Robust Superhydrophobicity in Large‐Area Nanostructured Surfaces Defined by Block‐Copolymer Self Assembly

Checco, Antonio; Rahman, Atikur; Black, Charles T.

doi:10.1002/adma.201304006

Cited by 175 publications

(164 citation statements)

References 50 publications

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“…Durable superhydrophobic coatings have been reported recently, 26 such as acrylic polyurethane based coating, 27 textured surface obtained by chemical etching, 28,29 surfaces template from innately microstructured hydrogel matrix, 30 block-copolymer-based thin-film patterning, 31 combination of rodlike palygorskite and organosilanes via spray-coating, 32 fluorine-free polysiloxane/multiwalled carbon nanotubes, 33 titanium dioxide materials with special wettability, 34 or various coatings fabricated on fabrics/sponges/cotton. [35][36][37][38][39][40] However, most of the reported surfaces are not durable enough, as they can only resist abrasion against wipes, 28 fine sandpaper (e.g., 800, 1000, 2000 grid), mild droplets/sand impinging, 30,31 or were easily disabled after a short distance (i.e., less than 5 m) of abrasion. 27,29,[41][42][43] Besides, the mechanical stability may be simply due to the fact that the coating thickness is too thick to be worn out completely to expose the substrate surface underneath the superhydrophobic coating.…”

Section: Introductionmentioning

confidence: 99%

Designing durable and flexible superhydrophobic coatings and its application in oil purification

Wang

Xiong

et al. 2016

J. Mater. Chem. A

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Lotus-inspired superhydrophobic coatings are usually mechanically weak and lack durability, this hinders their practical applications. A suspension that can be treated on various materials in any size and shape to form a mechanically durable superhydrophobic coating is developed, which retains water repellent properties after multiple cycles of abrasion, blade scratching, tape-peeling, repeated deformation, a series of environmental tests and recycling. Based on its superhydrophobicity under oil, two highly efficient systems were developed for oil purification -stirring and inverted cone systems. Small water drops converge on the coated surface that was immersed in oil through velocity-controlled stirring, or designing an inverted cone superhydrophobic surface under oil to collect water drops spontaneously. This coating can be readily used for practical applications to make a durable superhydrophobic coating that functions either in air or oils.

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Section: Introductionmentioning

confidence: 99%

Designing durable and flexible superhydrophobic coatings and its application in oil purification

Wang

Xiong

et al. 2016

J. Mater. Chem. A

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“…Textured surfaces are gaining popularity today due to their special physical properties such as nanotextured surface for improvement of water repellent [1] or bactericidal properties of orthopedic implants [2] or tribological properties in hydrodynamic lubrication [3]. Some of these structure designs try to mimic the "mystical" property of nature.…”

Section: Introductionmentioning

confidence: 99%

Adhesive Force of Flat Indenters With Brush-Structure

Popov

2018

FU Mech Eng

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Abstract. We have numerically studied adhesive contact between a flat indenter with brush structure and an elastic half space using the boundary element method. Various surface structures with different size, number and shape of the "pillars", as well as their distributions (regular or random) have been investigated. The results validate the theoretical prediction that the adhesive force in contact of an indenter with discontinuous areas is roughly proportional to the square root of the real contact density ("filling factor").

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Section: Reviewmentioning

confidence: 96%

Strategies for Inorganic Incorporation using Neat Block Copolymer Thin Films for Etch Mask Function and Nanotechnological Application

et al. 2016

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Block copolymers (BCPs) and their directed self-assembly (DSA) has emerged as a realizable complementary tool to aid optical patterning of device elements for future integrated circuit advancements. Methods to enhance BCP etch contrast for DSA application and further potential applications of inorganic nanomaterial features (e.g., semiconductor, dielectric, metal and metal oxide) are examined. Strategies to modify, infiltrate and controllably deposit inorganic materials by utilizing neat self-assembled BCP thin films open a rich design space to fabricate functional features in the nanoscale regime. An understanding and overview on innovative ways for the selective inclusion/infiltration or deposition of inorganic moieties in microphase separated BCP nanopatterns is provided. Early initial inclusion methods in the field and exciting contemporary reports to further augment etch contrast in BCPs for pattern transfer application are described. Specifically, the use of evaporation and sputtering methods, atomic layer deposition, sequential infiltration synthesis, metal-salt inclusion and aqueous metal reduction methodologies forming isolated nanofeatures are highlighted in di-BCP systems. Functionalities and newly reported uses for electronic and non-electronic technologies based on the inherent properties of incorporated inorganic nanostructures using di-BCP templates are highlighted. We outline the potential for extension of incorporation methods to triblock copolymer features for more diverse applications. Challenges and emerging areas of interest for inorganic infiltration of BCPs are also discussed.

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Robust Superhydrophobicity in Large‐Area Nanostructured Surfaces Defined by Block‐Copolymer Self Assembly

Cited by 175 publications

References 50 publications

Designing durable and flexible superhydrophobic coatings and its application in oil purification

Designing durable and flexible superhydrophobic coatings and its application in oil purification

Adhesive Force of Flat Indenters With Brush-Structure

Strategies for Inorganic Incorporation using Neat Block Copolymer Thin Films for Etch Mask Function and Nanotechnological Application

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