Fabrication of superhydrophobic, antibacterial, and ultraviolet-blocking cotton fabric

被引:45
作者
Shateri-Khalilabad, Mohammad [1 ]
Yazdanshenas, Mohammad E. [1 ]
机构
[1] Islamic Azad Univ, Dept Text Engn, Yazd Branch, Yazd, Iran
关键词
cotton; silver nanoparticles; multifunctional; superhydrophobic; antibacterial; ultraviolet protection; SILICA NANOPARTICLES; RECENT PROGRESS; SURFACES; TEXTILES;
D O I
10.1080/00405000.2012.761330
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
Inspired by the superhydrophobic behavior of lotus leaf, a simple coating method was developed which could facilitate bionic creation of superhydrophobic surfaces on cotton textiles with a new functional properties. Silver nanoparticles (AgNPs) with a high deposition density were formed on the surface of cotton fabric through an alkali pre-activation followed by in situ reduction of silver nitrate. The Ag-coated fabric was then reacted with octyltriethoxysilane (OTES) to form a low surface energy layer on the fiber surface. The fabrics were characterized by ultraviolet-visible reflectance spectrophotometry, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy, and X-ray diffractometry. Hydrophobicity properties were assessed by contact angle (CA) goniometry and shedding angle (SHA) technique. Antibacterial activity was measured against Staphylococcus aureus and Escherichia coli bacteria, and UV-blocking ability was measured using the AATCC method. SEM images showed the formation of AgNPs which were distributed uniformly on the fibers' surface with a high coating density. Superhydrophobicity property of the treated fabric was confirmed with the CA of 156 degrees and SHA of 8 degrees. High antibacterial activity was observed without the reduction of inhibition size after coating with the OTES. The fabric also showed excellent UV-blocking with the ultraviolet protection factor of 266.01.
引用
收藏
页码:861 / 869
页数:9
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