Formability of ultra-thin plasma-polymer films deposited on metal sheet: mesoscopic and nanoscopic aspects of defect formation

2003 ◽  
Vol 795 ◽  
Author(s):  
B. Baumert ◽  
M. Stratmann ◽  
M. Rohwerder
Keyword(s):  
Polymer Films ◽  
Automotive Industry ◽  
Steel Sheet ◽  
Defect Formation ◽  
Metal Sheet ◽  
Plasma Polymer ◽  
Coated Steel ◽  
Plasma Polymers ◽  
Coated Metal ◽  
Thin Plasma

Forming of pre-coated metal sheet becomes of increasing importance in various fields of industrial application. For instance, the trend in automotive industry goes for ready coated steel sheet that can be formed and cut without loss of performance. This so called “finish first, fabricate later” concept increases the value of the steel sheet supplied by the steel industry and releases the automotive industry from the burden of the coating process. Consequently, studies on the effect of forming on the performance of corrosion protective coating systems adhering to metals sheet are carried out in order to determine the forming limiting curves for existing coatings [1]. New coating systems are sought in order to improve the formability of coating/metal sheet composites. As a very promising step into this direction, in the recent years ultra-thin plasma-polymer films have emerged as candidates for substituting phosphatation and the environmentally critical chromatation as pre-treatments for steel sheet. These Si-containing plasma polymers provide good corrosion protection properties to steel as well as to zinc-coated steel [2–3].

Combination of zinc alloy coating with thin plasma polymer films for novel corrosion protective systems on coated steel

2011 ◽  
Vol 205 ◽  
pp. S137-S140 ◽  
Author(s):  
J. Schindhelm ◽  
M. Giza ◽  
K. Nikolov ◽  
N. Weiher ◽  
B. Schuhmacher ◽  
...  
Keyword(s):  
Polymer Films ◽  
Alloy Coating ◽  
Plasma Polymer ◽  
Zinc Alloy ◽  
Coated Steel ◽  
Protective Systems ◽  
Thin Plasma

scholarly journals Mechanical properties of plasma polymer films: a review

2021 ◽  
Vol 3 (6) ◽  
Author(s):  
Jamerson Carneiro de Oliveira ◽  
Aissam Airoudj ◽  
Philippe Kunemann ◽  
Florence Bally-Le Gall ◽  
Vincent Roucoules
Keyword(s):  
Mechanical Properties ◽  
Polymer Films ◽  
Chemical Properties ◽  
Plasma Polymer ◽  
List Type ◽  
Physical And Chemical Properties ◽  
Plasma Polymers ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract Plasma polymers are micro-, or more commonly, nano-sized coatings that can be deposited on a variety of substrates through different approaches. The versatility of these polymers is incremented by the possibility to use other precursors than conventional polymerization reactions and by potential changes in the polymerization mechanisms according to the intrinsic physical and chemical properties of the plasma. That flexibility offers a fruitful ground to a great range of scientific and engineering fields, but it also brings many challenges for universalization of empirical observations. In this review, the use of different precursors, substrates and changes in plasma external parameters were evaluated as common, but not necessarily ideal nor exhaustive, variables for the analysis of mechanical properties of plasma polymer films. The commonly reported trends are complemented with the exceptions, and a variety of hypothesis drawn by the empirical observations are shown. The techniques and methods used for determining the mechanical properties of plasma polymers, the effect of post-treatments on them and some applications are evaluated. Finally, a general conclusion highlighting the challenges of the field is provided. Article highlights The mechanical properties of plasma polymers are evaluated as a function of selected parameters. The techniques of characterization of mechanical properties of plasma polymers are summarized. A discussion of future and current demands for the analysis of mechanical properties of plasma polymers is done.

Modification of Organic Coatings with Thin Plasma Polymer Films. Influence on the Barrier Properties

2006 ◽  
Vol 514-516 ◽  
pp. 1401-1408 ◽  
Author(s):  
Ricardo Serra ◽  
Mikhail L. Zheludkevich ◽  
Guido Grundmeier ◽  
Mário G.S. Ferreira
Keyword(s):  
Plasma Treatment ◽  
Polymer Films ◽  
Electrochemical Impedance ◽  
Barrier Properties ◽  
Organic Coatings ◽  
Plasma Polymer ◽  
Rf Plasmas ◽  
Final Layer ◽  
Negative Effect ◽  
Thin Plasma

Deposition of thin plasma polymer films as final layer on organic coatings can provide one promising solution to tailor the surface properties offering third functionality and increased mechanical properties. The present work is dedicated to the study of the barrier properties of polyurethane coil coatings modified by different plasma polymerization processes. Microwave (MW) and radio frequency (RF) plasmas were used to deposit thin films with different composition from various precursor mixtures. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) were used to reveal the evolution of the plasma treated coil coatings during weathering tests. Electrochemical impedance spectroscopy (EIS) was employed to study the barrier properties of the coatings. The results show a degradation effect of the plasma treatment on the barrier properties of the coil coatings especially in the case of the oxygen-containing plasmas. However addition of a fluorinecontaining component to the precursor mixture leads to the elimination of the negative effect of the plasma treatment on the barrier properties of the coil coatings. The fluorine-containing films exhibit higher weathering stability in comparison with the fluorine-free ones.

scholarly journals Synthesis of highly functionalised plasma polymer films from protonated precursor ions via the plasma α–γ transition

2017 ◽  
Vol 19 (7) ◽  
pp. 5637-5646 ◽  
Author(s):  
Solmaz Saboohi ◽  
Bryan R. Coad ◽  
Hans J. Griesser ◽  
Andrew Michelmore ◽  
Robert D. Short
Keyword(s):  
Polymer Films ◽  
Functional Group ◽  
Plasma Polymer ◽  
Plasma Polymers ◽  
Precursor Ions

Functional group retention in plasma polymers is maximised by tuning the pressure/power to the α to γ transition.

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