THERMAL STABILITY OF SUPERHYDROPHILIC CARBON FILMS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00113414" target="_blank" >RIV/00216224:14310/18:00113414 - isvavai.cz</a>

Result on the web

<a href="https://www.nanocon.eu/en/" target="_blank" >https://www.nanocon.eu/en/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

THERMAL STABILITY OF SUPERHYDROPHILIC CARBON FILMS

Original language description

Plasma polymerisation in atmospheric pressure is an emerging method of creating highly hydrophilic surfaces, with water contact angles below 10 degrees. Unlike low-pressure plasma polymerisation, it is cheaper, faster and can be done inline, but requires larger amounts of precursor. Unlike plasma activation, the increase of wettability does not show an aging effect. In our experiments, we deposited hydrocarbon films from low concentration propane-butane in nitrogen plasma at atmospheric pressure on c-Si 2 cm x 3 cm large, 0.6 mm thick substrates from distance 0.1 mm. We used three different concentrations of propane-butane. Using thermal desorption spectroscopy, we have systematically analysed the thermal stability of all these films. The samples were slowly heated in high vacuum at constant speed to various temperatures, up to 1000 degrees C. Thermally desorbed gases from the sample were analysed using a mass spectrometer. The dependences of partial pressures on particle mass and temperature were rendered into colour maps. We have found that reactions begun to occur at temperatures about 100 degrees C, releasing hydrocarbon gases. Contact angle measurements have shown that the hydrocarbon films progressively lost their hydrophilic effect in temperatures from 100 degrees C to 300 degrees C. At temperatures around 850 degrees C, a strong reaction occurs, leading to a massive release of hydrocarbon gases, but the film itself remains on the substrate. Samples before and after annealing were analysed by means of common laboratory tests.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

21000 - Nano-technology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Article name in the collection

9TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2017)

ISBN

9788087294819

ISSN

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e-ISSN

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Number of pages

6

Pages from-to

260-265

Publisher name

TANGER LTD

Place of publication

SLEZSKA

Event location

Brno, CZECH REPUBLIC

Event date

Oct 18, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000452823300043