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A kind of preparation method of high-efficiency hydrophobic oil-absorbing sponge

An oil-absorbing sponge and hydrophobic technology, applied in the field of functional polymer material preparation, can solve the problems of little effect, time-consuming and labor-intensive, etc., and achieve the effects of easy availability of raw materials, cheap raw materials, and simple operation.

Active Publication Date: 2017-12-12
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional oil-water separation technologies mainly include gravity separation, filtration, centrifugal separation, flotation separation and other methods; the methods used are mainly the use of oil-absorbing grids, large-scale oil-water separators and vacuum suction trucks. However, these technologies need to collect Polluted seawater is time-consuming and labor-intensive, with little effect

Method used

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  • A kind of preparation method of high-efficiency hydrophobic oil-absorbing sponge
  • A kind of preparation method of high-efficiency hydrophobic oil-absorbing sponge
  • A kind of preparation method of high-efficiency hydrophobic oil-absorbing sponge

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Experimental program
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Effect test

Embodiment 1

[0016] Add 500 μL of silane coupling agent KH-550 dropwise into 50 mL of PDMS emulsion (solid content 30%), and stir well to prepare the silicone emulsion immersion solution; soak the three-dimensional sponge in the immersion solution, and ultrasonically disperse it for 5 min, after soaking evenly, take out the three-dimensional three-dimensional sponge and squeeze out the excess immersion liquid, and then put it in a vacuum oven at 90 °C for 8 h to prepare a highly efficient hydrophobic and oil-absorbing sponge.

Embodiment 2

[0018] Add 250 μL of silane coupling agent KH-550 dropwise into 50 mL of PDMS emulsion (solid content 30%), and stir well to prepare the silicone emulsion immersion solution; soak the three-dimensional sponge in the immersion solution, and ultrasonically disperse it for 5 min, after soaking evenly, take out the three-dimensional three-dimensional sponge and squeeze out the excess immersion liquid, and then put it in a vacuum oven at 90 °C for 8 h to prepare a highly efficient hydrophobic and oil-absorbing sponge.

Embodiment 3

[0020] Add 500 μL of silane coupling agent methyl tributylketoxime silane dropwise into 50 mL of PDMS emulsion (solid content 30%), stir well to prepare silicone emulsion immersion solution; soak the three-dimensional three-dimensional sponge in the immersion solution , ultrasonically dispersed for 5 min, soaked evenly, took out the three-dimensional three-dimensional sponge and squeezed out the excess immersion liquid, and then placed it in a vacuum oven at 90 °C for 8 h to obtain a high-efficiency hydrophobic oil-absorbing sponge.

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Abstract

The invention discloses a preparation method of a high-efficiency hydrophobic oil-absorbing sponge. This method uses a porous sponge as a substrate, and forms a silicone hydrophobic layer on the surface of the sponge through simple soaking and curing. The amphiphilic sponge that originally absorbs water and oil becomes a hydrophobic and oil-absorbing sponge. It is a simple and effective surface modification that changes the properties of the sponge. method. The method of the invention is easy to operate, and the raw materials are cheap and easy to obtain. The prepared three-dimensional hydrophobic oil-absorbing sponge is a kind of automatic and efficient oil-water separation material, and can provide a cheap solution for the purification of crude oil-polluted seawater and oily industrial wastewater.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional polymer materials, and in particular relates to a preparation method of a high-efficiency hydrophobic oil-absorbing sponge. The sponge can automatically and efficiently realize the separation of oil and water, and provide a cheap solution for the purification of crude oil polluted seawater and oily industrial wastewater. Background technique [0002] The reusable three-dimensional oil-water separation material is based on the superoleophilic-superhydrophobic surface / interface properties, which can efficiently and automatically separate layered oil / water mixtures, and even separate oil-water emulsions, including water-in-oil and Oil-in-water emulsion. The three-dimensional oil-water separation material can automatically absorb oil and repel water, so there is no need to collect polluted water, and it is fast, efficient, energy-saving, and environmentally friendly. Oily industria...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022
CPCB01D17/0202
Inventor 邓卫星彭锦雯权翼腾邓俊杰彭啸徐旭
Owner GUILIN UNIVERSITY OF TECHNOLOGY