Fabrication of superhydrophobic coatings on cotton fabric using ultrasound-assisted in-situ growth method

Pan, Guangming; Xiao, Xinyan; Yu, Nanlin; Ye, Zhihao

doi:10.1016/j.porgcoat.2018.09.026

Cited by 32 publications

(17 citation statements)

References 48 publications

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“…Based on the superhydrophobic structure theory [5][6][7] that the micro-nano hierarchical structure with low surface energy on a surface can effectively retain air at the bottom of the microstructure, and water droplets can exist on nanostructure in a spherical shape, thereby reducing the contact area and adhesion with the surface, obtaining superhydrophobic and self-cleaning effect. So far, numerous methods and techniques, such as sol-gel processing, [8][9][10][11][12][13][14] polymer grafting, 15,16 self-assembly, 17,18 chemical etching, in-situ growth method, 6,19 dip-coating, 20,21 hydrothermal methods, 13,[22][23][24][25] plasma treatment, [26][27][28][29] electrospinning, 30,31 and so on, [32][33][34] have been adopted in constructing hierarchical roughness structure with low surface energy on fabric. Unfortunately, the preparation process of these methods is always divided into two or three steps, namely, the fabric is first coated with nanoparticles to build a rough surface, and then low surface energy modification is performed, or other multiple steps are executed in sequence.…”

Section: Introductionmentioning

confidence: 99%

One-step hydrothermal method to prepare superhydrophobic cotton fabric with antibacterial properties

Sheng

Zhang

2021

Journal of Engineered Fibers and Fabrics

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Superhydrophobic antibacterial cotton fabric can be widely applied in outdoor clothing, hospital bedding, and other fields. However, the existing manufacturing methods are difficult or complicated. Herein, a facile and straightforward fabrication strategy is proposed via a one-step hydrothermal method to construct micro-nanometer hierarchical structure with low surface energy on fabric. In an appropriate amount, 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (PFOTES) and tetrabutyl titanate (TBT) were mixed in a hydrothermal reactor to generate titanium dioxide. Meanwhile, the PFOTES agent was hydrolyzed and condensed, bonded with titanium dioxide, and finally grafted onto the fiber together. Morphology and elements results demonstrated that the fabric surface was covered by the TiO2 nanoparticles with superhydrophobic coating. The chemical bonds of Si-O-Ti, Ti-O-C, and Ti-O-Ti revealed the structural relationship between TiO2 with PFOTES and cotton fibers. The water contact angle of the fabric obtained can reach to 168°. The fluorinated-TiO2 cotton fabric showed high antibacterial properties in visible light against E. coli and S. aureus. This simple method of preparing superhydrophobic and antibacterial fabric exhibited great potential in the field of functional textiles such as outdoor garments and hospital-related applications.

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Section: Introductionmentioning

confidence: 99%

One-step hydrothermal method to prepare superhydrophobic cotton fabric with antibacterial properties

Sheng

Zhang

2021

Journal of Engineered Fibers and Fabrics

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“…Fabricating a superhydrophobic surface on cotton fabrics has been extensively studied, which has been demonstrated as an effective method in the functionalization of cotton fabrics for self-cleaning [4,5] and oil/water separation [6][7][8][9][10]. The superhydrophobic surface on cotton fabrics could be realized by various techniques, including the CVD (chemical vapor deposition) method [11][12][13], sol-gel process [3,14,15], solution immersion [16,17], spray deposition [18][19][20], and graft polymerization [1,12,[21][22][23][24][25]. Two essential factors for the fabrication of a superhydrophobic surface on cotton fabrics are (i) rough surface and (ii) low surface energy.…”

Section: Introductionmentioning

confidence: 99%

“…Two essential factors for the fabrication of a superhydrophobic surface on cotton fabrics are (i) rough surface and (ii) low surface energy. To build a rough surface on cotton fabrics, inorganic nanoparticles such as ZnO [26], TiO 2 [6,7,15,27], and SiO 2 [2,14,28] were employed. Since the inorganic nanoparticles were generally very hydrophilic, a further hydrophobic modification process should be carried out to lower the surface energy of the resultant rough surface.…”

Section: Introductionmentioning

confidence: 99%

Highly Hydrophobic Cotton Fabrics Modified by Poly(methylhydrogen)siloxane and Fluorinated Olefin: Characterization and Applications

Lin

Liao

et al. 2020

Polymers

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Highly hydrophobic cotton fabrics were obtained with poly(methylhydrogen)siloxane (PMHS) and a further fluorinated olefin modification. The chemical structures and microstructures of PMHS-modified cotton fabrics were characterized, and application of the resultant cotton fabrics in stain resistance and oil–water separation was demonstrated. PMHS chains with very low surface energy were grafted onto cotton fabric by the dehydrogenation reaction between –Si–H of PMHS and –OH groups of cotton fabric at room temperature. The water contact angle of PMHS-modified cotton fabric was 141.7°, which provided the modified cotton fabric with good stain resistance to waterborne pollutants. The separation efficiency of diesel from water was higher than 92% for 20 repeatable separation cycles. A further improvement in stain resistance to oil was also demonstrated by a further addition reaction of 1H,1H,2H-perfluoro-1-decene with PMHS-modified cotton fabric.

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“…Both of nano‐ and micro‐hierarchical surface roughness and low surface energy are recognized as strong heuristic to accomplish superhydrophobic property, which is a key role to produce waterproof fabrics. Nonetheless, low surface energy modifiers are commonly fluorine‐based materials which are highly toxic and expensive, which led to limiting its wider applications …”

Section: Introductionmentioning

confidence: 99%

Development of One‐Step Water‐Repellent and Flame‐Retardant Finishes for Cotton

Abdelrahman

Khattab

2019

ChemistrySelect

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Pyrovatex is a well-known commercial flame-retardant which is commonly applied for cotton fibers. Unfortunately, Pyrovatex has the concern of discharging toxic formaldehyde, and additionally it necessitates formaldehyde-based cross-linking agents to enhance the flame retardant character and durability. Thus, formaldehyde level is considerably increased in the treated cotton fabrics. Herein, we develop a simple approach toward superhydrophobic and flame-retardant coating for cotton fabrics. We apply one-bath pad-dry-cure technique in absence of formaldehyde which is usually applied as a cross-linker for the application and fixation of the Pyrovatex flame-retardant. Room temperature vulcanized (RTV) silicone was employed as a formaldehyde free cross-linking agent which allowed using Pyrovatex at lower concentration compared to commercial cross-linkers. The flame retardancy of the fabric was improved as a result of the higher bonding of Pyrovatex with both cotton fibers and RTV which in turn was bonded to cotton fibers too. Only 150 g/L of Pyrovatex with RTV silicone introduced much better flame retardant efficiency than applying 450-500 g/L of Pyrovatex ACS alone. Furthermore, RTV silicone further improved the water-repellent effect on the fabric surface. Washing properties of the treated cotton fabrics proved durability. The surface morphology and comfort properties of the treated cotton was explored.[a] Dr.

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Fabrication of superhydrophobic coatings on cotton fabric using ultrasound-assisted in-situ growth method

Cited by 32 publications

References 48 publications

One-step hydrothermal method to prepare superhydrophobic cotton fabric with antibacterial properties

One-step hydrothermal method to prepare superhydrophobic cotton fabric with antibacterial properties

Highly Hydrophobic Cotton Fabrics Modified by Poly(methylhydrogen)siloxane and Fluorinated Olefin: Characterization and Applications

Development of One‐Step Water‐Repellent and Flame‐Retardant Finishes for Cotton

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