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Coatings 2017, 7(8), 117; https://doi.org/10.3390/coatings7080117

Preparation and Characterization of Fluorinated Hydrophobic UV-Crosslinkable Thiol-Ene Polyurethane Coatings

1
School of Chemistry and Biological Engineering, Nanjing Normal University Taizhou College, Taizhou 225300, China
2
School of Medicine and Chemical Engineering and Technology, Taizhou University, 93 Jichuan Road, Taizhou 225300, China
3
School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
*
Author to whom correspondence should be addressed.
Received: 29 June 2017 / Revised: 1 August 2017 / Accepted: 3 August 2017 / Published: 6 August 2017
(This article belongs to the Special Issue Selected Papers from PCM 2017 (Coatings and Its Application))
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Abstract

The polyurethane prepolymer terminated with a double bond was synthesized using isophorone diisocyanate (IPDI), hydroxyl terminated polybutadiene (HTPB), 1,4-butanediol (BDO), and 2-hydroxyethyl acrylate (HEA). Then, a series of innovative UV-curable polyurethane coatings were prepared by blending ene-terminated polyurethane, fluoroacrylate monomer, and multifunctional thiol crosslinker upon UV exposure. The incorporation of fluoroacrylate monomer and multifunctional thiols into polyurethane coatings significantly enhanced the hydrophobic property, mechanical property, pencil hardness, and glossiness of the polyurethane coatings. This method of preparing UV crosslinkable, hydrophobic polyurethane coatings based on thiol-ene chemistry exhibited numerous advantages over other UV photocuring systems. View Full-Text
Keywords: polyurethane; fluorine-containing; UV-crosslinkable polyurethane; fluorine-containing; UV-crosslinkable
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Xia, W.; Zhu, N.; Hou, R.; Zhong, W.; Chen, M. Preparation and Characterization of Fluorinated Hydrophobic UV-Crosslinkable Thiol-Ene Polyurethane Coatings. Coatings 2017, 7, 117.

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