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Super-infiltration surface as well as preparation method and application thereof

A super-wetting, scheme-based technology, applied in the field of super-wetting surfaces and its preparation, can solve problems such as limiting the application of materials, and achieve the effects of improving lipophilicity, easy industrialization, and simple preparation methods

Active Publication Date: 2021-02-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the super-wetting polymer surface prepared by the above method must be compounded with inorganic particles, and the brittleness of solid particles in flexible products limits the application of the material.
Therefore, until now, it is still not possible to prepare superamphiphilic polymer surfaces without the use of inorganic particles.

Method used

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  • Super-infiltration surface as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] According to 100 mass parts of polypropylene surface (surface 1), maleic anhydride (5 mass parts) is dissolved in acetone (50 mass parts) to obtain maleic anhydride acetone solution; Sodium hydroxide (5 mass parts) is dissolved in de Aqueous sodium hydroxide solution was obtained in ionized water (50 parts by mass); the maleic anhydride acetone solution was added to the surface of the polypropylene under vacuum and fully contacted and mixed, and then the mixture was dried (80 ° C blast drying oven drying ). The mixture of dried maleic anhydride and polypropylene surface was microwaved (power 700W) for 5min under a nitrogen atmosphere; the microwaved product was soaked in deionized water for 10 minutes and replaced with deionized water for 3 times to ensure the removal of untreated Participate in the maleic anhydride monomer of the grafting reaction, and then place it in an 80 ° C blast drying oven to dry the surface of the maleic anhydride grafted polypropylene; the sod...

Embodiment 2

[0094] According to 100 mass parts of polypropylene surface (with embodiment 1), maleic anhydride (5 mass parts) is dissolved in acetone (50 mass parts) to obtain maleic anhydride acetone solution; Sodium hydroxide (5 mass parts) is dissolved In deionized water (50 parts by mass), sodium hydroxide aqueous solution was obtained; the maleic anhydride acetone solution was added to the surface of the polypropylene under vacuum and fully contacted and mixed, and then the mixture was dried (80° C. oven dry). The mixture of dried maleic anhydride and polypropylene surface was microwaved (power 700W) for 5min under a nitrogen atmosphere; the microwaved product was soaked in deionized water for 10 minutes and replaced with deionized water for 3 times to ensure the removal of untreated The maleic anhydride monomer that participates in the grafting reaction is then placed in an 80°C blast oven to dry to obtain a dry maleic anhydride grafted polypropylene surface; an aqueous solution of s...

Embodiment 3

[0096] According to 100 mass parts of the polypropylene surface (same as Example 1), vinyl silicone oil (9 mass parts) is dissolved in ethanol (50 mass parts) to obtain vinyl silicone oil ethanol solution; sodium chloride (4 mass parts ) was dissolved in deionized water (50 parts by mass) to obtain an aqueous solution of sodium chloride; the vinyl silicone oil ethanol solution was added to the surface of the polypropylene under vacuum conditions to fully contact and mix, and then the mixture was dried (80 ° C blasting drying oven); the mixture of the dried vinyl silicone oil and the polypropylene surface is fully contacted and mixed with the sodium chloride aqueous solution, and then the mixture is dried (80°C blast drying oven); the dried mixture Microwave in a nitrogen atmosphere (power 1000W) for 3 minutes; soak the microwaved material in deionized water for 10 minutes and replace the deionized water for 3 times to ensure the removal of vinyl silicone oil monomers and sodium...

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Abstract

The invention provides a super-infiltration surface and a preparation method and an application thereof. The super-infiltration surface is a grafted polypropylene surface with a micro-nano structure and is grafted with a hydrophilic side group; or simultaneously grafts a lipophilic side group and a hydrophilic side group. The super-infiltration surface is obtained by grafting a component includinga monomer of the hydrophilic side group, or a component including a monomer of the hydrophilic side group and a monomer of the lipophilic side group with a polypropylene surface by using microwave irradiation without adding a grafting initiator; wherein the method can further comprise a step of reacting the obtained grafted polypropylene surface with hydroxide for salinization. The molecular weight of the polypropylene with the super-infiltration surface is not reduced, no residual monomer or initiator is left, the polypropylene is colorless and tasteless, and the pure water flux and the oilflux are both improved. The preparation process is simple and easy to operate, and the preparation method and equipment are simple, low in cost and easy to industrialize.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a superwetting surface and its preparation method and application. Background technique [0002] The wettability of solid material surfaces is usually determined by the chemical properties and microstructure of the solid surface. Polymer surfaces with superwetting properties have important applications in liquid separation, self-cleaning, anti-fog, liquid transport, functional polymer films, printing, and bonding. [0003] At present, many scholars have conducted in-depth research on the surface modification of polymers, but most of the studies on superwetting materials are superhydrophobic materials, and there are very few reports on superhydrophilic materials. Obviously, superhydrophilic polymers are more difficult. preparation. The polymer surface obtained by traditional grafting methods, such as ATRP, corona method, plasma treatment, ultraviolet light, etc., can only be a h...

Claims

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Application Information

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IPC IPC(8): C08J7/18C08L23/12
CPCC08J7/18C08J2323/12
Inventor 乔金樑王崧合张晓红戚桂村宋志海蔡传伦王湘赖金梅李秉海蒋海斌茹越张江茹张红彬韩朋姜超郭照琰
Owner CHINA PETROLEUM & CHEM CORP