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Underwater oil-adsorption-resistant oil-adhesion-resistant material, membrane, and coating, and preparation method and application thereof

An adhesive material, oil adsorption technology, applied in chemical instruments and methods, coatings, membranes, etc., can solve problems such as loss of special wettability, anti-oil pollution function or oil-water separation function, adhesion and pollution, etc.

Active Publication Date: 2017-08-29
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, these materials are very easily adhered and polluted by high-viscosity oils such as petroleum, heavy oil, silicone oil, and heavy diesel oil, causing them to lose their special wettability, anti-oil pollution function or oil-water separation function

Method used

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  • Underwater oil-adsorption-resistant oil-adhesion-resistant material, membrane, and coating, and preparation method and application thereof
  • Underwater oil-adsorption-resistant oil-adhesion-resistant material, membrane, and coating, and preparation method and application thereof
  • Underwater oil-adsorption-resistant oil-adhesion-resistant material, membrane, and coating, and preparation method and application thereof

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preparation example Construction

[0048] Also provided in some embodiments is a method of preparing an oil-adherent film or coating, comprising:

[0049] Provide a polymer solution, including a polymer compound (polymer raw material) containing an ionizable hydrophilic group;

[0050] Coating or impregnating the substrate with the polymer solution, coating or adsorbing the polymer compound on the substrate to form a polymer compound layer;

[0051] Fully impregnating the polymer compound layer with an alkaline solution to invert the phase of the polymer compound and ionize the hydrophilic groups in the polymer compound, thereby forming the film or coating on the substrate.

[0052] In the foregoing embodiments, by fully impregnating the polymer compound layer with an alkaline solution, the organic solvent dissolving the polymer compound can be diffused into the alkaline solution, but the polymer compound is not compatible with the basic poor solvent. Dissolution and precipitation forming, so that the polymer ...

Embodiment 1

[0082] Example 1: Dissolve sulfonated polyethersulfone in N,N-dimethylformamide to prepare a polymer raw material solution with a concentration of 10 wt%. The above-mentioned polymer raw material solution is evenly coated on the surface of a clean glass substrate by a scraping method, and then transferred into an aqueous solution of sodium hydroxide with a concentration of 0.01mol / L for phase inversion and the reaction of generating ionized hydrophilic functional groups. After 10 minutes, it was taken out from the aqueous sodium hydroxide solution, and the excess sodium hydroxide was washed away with clear water to obtain the finished oil-resistant adhesion material (separation membrane). Its optical photo and surface appearance can be found in figure 1 with figure 2 , its underwater oil contact angle is 166° (see figure 1 ), its underwater oil adhesion is about 0μN (see image 3 ).

Embodiment 2

[0083] Example 2: Dissolve sulfonated polyethersulfone in N,N-dimethylformamide to prepare a polymer raw material solution with a concentration of 10%. Apply the above-mentioned polymer raw material solution evenly on the surface of a clean glass substrate by the scraping method, then transfer it to a water bath for phase inversion, take it out after 10 minutes and transfer it to an aqueous solution of sodium hydroxide with a concentration of 0.1mol / L for formation Ionize the reaction of the hydrophilic functional group, take it out of the sodium hydroxide aqueous solution after 5 minutes, wash off the excess sodium hydroxide with water, and obtain the finished oil-resistant adhesion separation membrane.

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Abstract

The invention discloses an underwater oil-adsorption-resistant oil-adhesion-resistant material (an oil-adhesion-resistant material for short), membrane, and coating, and a preparation method and application thereof. The oil-adhesion-resistant material is made from a macromolecular compound containing ionizable hydrophilic groups, and the macromolecular compound is subjected to phase inversion and the hydrophilic groups are ionized to form the oil-adhesion-resistant material. For multiple oil-phase systems underwater, the oil-adhesion-resistant material has a static contact angle greater than 140 degrees and the anchoring strength less than 10 [mu]N. The oil-adhesion-resistant material has underwater super hydrophobic property and adhesion resistance for light low viscosity oil, such as diesel and edible oil, organic reagents immiscible to water, and high viscosity oil, such as petroleum, heavy oil, silicone oil, and heavy diesel fuel. The membrane and the coating formed from the materials have effects of oil adhesion resistance, oil pollution resistance, and self-cleaning in water, and have broad application prospects to the fields of oil adhesion resistance, oil pollution resistance, oil / water separation, oil-resistant coating, ocean oil spill treatment and underwater high-viscosity oil separation and collection.

Description

technical field [0001] The invention specifically relates to a water-resistant oil adsorption and adhesion (hereinafter collectively referred to as "oil-resistant adhesion") material, an oil-resistant adhesion film or coating, a preparation method and application thereof. Background technique [0002] Marine oil spills and oil spills often occur in the process of oil exploitation and transportation. Every year, a large amount of oil leaks into the natural water environment, which not only causes waste of resources, but also causes serious environmental pollution, kills a large number of animals and plants, and endangers human beings. own health. Improper treatment of oil spills, such as burning in situ and spraying chemical treatment agents, will further cause secondary pollution. Separating and recycling the leaked oil is the correct way to meet the viewpoint of sustainable development. At present, the main methods for separating and collecting oil from oil-water mixtures...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/78B01D71/06B01D69/10B01D67/00C09D181/06C09D179/04C09D171/12C09D151/00C09D171/10C09D151/08
CPCB01D69/02B01D69/10B01D71/06B01D71/78C09D151/003C09D151/08C09D171/00C09D171/12C09D179/04C09D181/06B01D2325/36B01D67/00111B01D2325/0283B01D71/281B01D67/0016B01D71/5221B01D67/0013B01D71/34B01D71/62B01D71/68B01D71/76B01D2325/14B01D61/027B01D61/145B01D61/147B01D2323/36B01D2323/46B01D2325/20E21B43/36
Inventor 靳健高守建张丰
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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