On surface elementary processes and polymer surface modifications induced by double pulsed dielectric barrier discharge

被引：19

作者：

Chiper, A. S. ^{[1
]}

Nastuta, A. V. ^{[1
]}

Rusu, G. B. ^{[1
]}

Popa, G. ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Dept Plasma Phys, Iasi 700506, Romania

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2009年 / 267卷 / 02期

关键词：

Double dielectric barrier discharge; Atmospheric pressure plasma; Polymer surface treatment; PRESSURE; POLYETHYLENE; OXIDATION;

D O I：

10.1016/j.nimb.2008.10.051

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this paper, polyethylene terephthalate and polyethylene films were plasma treated using a dielectric barrier discharge (DBD), which presents a second current pulse with inverse polarity induced at the decreasing applied voltage flank in addition to the main current pulse. The surface modifications of polymer samples were pointed out by two complementary methods: the contact angle method and atomic force microscopy (AFM) technique. The influence of the voltage pulse parameters as width, falling rate and frequency on the secondary discharge formation was studied and correlated with polymer surface modifications. The plasma treatment is improved when the discharge is driven by a voltage pulses with very fast falling flank. After plasma treatment, roughness of the PE films is not considerably changed; only topographical modifications of PE treated samples being observed, while treated PET surfaces present an increased roughness and a new granular structure, with much smaller features compared to the pristine ones. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：313 / 316

页数：4

共 8 条

[1] The surface oxidation of selected polymers using an atmospheric pressure air dielectric barrier discharge. Part II [J].