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Hydrophilic UV-curable PU resins for PET micro-fiber applications

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Abstract

Hydrophilic UV-curable PU oligomers (UV-PU) were prepared by mixing either the toluene diisocyanates (TDI) with polyethylene glycol-1000, or the isophorone diisocyanate (IPDI) with polypropylene glycol-1000 and dimethylol propanic acid (DMPA), to produce the desired carboxylic acid bearing or non-ionic PU oligmer (NCO-PU), separately. The 2-hydroxyethyl methacrylate (HEMA) was then added into the NCO-PU oligomer to form acrylate-terminated (UV-curable) PU oligomer (UV-PU). The reactive diluents, such as 1,6-hexanediol diacrylate (HDDA), trimethylolpropane tricarylate (TMPTA) and others were used to adjust the viscosity of UV-PU and to control the concentration of acrylic group. The hydrophilic UV-curable PU system was formulated and applied on PET micro-fiber and then cured by an UV-radiation at ambient temperature. The physical, thermal, and mechanical properties, in particular, the hydrophilic properties of UV-curable PU treated PET micro-fibers will be discussed.

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Acknowledgement

One of the authors (K.-N.C.) is indebted to National Science Council of Taiwan, Republic of China for the financial supports.

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Authors and Affiliations

  1. Department of Chemistry, Nano-tech Research Center, Tamkang University, Tamsui, Taiwan

    Wei-Hung Chen, Po-Cheng Chen, Ping-Shin Chen, Shih-Chieh Wang & Kan-Nan Chen

  2. Faculty of Chemistry and Material Science, Hubei University, Wuhan, China

    Jen-Taut Yeh

  3. Department of Materials and Fiber, Nanya Institute of Technology, Chungli, Taiwan

    Jen-Taut Yeh

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  1. Wei-Hung Chen
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  2. Po-Cheng Chen
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  3. Ping-Shin Chen
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  4. Shih-Chieh Wang
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  5. Jen-Taut Yeh
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  6. Kan-Nan Chen
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Correspondence to Kan-Nan Chen.

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Chen, WH., Chen, PC., Chen, PS. et al. Hydrophilic UV-curable PU resins for PET micro-fiber applications. J Polym Res 16, 329–339 (2009). https://doi.org/10.1007/s10965-008-9233-z

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