Robust UV-cured superhydrophobic cotton fabric surfaces with self-healing ability

Qiang, Siyu; Chen, Kunlin; Yin, Yunjie; Wang, Chaoxia

doi:10.1016/j.matdes.2016.11.099

Cited by 92 publications

(37 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A superhydrophobic surface, motivated by the lotus effect, has always been a research hot spot for latest decades. With a water contact angle higher than150° and a water sliding angle lower than 10°, a superhydrophobic surface has an amazing waterproof capability, self‐cleaning character, and antifouling properties . 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.…”

Section: Introductionmentioning

confidence: 99%

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

Abdelrahman

Khattab

2019

ChemistrySelect

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

Abdelrahman

Khattab

2019

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…The steel coating for the shipbuilding industry and for chirurgical instruments is also an application that stands out to prevent marine algae films and fixing bacteria on instruments in contact with body fluids 8 . Hydrophobic fabrics have also self-cleaning properties, which can be applied to upholstery, usual clothes, mattresses, and for fabric used for water sports clothes, which can favor the cleaning process, with low humidity, sweat absorption and reduced friction 9,10 . The applications are diverse, particularly highlighting their use in automobile and aircraft paints and varnishes, pipe coating, hydrophobic fabrics and ophthalmic lenses 11,12 , oil spill clean-up from water 13,14 .…”

Section: Introductionmentioning

confidence: 99%

Sol-gel processed Superhydrophobic Plastic Surfaces Modified with Perfluorooctyltriethoxysilane (POTS)

2019

View full text Add to dashboard Cite

Researches about nanomaterials related to properties such as superhydrophobicity, self-cleaning, corrosion and scratching resistance can be directly related to the materials' wettability. This characteristic is quantified by the contact angle made between the surface and a water droplet, in which angles above 90 degrees are considered to be hydrophobic and those above 150 degrees, superhydrophobic. The focus of this work was the development of a superhydrophobic self-cleaning surface, using silica nanoparticles with a particle diameter around 400 nm to 800 nm (produced via sol-gel, referring to the classic Stöber method) functionalized with perfluorooctyltriethoxysilane (POTS) on a polymeric substrate polymethyl methacrylate (PMMA). Four different surface treatment conditions were analyzed: untreated, treated with non-functionalized silica nanoparticles, treated only with POTS and treated with silica nanoparticles functionalized with POTS. For this last condition, a static water contact angle of (150.0 ± 0.44) degrees and a dynamic water contact angle of (7.5 ± 0.38) degrees were obtained, which is a typical value of a superhydrophobic surface. However, the surface treated with POTS alone had a contact angle of 115 degrees. The high contact angle value was due to the low surface energy obtained, which was of (1.45 ± 0.02) dyn/cm. The modified superhydrophobic surface revealed a superior self-cleaning performance by freely rolling spherical water drops on the non-wettable solid surface. The stability of the modified surface has been proven by water jet impact.

show abstract

“…Superhydrophobic surfaces combining water contact angles higher than 150º and low 36 contact angle hysteresis have attracted extensive interest from both an economic and an 37 academic perspective [1][2][3]. High water repellency properties can ensure further developments 38 in many advanced materials with broad potential application [1,4], such as self-cleaning 39 surfaces [5-7], anti-corrosive coatings [8][9][10][11], drag reduction [12][13][14], or microfluidic devices [15]. 40 It is now well established that a combination of low-surface-energy material and hierarchical 41 micro/nanoscopic structure is a key feature to fabricate superhydrophobic surfaces [16,17].…”

Section: Introduction 35mentioning

confidence: 99%

“…This in spite of the fact that photopolymerization is 58 considered today as one of the most eco-efficient organic coating technologies [36]. The few 59 studies reporting a light-driven route to superhydrophobic coatings involved volatile organic 60 solvents either to ensure deposition [37,38] or to induce roughness by phase separation [39] 61 or simple evaporation [40]. In addition, their green credentials were undermined by the use of 62 ultraviolet (UV) radiation and perfluorinated chemicals, both having potential health effects.…”

Section: Introduction 35mentioning

confidence: 99%