Modification of silicon-polyurethane-based sol–gel coatings through diverse plasma technologies: investigation of impact on surface properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00135621" target="_blank" >RIV/00216224:14310/24:00135621 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05986c" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/nj/d3nj05986c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/D3NJ05986C" target="_blank" >10.1039/D3NJ05986C</a>

Result language

angličtina

Original language name

Modification of silicon-polyurethane-based sol–gel coatings through diverse plasma technologies: investigation of impact on surface properties

Original language description

Sol–gel coatings have many benefits in industrial applications, thanks to their simple low-temperature preparation processes and easy-to-alter dimensions. However, they often require curing through heating at elevated temperatures or UV radiation, which can increase manufacturing complexity and energy consumption. To overcome this challenge, we propose an alternative method for curing sol–gel coatings quickly and easily using various atmospheric pressure cold or hot plasma technologies, such as plasma jet, diffuse coplanar surface barrier discharge, and gliding arc technology. Our research involves preparing light-transparent sol–gel coatings on stainless-steel substrates via the spin-coating method, using a unique combination of commercially available organic precursors that could be used as water and corrosion-resistant protective paints. We analyse the efficiency of plasma curing by examining the morphological changes, water adhesion, and chemical changes induced by plasma treatment using a scanning electron microscope, contact angle measurement, X-ray photoelectron spectroscopy, nanoindentation, scratch testing, and Fourier transform infrared spectroscopy. According to these measurements, the choice of plasma technology can affect the modification of surface chemistry and water adhesion. The DCSBD plasma changes the surface the most; the layer becomes hydrophilic, not hydrophobic, as with the other curing methods. In addition, post-curing of the layers treated with agliding arc, plasma jet or hotplate can be seen over time. Post-curing is described by the reaction of Si–O–C to Si–O–Si. This reaction path can be easily measured with XPS and FTIR. This post-curing also affects the adhesion of the coating to the substrate. The adhesion improves for all samples, except for the DCSBD-treated sample. However, the coating hardness was increased by the plasma treatment in all samples.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

1369-9261

Volume of the periodical

48

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

5232-5246

UT code for WoS article

001175978000001

EID of the result in the Scopus database

2-s2.0-85187001551