Plasma Processes and Polymers
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Online ISSN: 1612-8869
Recently Published Articles
- Chemical seeding via propanol plasma pretreatment for improving adhesion and properties of PECVD siloxane coatings on polymers
Jonathon F. S. Markanday, Eric Charrault, Drew Evans, Kamil Zuber and Colin Hall
Version of Record online: 8 DEC 2016 | DOI: 10.1002/ppap.201600106
Incorporation of hydroxyl groups at the start of the deposition via a propanol plasma pretreatment alter the seeding and growth of a thin film and give rise to mechanical and optical property changes. The plasma pretreated samples exhibited increased hardness and modulus and serve to illustrate how pretreatments may be used for alteration of thin film properties other than adhesion.
- Deterministic and Monte Carlo methods for simulation of plasma-surface interactions
Daniil Marinov, Carlos Teixeira and Vasco Guerra
Version of Record online: 23 NOV 2016 | DOI: 10.1002/ppap.201600175
A review of methods to model surface chemical kinetics in reactive plasmas is presented. Deterministic models are formulated in terms of coverages of surface active sites while in Monte-Carlo simulations individual surface species are followed independently. We show that both approaches give identical results when applied to a simple model systems. However, the advantage of Monte-Carlo methods is that they can be used to simulate kinetics on realistic disordered surfaces.
- Modeling of Thermal Plasma Processes: The Importance of Two-Way Plasma-Surface Interactions
Anthony B. Murphy and Hunkwan Park
Version of Record online: 21 NOV 2016 | DOI: 10.1002/ppap.201600177
The effect of materials on the plasma is often neglected in computational models of thermal plasma applications, even though most models consider the influence of the plasma on the surface. However, in many applications (including plasma cutting, spheroidization, nanoparticle production and spraying, arc welding and circuit interruption), effects such as vaporization of the surface material and heat transfer to particles mean that two-way interactions are critical.
- Critical remarks on chemical derivatization analysis of plasma-treated polymer surfaces and plasma polymers
Claus-Peter Klages and Stefan Kotula
Version of Record online: 21 NOV 2016 | DOI: 10.1002/ppap.201600210
The traditional belief that amino groups of plasma-treated polymer surfaces or plasma polymers can be quantified using derivatization with “amino-selective” reagents is a myth. Amino group concentrations in the literature must generally be considered to include substantial contributions from other nitrogen-containing groups, e.g., imines. It is questionable if amino groups are stable against plasma or VUV exposure at all. Advancing the understanding of plasma-generated films and surfaces requires new approaches such as FT-IR spectroscopy combined with H/D isotope exchange.
- An atmospheric-pressure microplasma array produced by using graphite coating electrodes
Yang Xia, Wenchun Wang, Dongping Liu, Yifeng Peng, Ying Song, Longfei Ji, Yao Zhao, Zhihua Qi, Xueyang Wang and Bin Li
Version of Record online: 21 NOV 2016 | DOI: 10.1002/ppap.201600132
An array of atmospheric pressure plasma jets can be used for large-surface plasma treatment at atmospheric pressure. An easy assembled atmospheric-pressure microplasma array (APMPA) with graphite coating electrodes was presented in this study. The measurements show that the APMPA could achieve excellent jet-to-jet uniformity both in time and in space. This design may remove the structure limitation of the microplasma array and have a beneficial effect on various applications.