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dc.contributor.authorHuang, Shuaishuaien
dc.date.accessioned2019-01-31T19:32:01Z
dc.date.available2019-01-31T19:32:01Z
dc.identifier.urihttp://hdl.handle.net/1974/25959
dc.description.abstractDurable and transparent anti-smudge coatings that repel both water- and oil-borne contaminants have many potential applications. Perfluorinated moieties were commonly used in the past to prepare water- and oil-repellant coatings, however these species are expensive and of significant environmental concern. Further, organic solvents have been traditionally used to formulate such coatings, however such solvent-based coating formulations emit volatile organic compounds and are a safety hazard. First reported in this thesis is the development of transparent and durable water-borne anti-smudge polyurethane coatings. These coatings are obtained by casting micellar solutions of a blocked polyisocyanate dispersed in water using a graft copolymer, polyol-g-PDMS, where the polyol backbone is water soluble and PDMS denotes poly(dimethyl siloxane). On these coatings, small 5-µL droplets of various liquids such as cooking and engine oils have no problem to glide cleanly off at substrate tilting angles < 5 °. Artificial fingerprint liquids, inks, and paints readily shrink into tiny droplets after application on them and their residues after solvent evaporation are readily wiped off with a tissue. Such waterborne coating formulations were also used to coat textile fibers, where they imparted superhydrophobic properties to the textiles. For both systems, the challenges associated with switching from a solvent-based to a water-based formulation for the targeted coatings will be discussed. The greenness of the coating formation process will also be highlighted for its practical value. In the future work, poorer water sliding behavior of NP-GLIDE coating (coatings bear nano-pools of grafted lubricating ingredient for dewetting enablement) will be improved with in-situ formation of free photo-cleavage PDMS chains. Also, the effect of chain length of PDMS to anti-smudge properties will be systematically investigated. Further, the robustness of these coatings will be tested.en
dc.language.isoengen
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectPolyurethanesen
dc.subjectSuperhydrophobic fabricen
dc.subjectAnti-smudgeen
dc.subjectWater-based coatingsen
dc.titlePDMS-Containing Polyurethane Forumulation for Anti-Smudge Coatings and Superhydrophobic Textilesen
dc.typethesisen
dc.description.degreePhDen
dc.contributor.supervisorLiu, Guojunen
dc.contributor.departmentChemistryen
dc.degree.grantorQueen's University at Kingstonen


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