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Material with water-controlled function and preparation method of same

A technology of functional materials and absolute ethanol, which is applied in the field of water-controlling functional materials and its preparation, based on foamed metal water-controlling functional materials and its preparation, can solve the problems that limit the practical application of preparation methods, and achieve good hydrophobic effect and excellent performance. Stable and fast lipophilic effect

Inactive Publication Date: 2012-09-12
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation method is fast, simple and convenient, but there are certain requirements on the size and pore size of the material, and the preparation of hydrogel requires a variety of chemicals, which limits the practical application of this preparation method

Method used

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  • Material with water-controlled function and preparation method of same
  • Material with water-controlled function and preparation method of same
  • Material with water-controlled function and preparation method of same

Examples

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preparation example Construction

[0045] The preparation method of the water control functional material provided by the present invention can be carried out according to the following steps, and its process is as follows: figure 1 Shown:

[0046] (1) Take a metal foam with a length of 1cm-20cm (preferably 10cm), a width of 1cm-20cm (preferably 5cm), and a thickness of 0.1cm-1cm (preferably 0.2cm), soak it in 100mL-300mL (preferably 200mL) with a mass concentration of 1mol / L-5mol / L (preferably 4mol / L) dilute nitric acid solution, soak for 20 minutes-1 hour (preferably 0.5 hour), take it out, rinse it repeatedly with deionized water 4-5 times, put it in 80℃-110 ℃ (preferably 90 ℃) drying oven ready for use.

[0047] (2) put the metal foam corroded by dilute nitric acid into the reaction chamber of the low-temperature plasma surface treatment instrument and process it twice. The parameters of the first pass treatment are: the vacuum degree of the back and the bottom is 9 Pa-20 Pa (preferably 10 Pa) , high-fr...

Embodiment 1

[0051] This embodiment provides a water control functional material, which is prepared through the following steps:

[0052] (1) Take a nickel-based open-cell foam metal with a size of 10cm×10cm×0.5cm, soak it in 100mL of dilute nitric acid solution with a concentration of 1mol / L for 20 minutes, take it out, rinse it repeatedly with deionized water 4-5 times, put Dry it in an oven at 80°C for later use; the electron microscope photo of the open-cell foam metal corroded by dilute nitric acid is as follows: image 3 As shown, it can be observed that the surface of the open-cell metal foam after treatment is relatively rough, which is different from that of the foam metal without dilute nitric acid corrosion treatment (such as figure 2 shown) is significantly different from the smooth surface.

[0053] (2) Put the open-cell foam metal corroded by dilute nitric acid into the reaction chamber of the low-temperature plasma surface treatment instrument for two times of treatment. T...

Embodiment 2

[0057] This embodiment provides a water control functional material, which is prepared through the following steps:

[0058] (1) Take a nickel-based open-cell foam metal with a size of 20cm×10cm×0.5cm, soak it in 300mL of dilute nitric acid solution with a concentration of 5mol / L for 1 hour, take it out, rinse it repeatedly with deionized water 4-5 times, Dry it in an oven at 110°C.

[0059] (2) Put the open-cell foam metal corroded by dilute nitric acid into the reaction chamber of the low-temperature plasma surface treatment instrument for two times of treatment. The parameters of the first treatment are: the vacuum degree of the back and bottom is 20 Pa, and the high-frequency power is 300 watts. , the discharge time is 1000 seconds; the parameters of the second pass are: the back vacuum is 20 Pa, the high-frequency power is 180 watts, and the discharge time is 1000 seconds.

[0060] (3) Take out the open-cell foam metal treated with low-temperature plasma, put it into the...

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Abstract

The invention relates to a material with a water-controlled function and a preparation method of the material. The matrix of the material with a water-controlled function is foam metal; one layer of poly-perfluorinated alkyl siloxane film is arranged on the surface of the foam metal; and the poly-perfluorinated alkyl siloxane film has the thickness of 30 to 40 nm. The preparation method for the material with a water-controlled function comprises the following steps: soaking the foam metal into nitric acid at the concentration of 1 to 5 mol / L for 20 minutes to 1 hour, taking out the foam metal, cleaning the foam metal by using deionized water and drying; placing the dried foam metal into a low-temperature plasma surface treatment instrument reaction chamber and performing treatment for two times; and placing the foam metal into the mixed solution of poly-perfluorinated alkyl siloxane and absolute ethyl alcohol, soaking for 24 to 48 hours, cleaning by using absolute ethyl alcohol, drying, and forming one layer of poly-perfluorinated alkyl siloxane film on the surface of the foam metal to obtain the material with a water-controlled function. The material with a water-controlled function has super-hydrophobicity and super-lipophilicity and has wide application prospect in the fields of industry and mining, petrochemistry, metallurgy, machinery, environmental protection and the like.

Description

technical field [0001] The invention relates to a water-controlling functional material and a preparation method thereof, in particular to a metal-foam-based water-controlling functional material and a preparation method thereof, belonging to the technical field of functional materials. Background technique [0002] After decades of development and exploitation, the water content of my country's oilfields has been rising, and some major oilfields have entered the middle and later stages of high water-cut development, and the water content of many oilfields has exceeded 90%. For oil fields with high water cut, the cost of produced water treatment usually accounts for more than 75% of the cost of crude oil production. Due to the energy consumption of raising water from the wellbore to the surface and the increasing cost of water treatment, the production of oil wells reaches the economic limit and is forced to be abandoned. In addition, oily sewage will also cause environment...

Claims

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Application Information

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IPC IPC(8): B01D17/022
Inventor 刘合刘克松李舟裴晓含郑立臣石白茹杨清海金旭江雷
Owner PETROCHINA CO LTD
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