Hydrophobisation of electrospun nanofiber membranes by plasma deposited CF coating

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10436014" target="_blank" >RIV/00216208:11320/21:10436014 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/21:43896326
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WQirWcHr_4" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WQirWcHr_4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2021.101333" target="_blank" >10.1016/j.surfin.2021.101333</a>

Result language
angličtina
Original language name
Hydrophobisation of electrospun nanofiber membranes by plasma deposited CF coating
Original language description
Electrospun nanofiber membranes for filtration and medical applications are still under rapid development. The common example of membranes - polyamide 6 (PA6) with hydrophilic properties was selected for the conversion to hydrophobic membranes. The fiber diameter in the membrane is about 100 nm. To reach the hydrophobic properties, the hydrophilic PA6 membrane was plasma coated by CF film from Argon/C4F8 = 2:1 gas mixture in radio frequency (RF) 20 W plasma in total pressure about 0.7 Pa for 5 min. The membranes are by this process coated deeply inside the structure up to underlying spunbond substrate used for the membrane production as a collector substrate. The contact angle measured on CF functionalized membrane is about 120 degrees and it is higher than the contact angle measured on the reference flat CF coating on Si sample with same chemical bonding. Chemical structure was studied by XPS where identical CFx components were identified on flat samples and on the top of functionalized membrane. The zeta potential decreased significantly if PA6 membrane is functionalized by CF groups. The coating process did not damage the nanofibers in the membrane and the diameters of the fibers were not significantly increased.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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