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Preparation method of super-hydrophobic sponge material for oil-water separation

A super-hydrophobic sponge and oil-water separation technology, applied in the field of oil-water separation materials, can solve the problems of weak oil absorption and water resistance, affecting oil absorption efficiency and separation effect, and achieve the best adsorption capacity effect

Inactive Publication Date: 2020-05-12
安徽圩码网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional oil-absorbing materials have weak oil absorption and water resistance, and absorb a large amount of water while absorbing oil, which affects oil absorption efficiency and separation effect

Method used

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  • Preparation method of super-hydrophobic sponge material for oil-water separation
  • Preparation method of super-hydrophobic sponge material for oil-water separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of superhydrophobic sponge material for oil-water separation:

[0033] Add polyether silicone, polyoxypropylene glycol, and toluene into the reactor, the mass ratio of polyether silicone and polyoxypropylene glycol is 1:8, stir and mix evenly, heat up to 45°C, and then Add isophorone diisocyanate and dibutyltin laurate, continue to react for 8 hours, add γ-aminopropyltrimethoxysilane and stir rapidly for 3 minutes, pour the mixture into the mold, and place the mold in an oven at 1°C / min Raise the temperature to 70°C for 30 minutes and then raise the temperature to 110°C for 8 hours at a rate of 6°C / min. , concentrated sulfuric acid, and water at a mass ratio of 1:1:20, heat the coarsening solution in a water bath at 40°C, then immerse the semi-finished product A for 1 minute, take it out, wash it with a large amount of water until it is neutral, and then use the freeze-drying method at a low temperature of -60°C Next, dry it to obtain the semi-fini...

Embodiment 2

[0037] A preparation method of superhydrophobic sponge material for oil-water separation:

[0038]Add polyether silicone, polyoxypropylene glycol, and toluene into the reactor, the mass ratio of polyether silicone and polyoxypropylene glycol is 1:8, stir and mix evenly, heat up to 50°C, and then Add isophorone diisocyanate and dibutyltin laurate, continue to react for 6 hours, add γ-aminopropyltrimethoxysilane and stir quickly for 2 minutes, pour the mixture into the mold, and place the mold in an oven at 1°C / min Raise the temperature to 60°C for 40 minutes and then raise the temperature to 110°C for 5 hours at a rate of 8°C / min to form. After cooling to room temperature, a semi-finished product A is obtained. Dissolve chromium oxide and concentrated sulfuric acid in water to make a coarsening solution. Chromium oxide , concentrated sulfuric acid, and water at a mass ratio of 1:1:20, heat the coarsening solution in a water bath at 40°C, then immerse the semi-finished product A...

Embodiment 3

[0042] A preparation method of superhydrophobic sponge material for oil-water separation:

[0043] Add polyether silicone, polyoxypropylene glycol, and toluene into the reactor, the mass ratio of polyether silicone and polyoxypropylene glycol is 1:8, stir and mix evenly, heat up to 55°C, and then Add isophorone diisocyanate and dibutyltin laurate, continue to react for 10 hours, add γ-aminopropyltrimethoxysilane and stir quickly for 2 minutes, pour the mixture into the mold, and place the mold in an oven at 3°C / min Raise the temperature to 60°C for 30 minutes at a rate of 5°C / min and then raise the temperature to 110°C for 5 hours at a rate of 5°C / min to form a semi-finished product A after cooling to room temperature. Dissolve chromium oxide and concentrated sulfuric acid in water to make a coarsening solution. , concentrated sulfuric acid, and water at a mass ratio of 1:1:20, heat the coarsening solution in a water bath at 40°C, then immerse the semi-finished product A for 1...

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Abstract

The invention provides a preparation method of a super-hydrophobic sponge material for oil-water separation, and relates to the field of oil-water separation materials. The preparation method comprises the following steps: mixing polyether silicone, polypropylene oxide glycol and methylbenzene, heating, adding isophorone diisocyanate and dibutyltin laurate, reacting for 5-10 h, adding gamma-aminopropyltrimethoxysilane into a mold, and curing the mold to form a semi-finished product A; coarsening the semi-finished product A, and freeze-drying the semi-finished product A to obtain a semi-finished product B; carrying out ultraviolet irradiation on the semi-finished product B, and immersing the semi-finished product B into a triethyl chlorosilane n-hexane solution to obtain a semi-finished product C; and loading nano-silica to obtain the super-hydrophobic sponge material finished product. The contact angle between the surface of the sponge material and water is larger than 150 DEG, the sponge material has super-hydrophobic performance, the contact angle is only slightly decreased after n-hexane is repeatedly absorbed for 10 times, the sponge material has excellent adsorption capacity for diesel oil with high viscosity, and the adsorption capacity is basically not decreased after repeated adsorption for multiple times.

Description

technical field [0001] The invention relates to the field of oil-water separation materials, in particular to a preparation method of a superhydrophobic sponge material used for oil-water separation. Background technique [0002] With the development of the economy, a large number of water sources polluted by organic matter or oil products are produced in modern society. The more typical ones are the frequent occurrence of oil spill pollution incidents in marine transportation in recent years. These polluted water sources have caused great damage to the ecological environment. Traditional treatment The methods of oil pollution of water sources are mainly divided into physical methods, chemical methods and biological methods. The physical treatment method has low efficiency and is greatly affected by the weather environment. When chemical and biological methods are used to treat oil-polluted water sources, a certain amount of chemical reagents are required for treatment, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/26B01J20/30C02F1/28C08J9/36C08J9/40C08L75/08C02F101/32
CPCB01J20/265B01J20/28011B01J20/28054C02F1/28C02F2101/32C08J9/36C08J9/40C08J2375/08
Inventor 尹娜
Owner 安徽圩码网络科技有限公司
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