers ◽  
Dierk Knittel ◽  
Dirk Bosbach ◽  
Werner Rammensee ◽  
Eckhard Schollmeyer
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Reconstruction ◽  
Ethylene Terephthalate ◽  
Uv Laser ◽  
Force Microscopy ◽  
Atomic Force ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Microstructural Modifications in Electron Beam Irradiated Poly(ethylene terephthalate) Fibrics

2011 ◽  
Vol 415-417 ◽  
pp. 1816-1820
Author(s):  
Chuan Ding ◽  
Jian Chun Zhang ◽  
Xue Qiang Liu ◽  
Hua Zhang ◽  
Xin Xing Feng
Keyword(s):  
Electron Beam ◽  
Radiation Effects ◽  
Ethylene Terephthalate ◽  
X Ray Diffraction ◽  
Beam Radiation ◽  
Force Microscopy ◽  
Atomic Force ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Degradation Effect

Electron beam radiation effects of PET have been investigated. Microstructural changes in poly(ethylene terephthalate) subjected to electron beam irradiation at doses of 50kGy, 100kGy, 200kGy, 400kGy were investigated by Attenuated total reflectance infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD) , Atomic force microscopy (AFM) and scanning electron microscopy (SEM). Irradiated samples showed a increase of crystallinity with a minimum at 200kGy, which is attributed to secondary crystal and then an decrease at further doses due to some degradation effect. The chemical structure and surface topography has only a slight change with irradiation.

Sign in / Sign up

Export Citation Format

Share Document