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Polylactic acid surface activation by atmospheric pressure dielectric barrier discharge plasma

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Polylactic acid (PLA) is suitable for applications in packaging and biomedicine due to its biodegradability. To improve PLA surface adhesion a plasma-chemical treatment using nonthermal plasma generated in ambient air via diffuse coplanar surface barrier discharge (DCSBD) was used. The optimal treatment time and power were investigated. Interaction between active plasma species and the polymer surface, and the resulting surface changes were studied by contact angle measurement, surface energy determination, FTIR, and XPS. The most hydrophilic surface was obtained after only 3–4 s treatment. Treatment up to 10 s did not damage the polymer but longer treatments (30 and 60 s) caused partial degradation. The plasma broke C-C/C-H bonds and formed more C-O, O-C=O and C-O-C bonds. During storage surface oxygen decreased and a negligible amount of nitrogen was adsorbed. The oxygen-containing functional groups probably sank into the PLA volume after treatment.
EN
Wydawca

Czasopismo
Rocznik
Tom
13
Numer
1
Opis fizyczny
Daty
otrzymano
2014-01-31
zaakceptowano
2014-05-07
online
2014-12-22
Twórcy
  • Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovak Republic
  • Fraunhofer Institute for Surface Engineering and Thin Films, Bienroder Weg 54 E, 38108 Braunschweig, Germany
  • Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovak Republic
  • Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovak Republic
  • R&D Center for Low-Cost Plasma and Nanotechnology Surface Modifications, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic
  • R&D Center for Low-Cost Plasma and Nanotechnology Surface Modifications, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic
  • Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovak Republic
  • R&D Center for Low-Cost Plasma and Nanotechnology Surface Modifications, Faculty of Science, Masaryk University, 611 37 Brno, Czech Republic
Bibliografia
  • [1] Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed.; Wiley: New York, 1982.
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  • [13] Medvecká V., Zahoranová A., Kováčik D., Greguš J., The effect of surface cleaning and removing of organic contaminants from silicon substrate and ITO glass by atmospheric pressure non-thermal plasma, Chem. Listy, 2012, 106, 1455-1459.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_chem-2015-0067
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