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Super-hydrophobic oleophilic sponge material and preparing method and oil-water separation application thereof

A super-hydrophobic and sponge technology, applied in the direction of liquid separation, separation methods, chemical instruments and methods, etc., can solve the problems of poor repeatability, low separation efficiency, low mechanical strength, etc., and achieve cost reduction, low surface energy of sponge, and low price cheap effect

Inactive Publication Date: 2019-04-16
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problems of low mechanical strength, low separation efficiency and poor repeatability of oil-water separation porous materials at the present stage

Method used

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  • Super-hydrophobic oleophilic sponge material and preparing method and oil-water separation application thereof
  • Super-hydrophobic oleophilic sponge material and preparing method and oil-water separation application thereof
  • Super-hydrophobic oleophilic sponge material and preparing method and oil-water separation application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A preparation method of a superhydrophobic lipophilic sponge material, comprising the steps of:

[0050] (1) Pretreatment of the sponge: 60ppi polyurethane sponges were respectively subjected to ultrasonic vibration cleaning for 0.5h in ethanol and deionized water to remove impurities and obtain pretreated sponges;

[0051] (2) Sponge roughening treatment: soak the pretreated sponge in step (1) in the mixed aqueous solution of chromium trioxide and concentrated sulfuric acid, and carry out surface roughening treatment, wherein, by mass ratio, chromium trioxide: thick The ratio of sulfuric acid is 1:1, the mass concentration of solute in the roughening solution is 50g / L, and the immersion time in the roughening solution is 100s. Take out the sponge, wash it repeatedly with a large amount of deionized water until the filtrate becomes transparent and clear, and dry it in vacuum at 60°C for 24 hours to obtain a sponge containing active groups;

[0052] (3) Hydrophobic modi...

Embodiment 2

[0056] A preparation method of a superhydrophobic lipophilic sponge material, comprising the steps of:

[0057] (1) Pretreatment of the sponge: 100ppi melamine sponges were respectively subjected to ultrasonic shock cleaning in ethanol and deionized water for 2 hours to remove impurities and obtain pretreated sponges;

[0058] (2) Sponge roughening treatment: soak the pretreated sponge in step (1) in the mixed aqueous solution of chromium trioxide and concentrated sulfuric acid, and carry out surface roughening treatment, wherein, by mass ratio, chromium trioxide: thick The ratio of sulfuric acid is 1:1, the mass concentration of solute in the roughening solution is 100g / L, and the soaking time in the roughening solution is 100s. Take out the sponge, wash it repeatedly with a large amount of deionized water until the filtrate becomes transparent and clear, and dry it in vacuum at 70°C for 48 hours to obtain a sponge containing active groups;

[0059] (3) Hydrophobic modificat...

Embodiment 3

[0063] A preparation method and application of a superhydrophobic lipophilic sponge material, comprising the steps of:

[0064] (1) Pretreatment of the sponge: 40ppi polyurethane sponges were respectively subjected to ultrasonic vibration cleaning for 1 hour in ethanol and deionized water to remove impurities and obtain pretreated sponges;

[0065] (2) Sponge roughening treatment: soak the pretreated sponge in step (1) in the mixed aqueous solution of chromium trioxide and concentrated sulfuric acid, and carry out surface roughening treatment, wherein, by mass ratio, chromium trioxide: thick The ratio of sulfuric acid is 1:2, the mass concentration of solute in the roughening solution is 20g / L, and the immersion time in the roughening solution is 60s. Take out the sponge, wash it repeatedly with a large amount of deionized water until the filtrate becomes transparent and clear, and dry it in vacuum at 70°C for 24 hours to obtain a sponge containing active groups;

[0066] (3)...

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Abstract

The invention discloses a super-hydrophobic oleophilic sponge material and a preparing method and oil-water separation application thereof, and belongs to the preparation of high-performance oil-waterseparation composites. The preparing method includes the steps of cleaning a sponge to remove impurities, putting the sponge in roughening liquid for surface roughening treatment, and adding a fattyacid solution for hydrophobic modification treatment to obtain the super-hydrophobic oleophilic sponge material. The super-hydrophobic oleophilic sponge material is a sponge material obtained after anon-polarity long-chain alkane group conducts hydrophobic modification on the surface of a substrate with a polyurethane or melamine sponge as the substrate. The preparing process is simple, the priceis low, and the oil absorption performance is excellent and stable. The material can be widely applied for leaking oil recovery, oil-containing wastewater treatment and oil-water mixture separation;the super-hydrophobic oleophilic sponge material solves the problem that an oil-water separation porous material is low in mechanical strength, low in separation efficiency, poor in repeatability andthe like in the current stage.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to the preparation of a high-performance oil-water separation composite material, in particular to a superhydrophobic and lipophilic sponge material, a preparation method thereof and an oil-water separation application. Background technique [0002] The petroleum industry is the basic industry of the national economy. Traditional industries such as machinery, electric power, petrochemicals, automobiles and construction, and even the increasingly important electronics industry and the development of many high-tech industries all rely on petroleum resources. However, in the actual production process due to accidents And improper post-processing will bring serious environmental pollution problems. In recent years, oil and organic chemical spills have occurred frequently, causing catastrophic damage to the environment and ecosystems. The leaked toxic substances ...

Claims

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Application Information

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IPC IPC(8): B01J20/28B01J20/32B01D17/022
CPCB01D17/0202B01J20/28011B01J20/28045B01J20/3206
Inventor 李婷王俊海傅金祥莫兰兰王培誉沈阳苏丹婷
Owner SHENYANG JIANZHU UNIVERSITY
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