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Synthesis and Characterization of Nonionic Waterborne Polyurethane and Application to Wool Fabric Finishing

  • Organic Materials
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Abstract

A nonionic waterborne polyurethane(WPU) was synthesized by the self-emulsification method using polyether diol (N220), isophorone diisocyanate (IPDI), trimethylolpropane poly (ethylene glycol monomethyl ether) (N120), 1,4-butanediol (BDO) and trimethylolpropane (TMP) as the main materials. The effects of the NCO/OH ratio on the emulsion and film properties of NWPU were explored. The experimental results show that the NWPU prepared at an NCO/OH ratio of 1.1 has good emulsion stability and easy film formation, and the resultant film was elastic, soft, and transparent. The sample was used for wool finishing and the application performance was evaluated. When the NWPU dosage reached 40 g·L−1, the fabric area felt shrinkage rate reduced from 8.97% to 4.75%, the pilling rating raised from grade 2–3 to grade 4, and the whiteness value only decreased by 3.87%.

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Authors and Affiliations

  1. School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China

    Yingting Yin  (殷映婷), Mao Feng, Jinbo Yao  (姚金波) & Jiarong Niu  (牛家嵘)

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  1. Yingting Yin  (殷映婷)
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  2. Mao Feng
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  3. Jinbo Yao  (姚金波)
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  4. Jiarong Niu  (牛家嵘)
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Corresponding authors

Correspondence to Jinbo Yao  (姚金波) or Jiarong Niu  (牛家嵘).

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All authors declare that there are no competing interests.

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Yin, Y., Feng, M., Yao, J. et al. Synthesis and Characterization of Nonionic Waterborne Polyurethane and Application to Wool Fabric Finishing. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 39, 497–505 (2024). https://doi.org/10.1007/s11595-024-2905-7

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  • DOI: https://doi.org/10.1007/s11595-024-2905-7

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