Laundering Durability of Superhydrophobic Cotton Fabric

Deng, Bo; Cai, Ren; Yu, Yang; Jiang, Haiqing; Wang, Chunlei; Li, Jiang; Li, Linfan; Yu, Miao; Li, Jingye; Xie, Leidong; Huang, Qing; Chen, Fan

doi:10.1002/adma.201002614

Cited by 289 publications

(206 citation statements)

References 24 publications

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“…[1][2][3][4][5][6][7] These surfaces, which possess the virtue of having a very large water contact angle and exhibiting little sticking to water drops, have numerous applications in self-cleaning paints and windows, [ 8 ] non-wetting fabrics, [9][10][11][12] anti-fogging, [ 13 ] anti-icing, [ 14 ] buoyancy [ 15 ] and fl ow enhancement [ 16 ] to name a few. However, the practicality of non-wetting surfaces is hampered by the poor mechanical stability of the microscopic surface topography that is essential for very large contact angles.…”

Section: Introductionmentioning

confidence: 99%

Mechanically Durable Superhydrophobic Surfaces

et al. 2010

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Development of durable non-wetting surfaces is hindered by the fragility of the microscopic roughness features that are necessary for superhydrophobicity. Mechanical wear on superhydrophobic surfaces usually shows as increased sticking of water, leading to loss of non-wettability. Increased wear resistance has been demonstrated by exploiting hierarchical roughness where nanoscale roughness is protected to some degree by large scale features, and avoiding the use of hydrophilic bulk materials is shown to help prevent the formation of hydrophilic defects as a result of wear. Additionally, self-healing hydrophobic layers and roughness patterns have been suggested and demonstrated. Nevertheless, mechanical contact not only causes damage to roughness patterns but also surface contamination, which shortens the lifetime of superhydrophobic surfaces in spite of the self-cleaning effect. The use of photocatalytic effect and reduced electric resistance have been suggested to prevent the accumulation of surface contaminants. Resistance to organic contaminants is more challenging, however, oleophobic surface patterns which are non-wetting to organic liquids have been demonstrated. While the fragility of superhydrophobic surfaces currently limits their applicability, development of mechanically durable surfaces will enable a wide range of new applications in the future.

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Section: Introductionmentioning

confidence: 99%

Mechanically Durable Superhydrophobic Surfaces

et al. 2010

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“…Perhaps most famous is the discovery of superhydrophobicity mimicking 2 the nano-microscopic surface morphology of the natural-leaf templates, such as Strelitzia reginae, 3,4 taro, 5 lotus and rice leaves. 6,7 Superhydrophobic surfaces have been utilized in a myriad of technological applications including anti-wetting 8,9 bubble bursting, 10 organic-proong, 11 directional transportation, 12 antifogging, 13 superhydrophobicitysuperhydrophilicity transition, 14,15 self-cleaning, [16][17][18] selfrepairing interfaces.…”

mentioning

confidence: 99%

Plant leaves as templates for soft lithography

Guijt

Silina

et al. 2016

RSC Adv.

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We report a simple fast, practical and effective method for the replication of the complex venation patterns of natural leaves into PDMS with accuracy down to a lateral size of 500 nm. Optimising the amount of crosslinker enabled the replication and sealing of the microvascular structures to yield enclosed microfluidic networks.The use of plant leaves as templates for soft lithography was demonstrated across over ten species and included reticulate, arcuate, pinnate, parallel and palmate venation patterns. SEM imaging revealed replication of the plants microscopic and submicroscopic topography into the PDMS structures, making this method especially attractive for mimicking biological structures for in vitro assays. Flow analysis revealed that the autonomous liquid transport velocity in 1 st -order microchannel was 1.5-2.2 times faster than that in the 2 nd -order microchannels across three leaf types, with the sorptivity rule surprisingly preserved during self-powered flow through leaf-inspired vascularity from Carpinus betulus.

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“…[1][2][3] Commercially available woven fabrics possess inherently re-entrant textures in the form of cylindrical yarns and fibers. Various coating techniques including dip-coating, [4][5][6] chemical vapor deposition [7][8][9] and fluorosilane/acrylate chemistry [10][11][12][13][14] have been used to chemically modify the surface energy of woven fabrics and impart an oleophobic character. This allows the treated fabric to support low surface tension drops (e.g., alkanes and organic liquids) in the non-wetting Cassie-Baxter state.…”

Section: Introductionmentioning

confidence: 99%

Designing Robust Hierarchically Textured Oleophobic Fabrics

Kleingartner¹,

Srinivasan²,

Truong

et al. 2015

Langmuir

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Commercially available woven fabrics (e.g., nylon-or PET-based fabrics) possess inherently re-entrant textures in the form of cylindrical yarns and fibers. We analyze the liquid repellency of woven and nano-textured oleophobic fabrics using a nested model with n levels of hierarchy that is constructed from modular units of cylindrical and spherical building blocks. At each level of hierarchy, the density of the topographical features is captured using a dimensionless textural parameter D * n . For a plain-woven mesh comprised of chemically treated fiber bundles (n = 2), the tight packing of individual fibers in each bundle (D onto the fibers of a commercial woven nylon fabric.

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Laundering Durability of Superhydrophobic Cotton Fabric

Cited by 289 publications

References 24 publications

Mechanically Durable Superhydrophobic Surfaces

Mechanically Durable Superhydrophobic Surfaces

Plant leaves as templates for soft lithography

Designing Robust Hierarchically Textured Oleophobic Fabrics

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