The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces (SLIPS). Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). SLIPS outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where SLIPS will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.

Slippery surfaces with high pressure stability, optical transparency, and self-healing characteristics

A self-healing, scratch resistant slippery surface that is manufactured by wicking a chemically-inert, high-density liquid coating over a roughened solid surface featuring micro and nanoscale topographies is described. Such a slippery surface shows anti-wetting properties, as well as exhibits significant reduction of adhesion of a broad range of biological materials, including particles in suspension or solution. Specifically, the slippery surfaces can be applied to medical devices and equipment to effectively repel biological materials such as blood, and prevent, reduce, or delay coagulation and surface-mediated clot formation. Moreover, the slippery surfaces can be used to prevent fouling by microorganisms such as bacteria.

Slippery liquid-infused porous surfaces and biological applications thereof

Excellent water repellency and Oil repellency are imparted to a textile by a method including (1) preparing a treatment liquid comprising a water- and oil-repellent agent, (2) adjusting pH of the treatment liquid to at most 7, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the water- and oil-repellent agent comprises at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer and a fluorine-containing low molecular weight compound, and the water- and oil-repellent agent or the treatment liquid contains a cationic emulsifier and/or a salt

Water- and oil-repellent treatment of textile

The present disclosure describes a strategy to create self-healing, slippery self- lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction- reduction fluid handling and transportation, medical devices, anti-icing, optical sensing,and as self-cleaning, and anti-fouling materials operating in extreme environments.

Slippery self-lubricating polymer surfaces

A method of preparing an article having a slippery surface includes providing a metal-containing surface, chemically modifying the metal-containing surface to roughen the metal-containing surface, and disposing a lubricating layer on the roughened metal-containing surface, wherein the lubricating layer is substantially stabilized on the roughened metal-containing surface.

Slips Surface Based on Metal-Containing Compound

PURPOSE:To obtain an oil-contg. porous body suitable for a bearing, an oil retainer, etc., by impregnating a porous molding obtd. from a polytetrafluoroethylene molding powder with an oil. CONSTITUTION:This oil-contg. porous body is obtd. by baking a polytetrtafluoroethylene molding powder and impregnating the resulting porous molding with an oil. A lubricating or edible oil is used for the impregnation. The porous molding is pref. obtd. from the powder having baking densification indexes P10, P25, and P50 each not higher than 0.2. The porous molding of any desired shape can be easily obtd. by premolding the powder under a low pressure and baking the resulting molding at the m.p. of polytetrafluoroethylene or higher.

Oil-containing porous body

PROBLEM TO BE SOLVED: To provide an article subjected to an antireflection treatment which can be stably produced at a low cost and has the same scratching resistance and antireflection effect as an article produced by conventional techniques, and to provide an article subjected to antireflection treatment with a polymer having higher antireflection effect than a conventional antireflection film while scratching resistance is maintained. SOLUTION: This article subjected to an antireflection treatment consists of an acryl resin base body and a fluorine-contg. polymer film applied on the surface of the body. The coating film is formed to 0.03 to 0.5μm thickness. The fluorine-contg. polymer has 1.30 to 1.40 refractive index and contains blocks having compatibility with at least an acryl resin and blocks of a fluorine-contg. elastomer.

Article with antireflection treatment

PROBLEM TO BE SOLVED: To provide a textile product having excellent water and oil repellency. SOLUTION: The process for the production of a treated textile product comprises (1) a step to prepare a treating liquid containing a water and oil repellent, (2) a step to lower the pH of the treating liquid to <=7, preferably <=3, (3) a step to apply the treating liquid to the textile product, (4) a step to perform the steam treatment of the textile product and (5) a step to wash the product with water and dehydrate the washed product. The water and oil repellent contains at least one kind of fluorine-containing compound selected from fluorine-containing polymers and fluorine-containing low-molecular compounds and the water and oil repellent or the treating liquid contains an organic salt.

Water- and oil-repelling treatment of textile product

PROBLEM TO BE SOLVED: To provide a polymer which can give improved durability of water repellency/oil repellency and the persistence of stainproofness after cleaning by selecting a polymer which has reactive groups selected among carboxyl groups or salts thereof, hydroxyl groups, etc., and fluoroalkyl groups, in which the melting point of the constituent monomer is specified and the melting point of the polymer is specified. SOLUTION: The melting point of the fluoroalkyl-containing monomer of the stainproofing polymer (A) is 70°C or above, and the melting point of the polymer A is 50°C or above. The amount of the reactive groups is 0.01-30 wt.% based on polymer A, and that of the fluoroalkyl groups is 30-90 wt.% to based on polymer A. Polymer A is a copolymer comprising a monomer having a carbon-carbon double bond and a reactive group selected among carboxyl, a carboxylic anhydride group, hydroxyl, epoxy, a phosphoric acid group, an alkoxysilane group, an imine group, a sulfo group, an amino group, an isocyanate group, a blocked isocyanate group and a chlorine atom and a monomer having a fluoroalkyl group. COPYRIGHT: (C)1998,JPO

Novel polymer and stainproofing agent composition containing the same

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Oil-containing porous body

Article with antireflection treatment

Water- and oil-repelling treatment of textile product

Novel polymer and stainproofing agent composition containing the same