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自修复光致变色聚氨酯复合织物的制备与性能

李含 郭阳 白松 吴焕岭 林玲 冒海燕

李含, 郭阳, 白松, 等. 自修复光致变色聚氨酯复合织物的制备与性能[J]. 复合材料学报, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004
引用本文: 李含, 郭阳, 白松, 等. 自修复光致变色聚氨酯复合织物的制备与性能[J]. 复合材料学报, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004
LI Han, GUO Yang, BAI Song, et al. Preparation and properties of self-healing photochromic polyurethane composite fabric[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004
Citation: LI Han, GUO Yang, BAI Song, et al. Preparation and properties of self-healing photochromic polyurethane composite fabric[J]. Acta Materiae Compositae Sinica, 2024, 41(8): 4189-4199. doi: 10.13801/j.cnki.fhclxb.20231214.004

自修复光致变色聚氨酯复合织物的制备与性能

doi: 10.13801/j.cnki.fhclxb.20231214.004
基金项目: 国家自然科学基金青年项目(52103067);江苏省自然科学基金项目(BK20191045)
详细信息
    通讯作者:

    冒海燕,博士,副教授,研究方向为刺激响应性聚氨酯的制备及应用 E-mail:maohaiyan@ycit.edu.cn

  • 中图分类号: TB332

Preparation and properties of self-healing photochromic polyurethane composite fabric

Funds: National Natural Science Foundation of China (52103067); Natural Science Foundation of Jiangsu Province (BK20191045)
  • 摘要: 为提高光致变色涂层织物耐用性能,采用光致变色微胶囊(PM)与两性离子聚氨酯(ZPU)制备PM/ZPU薄膜,并热压到棉织物上得到自修复光致变色PM/ZPU复合织物。对PM/ZPU复合织物的结构和形貌进行表征,并详细探讨了PM/ZPU复合织物的光致变色性能、自修复及回收利用能力。结果表明:经紫外光照射后,PM/ZPU复合织物的最大吸收波长由470 nm转移到530 nm,颜色由黄橙色变为红褐色,且具有良好的耐疲劳性能;基于两性离子的动态可逆性,PM/ZPU复合织物划痕可以在80℃下完全修复,断裂的复合织物在60℃下的粘合强度达到1.47 MPa,展现了优异的自修复性能;通过简单的溶解法可将废弃织物上的涂层进行回收并再利用,重新制备PM/ZPU复合织物依然具有良好的光致变色性能。

     

  • 图  1  (a) 两性离子聚氨酯(ZPU)的合成;(b) 光致变色微胶囊(PM)/ZPU复合织物的制备

    Figure  1.  (a) Synthesis of zwitterionic polyurethane (ZPU); (b) Preparation of photochromic microcapsules (PM)/ZPU composite fabric

    图  2  ZPU复合织物和PM/ZPU复合织物的红外图谱

    Figure  2.  FTIR spectra of ZPU and PM/ZPU composite fabrics

    图  3  复合织物的表面((a), (b))、截面((a'), (b')) SEM图像和复合织物的EDS图像(c)

    Figure  3.  SEM images of the surface ((a), (b)) and cross-sectional ((a'), (b')) for composite fabrics, and EDS image (c) of composite fabrics

    图  4  纯棉织物(a)、ZPU复合织物(b)、PM/ZPU复合织物(c)的接触角

    Figure  4.  Contact angle of pure cotton fabric (a), ZPU composite fabric (b), PM/ZPU composite fabric (c)

    图  5  PM/ZPU复合织物在室温(a)和90℃ (b)下的透气性

    Figure  5.  Permeability of PM/ZPU composite fabrics at room temperature (a) and 90℃ (b)

    图  6  (a)不同压力下PM/ZPU复合织物正反面的K/S值;(b)在最大吸收波长处的K/S

    Figure  6.  (a) K/S values of the front and back surfaces of PM/ZPU composite fabrics under different pressures; (b) K/S value at maximum absorption wavelength

    K—Absorption coefficient; S—Scattering coefficient

    图  7  (a) 复合织物随紫外光照射时间变化的K/S曲线;(b) 完全变色后复合织物随时间褪色的K/S曲线;(c) PM可逆光致变色机制

    Figure  7.  (a) K/S curves of PM/ZPU composite fabric with UV irradiation time; (b) K/S curves of composite fabric fading with time after complete discoloration; (c) Reversible photochromic mechanism of PM

    图  8  PM/ZPU复合织物的耐疲劳性

    Figure  8.  Fatigue resistance of PM/ZPU composite fabrics

    图  9  复合织物划痕在不同温度下的自修复情况及机制

    PU—Polyurethane

    Figure  9.  Self-healing process and mechanism of composite fabric under varied temperatures

    图  10  PM/ZPU复合织物断片自修复能力

    Figure  10.  Self-healing ability of PM/ZPU composite fabric fragments

    图  11  PM/ZPU复合织物的可回收性和再利用性

    Figure  11.  Recyclability and reusability of PM/ZPU composite fabrics

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出版历程
  • 收稿日期:  2023-10-24
  • 修回日期:  2023-11-25
  • 录用日期:  2023-12-01
  • 网络出版日期:  2023-12-15
  • 刊出日期:  2024-08-01

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