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Seawater desalination composite membrane for producing hydrogen-rich direct drinking water and preparation method of seawater desalination composite membrane

A direct-drinking water and composite membrane technology, applied in chemical instruments and methods, seawater treatment, water/sewage treatment, etc., can solve the problems of low hydrogen content, poor separation effect of seawater desalination, etc., and achieve the effect of improving the effect

Inactive Publication Date: 2020-10-02
长沙三思新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a seawater desalination composite membrane for producing hydrogen-rich direct drinking water and its preparation method to solve technical problems such as poor separation effect and low hydrogen content of seawater desalination

Method used

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  • Seawater desalination composite membrane for producing hydrogen-rich direct drinking water and preparation method of seawater desalination composite membrane
  • Seawater desalination composite membrane for producing hydrogen-rich direct drinking water and preparation method of seawater desalination composite membrane

Examples

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Effect test

Embodiment 1

[0041] A method for preparing a seawater desalination composite membrane for producing hydrogen-rich direct drinking water, the specific steps are as follows:

[0042] (1) Using 2-ethylhexyl acrylate and dimethyl styrene as main monomers, adding organically modified lithium-titanium dioxide-silicon dioxide nanomaterials, and polymerizing to obtain an acrylic resin;

[0043] (2) Then, stir and mix the acrylic resin with tetraethyl orthosilicate, butyl titanate, and N-methylpyrrolidone, add water, adjust the pH=5, stir the hydrolysis reaction, then add polyethersulfone micropowder and 1- Butyl-3-methylimidazolium tetrafluoroborate, stirring and dispersing evenly to obtain a slurry;

[0044] (3) coating the slurry on a smooth substrate, drying after rolling, curing, and peeling off to obtain a base film;

[0045] (4) Finally, evenly spray the surface paint on one side of the base film, let it stand for aging, and dry to obtain the described a kind of seawater desalination compos...

Embodiment 2

[0066] A method for preparing a seawater desalination composite membrane for producing hydrogen-rich direct drinking water, the specific steps are as follows:

[0067] (1) Using 2-ethylhexyl acrylate and dimethyl styrene as main monomers, adding organically modified lithium-titanium dioxide-silicon dioxide nanomaterials, and polymerizing to obtain an acrylic resin;

[0068] (2) Then, stir and mix the acrylic resin with tetraethyl orthosilicate, butyl titanate, and N-methylpyrrolidone, add water, adjust the pH=6, stir the hydrolysis reaction, then add polyethersulfone micropowder and 1- Butyl-3-methylimidazolium tetrafluoroborate, stirring and dispersing evenly to obtain a slurry;

[0069] (3) coating the slurry on a smooth substrate, drying after rolling, curing, and peeling off to obtain a base film;

[0070] (4) Finally, evenly spray the surface paint on one side of the base film, let it stand for aging, and dry to obtain the described a kind of seawater desalination compos...

Embodiment 3

[0091] A method for preparing a seawater desalination composite membrane for producing hydrogen-rich direct drinking water, the specific steps are as follows:

[0092] (1) Using 2-ethylhexyl acrylate and dimethyl styrene as main monomers, adding organically modified lithium-titanium dioxide-silicon dioxide nanomaterials, and polymerizing to obtain an acrylic resin;

[0093] (2) Stir and mix the acrylic resin with tetraethyl orthosilicate, butyl titanate, and N-methylpyrrolidone, add water, adjust the pH=5.5, stir the hydrolysis reaction, then add polyethersulfone micropowder and 1- Butyl-3-methylimidazolium tetrafluoroborate, stirring and dispersing evenly to obtain a slurry;

[0094] (3) coating the slurry on a smooth substrate, drying after rolling, curing, and peeling off to obtain a base film;

[0095] (4) Finally, evenly spray the surface paint on one side of the base film, let it stand for aging, and dry to obtain the described a kind of seawater desalination composite ...

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Abstract

The invention provides a seawater desalination composite membrane for producing hydrogen-rich direct drinking water and a preparation method of the seawater desalination composite membrane. The preparation method comprises the steps: firstly, stirring and hydrolyzing acrylic resin, tetraethyl orthosilicate, butyl titanate and N-methyl pyrrolidone, then adding polyethersulfone micro powder and 1-butyl-3-methylimidazole tetrafluoroborate, uniformly stirring and dispersing to obtain slurry, and preparing a base film from the slurry; uniformly spraying a surface coating on one surface of the basemembrane to finally prepare the seawater desalination composite membrane. The seawater desalination composite membrane has proper filter holes, allows water molecules to pass through and intercepts other impurity molecules to pass through, thereby greatly enhancing the seawater desalination separation effect and enable the obtained product to be directly drunk. In addition, hydrogen is properly generated while hydrogen in seawater is promoted to pass through the membrane, so that the product has relatively high hydrogen content.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a seawater desalination composite membrane for producing hydrogen-rich direct drinking water and a preparation method thereof. Background technique [0002] In recent years, the global water resource crisis has become increasingly serious, so people have turned their attention to seawater. Seawater reserves are huge on the earth. Desalination of seawater to extract freshwater can undoubtedly alleviate the current situation of scarcity of freshwater resources. There are two commonly used seawater desalination methods: distillation and osmotic membrane. [0003] The specific method of the distillation method is: first burn the seawater to a boil, evaporate the fresh water into steam, leave the salt at the bottom of the pot, and condense the steam into distilled water to obtain fresh water. Distillation is an ancient seawater desalination method, which consumes a lot ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/68B01D71/40B01D67/00C02F1/44B01D69/12C02F103/08
CPCB01D67/0002B01D69/12B01D71/40B01D71/68C02F1/445C02F2103/08Y02A20/131
Inventor 唐荣林
Owner 长沙三思新材料科技有限公司
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