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Method for preparing efficient 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 time-consuming, labor-intensive, and little effect, and achieve the effects of easy availability of raw materials, cheap raw materials, and simple operation.

Active Publication Date: 2016-07-27
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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  • Method for preparing efficient hydrophobic oil-absorbing sponge
  • Method for preparing efficient hydrophobic oil-absorbing sponge
  • Method for preparing efficient hydrophobic oil-absorbing sponge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2

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

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 obtain silicone emulsion immersion solution; soak the three-dimensional sponge in the immersion solution, and ultrasonically Disperse for 5 minutes, soak evenly, take out the three-dimensional three-dimensional sponge and squeeze out the excess immersion liquid, and then put it in a vacuum drying oven at 90 ° C for 8 hours to obtain a high-efficiency hydrophobic and oil-absorbing sponge.

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Abstract

The invention discloses a method for preparing efficient hydrophobic oil-absorbing sponge.According to the method, porous sponge serves as a base body, an organic silicon hydrophobic layer is formed on the surface of the sponge through simple soaking and solidifying, the original water-absorbing oil-absorbing amphipathic sponge becomes the hydrophobic oil-absorbing sponge, and the method is a surface modification method capable of easily and effectively changing sponge performance.The method is easy to operate, raw materials are low in price and easy to obtain, the prepared three-dimensional hydrophobic oil-absorbing sponge is an automatic and efficient oil-water separation material, and a cheap scheme can be provided for purification of crude oil polluted seawater and oil-containing 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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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
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