UV-curable PDMS-containing PU system for hydrophobic textile surface treatment |
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| Authors: | Wei-Hung Chen Po-Cheng Chen Shih-Chieh Wang Jen-Taut Yeh Chi-Yuan Huang Kan-Nan Chen |
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| Affiliation: | (1) Department of Chemistry, Nano-tech Research Center, Tamkang University, Tamsui, Taiwan;(2) Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan;(3) Faculty of Chemistry and Material Science, Hubei University, Wuhan, China;(4) Department of Materials Engineering, Tatung University, Taipei, Taiwan |
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| Abstract: | Polydimethylsiloxane (PDMS) is a super-hydrophobic material with low surface energy. UV-curable PDMS-containing polyurethane
(PU) oligomer (UV-PDMS-PU), having a PDMS moiety is designed for textile (PET and Nylon) surface treatment with a long lasting
hydrophobic property. UV-PDMS-PU was prepared by an addition of 2-hydroxyethyl methacrylate (2-HEMA) to NCO-terminated PDMS-containing
PU pre-polymer (NCO-PDMS-PU). NCO-PDMS-PU was obtained from an addition reaction of alkyl hydroxyl-terminated PDMS with an
excess amount of isophorone diisocyanate (IPDI). UV-PDMS-PU system consisted of 1% (w/w) photo-initiator that was coated either on glass plate or textile and then cured by UV-radiation. The UV-cured PDMS-containing
PU films were evaluated by the measurements of thermal and physical properties. The hydrophobic characters and silicone content
were remained on textile surface after water washing cycles, which indicating that UV-curing process can help the PDMS moiety
to anchor onto textile fibers. |
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| Keywords: | PDMS UV-curable PU Textile Coating |
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