Please use this identifier to cite or link to this item: doi:10.22028/D291-33562
Title: Cross-Linking Strategies for Fluorine-Containing Polymer Coatings for Durable Resistant Water- and Oil-Repellency
Author(s): Kredel, Julia
Schmitt, Deborah
Schäfer, Jan-Lukas
Biesalski, Markus
Gallei, Markus
Language: English
Title: Polymers
Volume: 13
Issue: 5
Publisher/Platform: MDPI
Year of Publication: 2021
Free key words: cross-linking reactions
emulsion polymerization
fluorine-containing polymers
oil- and water repellency
DDC notations: 540 Chemistry
Publikation type: Journal Article
Abstract: Functional coatings for application on surfaces are of growing interest. Especially in the textile industry, durable water and oil repellent finishes are of special demand for implementation in the outdoor sector, but also as safety-protection clothes against oil or chemicals. Such oil and chemical repellent textiles can be achieved by coating surfaces with fluoropolymers. As many concerns exist regarding (per)fluorinated polymers due to their high persistence and accumulation capacity in the environment, a durable and resistant coating is essential also during the washing processes of textiles. Within the present study, different strategies are examined for a durable resistant cross-linking of a novel fluoropolymer on the surface of fibers. The monomer 2-((1,1,2- trifluoro-2-(perfluoropropoxy)ethyl)thio)ethyl acrylate, whose fluorinated side-chain is degradable by treatment with ozone, was used for this purpose. The polymers were synthesized via free radical polymerization in emulsion, and different amounts of cross-linking reagents were copolymerized. The final polymer dispersions were applied to cellulose fibers and the cross-linking was induced thermally or by irradiation with UV-light. In order to investigate the cross-linking efficiency, tensile elongation studies were carried out. In addition, multiple washing processes of the fibers were performed and the polymer loss during washing, as well as the effects on oil and water repellency were investigated. The cross-linking strategy paves the way to a durable fluoropolymer-based functional coating and the polymers are expected to provide a promising and sustainable alternative to functional coatings.
DOI of the first publication: 10.3390/polym13050723
Link to this record: urn:nbn:de:bsz:291--ds-335621
ISSN: 2073-4360
Date of registration: 15-Mar-2021
Description of the related object: Supplementary Materials
Related object:
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Chemie
Professorship: NT - Prof. Dr. Markus Gallei
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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