Robust fluorine-free colorful superhydrophobic PDMS/NH2-MIL-125(Ti)@cotton fabrics for improved ultraviolet resistance and efficient oil–water separation
Robust fluorine-free colorful superhydrophobic PDMS/NH2-MIL-125(Ti)@cotton fabrics for improved ultraviolet resistance and efficient oil–water separation
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DOI：
10.1007/s10570-019-02707-3
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发表时间：
2019-11
期刊：
影响因子：
5.7
通讯作者：
Yingying Yang;Wei Huang;Zengpei Guo;Shiyu Zhang;Feng Wu;Jingjing Huang;Hongjun Yang;Yingshan Zhou-Yi
中科院分区：
文献类型：
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作者：
Yingying Yang;Wei Huang;Zengpei Guo;Shiyu Zhang;Feng Wu;Jingjing Huang;Hongjun Yang;Yingshan Zhou-Yi
摘要通过在棉纤维上原位生长纳米NH 2-MIL-125（Ti）（Ti-MOF），并在室温下涂覆聚二甲基硅氧烷（PDMS），制备了具有抗紫外性能的超疏水棉织物。Ti-MOFs纳米粒子和PDMS的协同作用是获得具有抗紫外性能的超疏水涂层的关键和必要条件。采用K/S值、扫描电镜、X射线光电子能谱、能谱和水接触角等测试手段对织物的表面结构、化学组成和超疏水性能进行了表征。结果表明，所制备的棉织物不仅具有良好的超疏水性能（水接触角为154.7 ± 0.7°，滑动角为3.6°），而且具有良好的抗紫外性能。考察了其油水分离性能、紫外防护稳定性和超疏水性。所制备的PDMS/Ti-MOFs@棉织物的超疏水性、抗紫外线性能和K/S值在300次磨损和5次洗涤后保持稳定。这种简易的合成技术为多功能织物的规模化生产提供了一种简单的方法。
AbstractSuperhydrophobic cotton fabrics with improved ultraviolet resistance were prepared via in situ growing NH2-MIL-125(Ti)(Ti-MOF) nanoparticles on cotton fibers and subsequently coating with polydimethylsiloxane (PDMS) under room temperature. The synergetic effect of Ti-MOFs nanoparticles and PDMS was critical and essential for obtaining a superhydrophobic coating with anti-UV property. The surface microstructure, chemical composition, and superhydrophobic property of the as-prepared fabrics were characterized by K/S value, scanning electron microscopy, X-ray photoelectron spectroscopy, energy dispersive spectroscopy, and water contact angle (WCA) measurements. The as-prepared cotton fabrics not merely exhibited desirable superhydrophobic property with a water contact angle (WCA) of 154.7 ± 0.7° and a sliding angle of 3.6°, but also displayed the considerable UV resistance. The oil–water separation, stability of UV protection and superhydrophobicity were also investigated. The superhydrophobicity, anti-ultraviolet property, and K/S value of as-prepared PDMS/Ti-MOFs@cotton fabrics were stable after 300 cycles of abrasion and 5 cycles of washing. The facile synthesis technique provided a simple method for scalable construction of multifunctional fabrics.Graphic abstract