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Surface modification of polyethylene by diffuse barrier discharge plasma

SYSNO ASEP	0390833
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Surface modification of polyethylene by diffuse barrier discharge plasma
Author(s)	Novák, I. (SK) Števiar, M. (SK) Popelka, A. (SK) Chodák, I. (SK) Mosnáček, J. (SK) Špírková, Milena (UMCH-V)_{RID, ORCID} Janigová, I. (SK) Kleinová, A. (SK) Sedliačik, J. (SK) Šlouf, Miroslav (UMCH-V)_{RID, ORCID}
Source Title	Polymer Engineering and Science. - : Wiley - ISSN 0032-3888 Roč. 53, č. 3 (2013), s. 516-523
Number of pages	8 s.
Language	eng - English
Country	US - United States
Keywords	low-density polyethylene ; plasma discharge ; surface modification
Subject RIV	JI - Composite Materials
R&D Projects	IAAX08240901 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40500505 - UMCH-V (2005-2011)
UT WOS	000315094900008
DOI	10.1002/pen.23280
Annotation	Low-density polyethylene (LDPE) modified by atmospheric dielectric surface barrier discharge plasma in oxygen was investigated to improve surface properties and adhesion of LDPE to more polar polymers. The process of plasma modification was investigated using several methods-surface energy measurements, Fourier Transform Infrared Spectroscopy with Attenuated Total Reflectance (FTIR-ATR), Scanning Electron Microscopy (SEM), and Atomic Force Microscopy (AFM). The surface energy of LDPE increased significantly after activation by oxygen barrier plasma even at very short time of modification. The FTIR-ATR spectra manifested the presence of carbonyl functional groups on the surface of polymer pretreated by oxygen barrier plasma. It was shown by SEM, and AFM, that the topography of modified LDPE was significantly changed and the surface of modified polymer exhibited higher roughness in comparison with unmodified polymer. The surface energy of treated LDPE diminished in the course of ageing especially during the first 10 days after modification by barrier plasma. Hydrophilicity of the modified LDPE surface was stabilized by photochemical post-functionalization with 2,2,6,6-tetramethylpiperidin- 4-yl-diazoacetate.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2013

Number of the records: 1