Super-hydrophobic sponge ball as well as preparation method and application thereof

A technology of super-hydrophobic sponge and sponge ball, which is applied in the field of super-hydrophobic sponge and its preparation, which can solve the problems of inability to efficiently collect and separate oil and organic pollutants, high absorption capacity of sponge, and lack of hydrophobic effect, etc., to achieve excellent mechanical Effect of stability, high absorbency, best chemical stability and mechanical stability

Pending Publication Date: 2022-04-08
ZHUHAI TAIRAN TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, sponge is a kind of porous hydrophilic polymer, and its characteristics include high porosity, light weight, good elasticity, and low production cost. Therefore, sponges are usually used to adsorb pollutants and oils in waste water at present; but this During the adsorption process, the sponge has the problem of absorbing water and oil at the same time because it does not have the hydrophobic effect, so it cannot efficiently collect and separate the oil and organic pollutants in the sewage; Demand for high absorption capacity, strong selectivity, high oil absorption, and good durability

Method used

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  • Super-hydrophobic sponge ball as well as preparation method and application thereof
  • Super-hydrophobic sponge ball as well as preparation method and application thereof
  • Super-hydrophobic sponge ball as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing a superhydrophobic sponge ball, comprising the following steps;

[0036] Step 1: Take 1.8g of titanium dioxide particles and 30ml of ethyl acetate, respectively, and add them to the beaker in turn, and then place the beaker on an ultrasonic uniform device for dispersion and mixing to obtain a mixed solution for later use;

[0037] Step 2: Take 3 g of stearic acid and add it into the mixed solution prepared in step 1 and stir, so that the stearic acid is completely dissolved to obtain the experimental solution, which is set aside;

[0038] Step 3: Put the sponge ball into the experimental solution prepared in step 2, then seal the mouth of the beaker with plastic wrap, place the sealed beaker in a water bath and stir for 1 hour, then continue to add Propyltrichlorosilane 0.6ml, and finally place the sealed beaker in a water bath and stir for 3 hours, then take out the sponge ball and drain it for later use;

[0039] Step 4...

Embodiment 2

[0049] This embodiment provides a method for preparing a superhydrophobic sponge ball, comprising the following steps;

[0050] Step 1: Take 0.9g of titanium dioxide particles and 15ml of ethyl acetate, respectively, and add them to the beaker in turn, and then place the beaker on an ultrasonic uniform device for dispersion and mixing to obtain a mixed solution for later use;

[0051] Step 2: Add 1.5 g of stearic acid into the mixed solution prepared in step 1 and stir to completely dissolve the stearic acid to obtain the experimental solution for later use;

[0052] Step 3: Put the sponge ball into the experimental solution prepared in step 2, then seal the mouth of the beaker with plastic wrap, place the sealed beaker in a water bath and stir for 0.8h, then continue pouring into the beaker Add 0.3ml of propyltrichlorosilane, and finally place the sealed beaker in a water bath and stir for 2.5 hours, then take out the sponge ball and drain it for later use;

[0053] Step 4: ...

Embodiment 3

[0061] This embodiment provides a method for preparing a superhydrophobic sponge ball, comprising the following steps;

[0062] Step 1: Take 2.7g of titanium dioxide particles and 45ml of ethyl acetate, respectively, and add them to the beaker in turn, and then place the beaker on an ultrasonic uniform device for dispersion and mixing to obtain a mixed solution for later use;

[0063] Step 2: Add 4.5 g of stearic acid into the mixed solution prepared in step 1 and stir, so that the stearic acid is completely dissolved to obtain the experimental solution and set aside;

[0064] Step 3: Put the sponge ball into the experimental solution prepared in step 2, then seal the mouth of the beaker with a plastic wrap, place the sealed beaker in a water bath and stir for 1.2 hours, then continue pouring into the beaker Add 0.9ml of propyltrichlorosilane, and finally place the sealed beaker in a water bath and stir for 3.5 hours, then take out the sponge ball and drain it for later use; ...

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Abstract

The invention relates to a preparation method of a super-hydrophobic sponge ball. The preparation method comprises the following steps: 1, respectively adding titanium dioxide particles and ethyl acetate into a beaker in sequence, dispersing and mixing; 2, adding stearic acid into the mixture obtained in the step 1, and stirring until the stearic acid is completely dissolved; 3, a sponge ball is taken and placed in the step 2, then a preservative film is used for sealing and stirring a beaker opening, propyl trichlorosilane continues to be added into the beaker for sealing and stirring, and the sponge ball is taken out and drained; and step 4, drying the drained sponge balls to obtain the super-hydrophobic sponge balls. The sponge ball obtained by the preparation method provided by the invention has excellent chemical stability and mechanical stability, can adapt to various different types of water-oil separation, and is wide in application environment; the preparation method is simple, convenient and low in cost, and has conditions and basis for realizing large-scale industrial production; the method plays an extremely positive and important role in construction of the sponge city.

Description

technical field [0001] The invention relates to the technical field of hydrophobic sponges, in particular to a superhydrophobic sponge ball and its preparation method and application. Background technique [0002] "Sponge city" is a new concept of urban stormwater management. It means that the city can respond to high and low water flexibly like a sponge, and then adapt to environmental changes and deal with rain disasters. It can also be called "water elastic city". When it rains, it absorbs, stores, infiltrates, and purifies water, and when necessary, "releases" the stored water and uses it to improve the function of the urban ecosystem and reduce the occurrence of urban floods. "Sponge city" not only vividly illustrates the city's high adaptability in coping with wet and dry water, but also stems from the high application of sponge in the construction of "sponge city". [0003] With the development of industrial economy, more and more oily pollutants, including spilled o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/30C02F101/32
Inventor 李宗晟佘年朱伟俊
Owner ZHUHAI TAIRAN TECH CO LTD
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