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http://dx.doi.org/10.9713/kcer.2016.54.3.387

Preparation of Water Repellent Polyurethane Coating Films Using Perfluoroalkyl Alcohol  

Kim, Nam Woo (Department of Chemical and Biochemical Engineering, Konyang University)
Ahn, Chi Young (Department of Chemical and Biochemical Engineering, Konyang University)
Song, Ki Chang (Department of Chemical and Biochemical Engineering, Konyang University)
Publication Information
Korean Chemical Engineering Research / v.54, no.3, 2016 , pp. 387-393 More about this Journal
Abstract
Fluorinated polyurethane coating solutions were synthesized from perfluoroalkyl alcohol, toluene diisocyanate, and polycarbonate diol as starting materials. Next, coating films were prepared by spin-coating the fluorinated polyurethane coating solutions on the PC substrates, followed by thermal curing at $120^{\circ}C$. The obtained fluorinated polyurethane coating films were characterized by FT-IR spectroscopy, UV-Vis spectrometer, contact angle tester and pencil hardness tester. Contact angle measurements of water on the coating films showed that the addition of perfluoroalkyl alcohol improved the water repellency and increased the contact angle from $81^{\circ}C$ to $111^{\circ}C$. However, the pencil hardness of coating films exhibited a constant grade of H, irrespective of the addition of perfluoroalkyl alcohol.
Keywords
Fluorinated polyurethane; Water Repellency; Contact Angle; Perfluoroalkyl alcohol; Coating Films;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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