Waterborne Cationic Fluorinated Polyurethane Modified by Perfluorinated Alkyl Long Chain

Abstract:

Waterborne cationic fluorinated polyurethane (WCFPU) was prepared by the reaction of isophorone isocyanate (IPDI), polyether polyol (PTMG1000), N-methyldiethanolamine (MDEA), trimethylol propane (TMP) and 2-(perfluorooctyl) ethyl alcohol (FEOH) and then the films of the WCFPU were prepared. Their structure, surface property, mechanical properties, thermal performance and chemical resistance of their membrane were characterized by fourier transform infared spectrometer (FT-IR), interfacial tension instrument (IT), contact angle (CA), thermogravimetry (TG) and spot test. The results revealed that WCFPU was endowed with good mechanical properties and low surface energy of its film. TG diagrams also revealed that the application range of product was enlarged. It was also found that the fluorinated polyurethane had outstanding chemical resistance.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 2116-2121
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.2116
• Online since: July 2011
• Authors: Xiao Wu Yang, Yi Ding Shen, Pei Zhi Li, Gang Hui Li
• Keywords: Cationic Fluorinated Polyurethane, Long Chain, Perfluorinated Alkyl, Waterborne Polyurethane (WPU)

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