Preparation method of super-hydrophobic oil-water separation material based on plant polyphenol-amino silicone oil modification

A technology of amino silicone oil and plant polyphenols, applied in water/sewage treatment, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of cumbersome preparation process, high cost, unsuitable for industrial production and application, and achieve preparation The process is simple, the operation is convenient, and the effect of many reactive active sites

Pending Publication Date: 2020-06-05
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the field of oil-water separation materials, there have been some literature and patent reports on superhydrophobic biomimetic functional surfaces based on dopamine surface modification, but there are still problems such as cumbersome preparation process, high cost, and unsuitability for industrial production and application.

Method used

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  • Preparation method of super-hydrophobic oil-water separation material based on plant polyphenol-amino silicone oil modification
  • Preparation method of super-hydrophobic oil-water separation material based on plant polyphenol-amino silicone oil modification
  • Preparation method of super-hydrophobic oil-water separation material based on plant polyphenol-amino silicone oil modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Clean the 300-mesh stainless steel mesh substrate and dry it for later use;

[0042] (2) Dissolve tannic acid in water, add sodium hydroxide to adjust the pH to 8.5, and obtain a tannic acid solution with a mass concentration of tannic acid of 2%; dissolve ferric chloride in water to obtain a mass concentration of iron ions of 1 % iron ion solution; disperse amino silicone oil (average molecular weight 100000, ammonia value 0.6) in water to obtain an aqueous dispersion of amino silicone oil with a mass concentration of 3%;

[0043] (3) Soak the dried stainless steel mesh substrate in the tannic acid solution for 5 minutes, then take it out and dry it; then soak it in the iron ion solution for 1 minute, take it out and dry it; repeat this process 5 times, then drying in a drying oven at 60°C for 12 hours to obtain a tannic acid-modified substrate;

[0044](4) Soak the tannic acid-modified substrate obtained in step (3) in an aqueous dispersion of amino silicone oil,...

Embodiment 2

[0051] (1) Clean the melamine sponge substrate and dry it for later use;

[0052] (2) Dissolve proanthocyanidins in water, add trishydroxymethylaminomethane to adjust the pH to 9, and obtain a proanthocyanidin solution with a mass concentration of proanthocyanidins of 5%; dissolve ferric chloride in water to obtain iron with a mass concentration of 2% iron ions Ionic solution; disperse amino silicone oil (average molecular weight 50,000, ammonia value 0.3) in water to obtain an aqueous dispersion of amino silicone oil with a mass concentration of 5%;

[0053] (3) Soak the dried melamine sponge substrate in the proanthocyanidin solution for 1 hour, then take it out and dry it; then soak it in the iron ion solution for 0.5 hours, take it out and dry it; ℃ in a drying oven for 6 hours to obtain a proanthocyanidin-modified substrate;

[0054] (4) Soak the proanthocyanidin-modified substrate obtained in step (3) in an aqueous dispersion of amino silicone oil, react at 70°C for 12 ...

Embodiment 3

[0061] (1) Clean the 300-mesh copper mesh substrate and dry it for later use;

[0062] (2) Dissolve catechin in water, add potassium hydroxide to adjust the pH to 8.8, and obtain a catechin solution with a mass concentration of 6% catechin; dissolve ferric chloride in water to obtain a mass concentration of iron ions of 3 % iron ion solution; disperse amino silicone oil (average molecular weight 500,000, ammonia value 0.6) in water to obtain an aqueous dispersion of amino silicone oil with a mass concentration of 1%;

[0063] (3) Soak the dried copper mesh substrate in the catechin solution for 2 minutes, take it out and dry it; then soak it in the iron ion solution for 5 minutes, take it out and dry it; repeat this process 8 times, and then drying in a drying oven at 100°C for 2 hours to obtain a catechin-modified substrate;

[0064] (4) Soak the catechin-modified substrate obtained in step (3) in an aqueous dispersion of amino silicone oil, react at 75°C for 32 hours, take ...

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Abstract

The invention discloses a preparation method of a super-hydrophobic oil-water separation material based on plant polyphenol-amino silicone oil modification. The super-hydrophobic oil-water separationmaterial is prepared by utilizing reactions between catechol groups and derivative groups of natural polyphenol substances and groups (amino and the like) of amino silicone oil. The whole reaction process is carried out in a water solution, and the method has the characteristics of low cost, no pollution, simple preparation process, wide raw material source, and the like. The prepared super-hydrophobic oil-water separation material has a good separating performance on oil substances, is low in treatment cost and simple and convenient to operate, and can be recycled for multiple times.

Description

technical field [0001] The invention relates to a preparation method of an oil-water separation material, in particular to a preparation method of a superhydrophobic oil-water separation material modified based on plant polyphenol-amino silicone oil. Background technique [0002] With the massive discharge of oily sewage in production and life and the frequent occurrence of oil spill accidents at sea, oil pollution in water has become a major problem that endangers human health and environmental safety. In order to maintain a good ecological environment and human health, and protect limited water resources, the effective separation of oily sewage has become an urgent problem to be solved. In recent years, with the rapid development of nano and bionic technologies, people have systematically studied and understood the relationship between solid surface microstructure and wettability, and functional materials based on super-wetting properties have pointed out new research for ...

Claims

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Application Information

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IPC IPC(8): B01J20/30B01J20/22B01J20/28C02F1/28C02F101/32C02F103/08
CPCB01J20/22B01J20/02B01J20/28033B01J20/28011C02F1/285C02F2101/32C02F2103/08
Inventor 彭新艳刘云鸿杨大鹏卓东贤冯以胧胡磊
Owner QUANZHOU NORMAL UNIV
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