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A biomimetic oil-water separation material with functions of antifouling, sterilization and dye adsorption and preparation method thereof

A technology for separating materials and biomimetic oil, which is applied in the field of preparation of biomimetic oil-water separation materials, can solve the problems of weak bonding and easy damage of the coating, and achieves the effect of rapid and effective separation and good stability.

Active Publication Date: 2020-05-29
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface coating materials prepared by the general dip coating method often have shortcomings such as weak coating bonding and easy damage. How to improve the firmness and durability of the coating is one of the issues facing the preparation and application of oil-water separation materials.

Method used

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  • A biomimetic oil-water separation material with functions of antifouling, sterilization and dye adsorption and preparation method thereof
  • A biomimetic oil-water separation material with functions of antifouling, sterilization and dye adsorption and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of polymer

[0026] Add 60g of polyether macromonomer TPEG2400, 1.86g of methacryloxypropyltrimethoxysilane (KH570), 2.1g of methacryloxyethyltrimethylammonium chloride and 52g of Deionized water was stirred at room temperature to dissolve the macromonomer, and 0.69 g of hydrogen peroxide (30 wt %) was added. After stirring for 15 minutes, add liquids A and B dropwise at a constant speed (liquid A is an aqueous solution prepared from 7.56 g of acrylic acid and 5 g of deionized water; liquid B is 0.36 g of 3-mercaptopropionic acid, 0.43 g of vitamin C and 12 g of deionized water prepared aqueous solution). Add liquid A dropwise for 2.5h, add liquid B dropwise for 3.0h, and keep warm for 1.5h after the dropwise addition is completed. After the reaction, add 30wt% NaOH solution to neutralize to pH 6-7, replenish water until the solid content is 40%, and obtain light yellow viscous liquid which is the product polymer.

[0027] (2) Preparation of oil-water...

Embodiment 2

[0034] (1) Preparation of polymer

[0035] With embodiment 1.

[0036] (2) Preparation of oil-water separation material

[0037] Take the polymer viscous liquid and dopamine hydrochloride prepared in the above step (1), prepare mixed aqueous solutions with concentrations of 7.5wt% and 0.2wt% respectively, and use 30wt% NaOH solution to adjust the pH to 8-9. Soak cotton cloth in it, ultrasonically disperse for 20 minutes, dry naturally for 18 hours, wash with deionized water, soak and wash twice, and dry at 70°C for 4 hours to get the bionic oil-water separation with antifouling, sterilization and dye adsorption functions Material.

[0038] (3) Oil-water separation

[0039] With embodiment 1.

[0040] (4) Dye adsorption

[0041] With embodiment 1.

Embodiment 3

[0043] (1) Preparation of polymer

[0044] With embodiment 1.

[0045] (2) Preparation of oil-water separation material

[0046]Take the polymer viscous liquid and dopamine hydrochloride prepared in the above step (1), prepare mixed aqueous solutions with concentrations of 10wt% and 0.2wt% respectively, and use 30wt% NaOH solution to adjust the pH to 8-9. Immerse the sponge in it, ultrasonically disperse for 15 minutes, dry naturally for 12 hours, wash with deionized water, soak and wash for 3 times, and dry for 6 hours at 70°C for the second time to obtain a bionic oil-water separation with antifouling, bactericidal and dye adsorption functions Material.

[0047] (3) Oil-water separation

[0048] With embodiment 1.

[0049] (4) Dye adsorption

[0050] With embodiment 1.

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Abstract

The invention discloses a bionic oil-water separation material with antifouling, sterilization and dye adsorption functions and a preparation method of the bionic oil-water separation material. A matrix material is dipped in a mixed water solution of dopamine and specific polymer with a dip coating method, the polymer is fixed on the surface of a matrix through an oxidation self-polymerization reaction of dopamine, and the bionic oil-water separation material with the antifouling, sterilization and dye adsorption functions is obtained through washing and drying. The preparation method of the oil-water separation material is simple, green, environmentally friendly and good in stability, and the bionic oil-water separation material has multiple functions of fouling resistance, self-cleaning,dye adsorption, oil-water separation and the like and can be widely applied to the fields such as oil-water mixture separation, treatment of dye-containing oil sewage and the like.

Description

technical field [0001] The invention relates to a preparation method of a bionic oil-water separation material with functions of antifouling, sterilization and dye adsorption, and belongs to the technical field of organic-inorganic composite functional materials. Background technique [0002] The discharge of oily sewage and the occurrence of crude oil spill accidents put forward higher requirements for oil-water separation technology and materials. Utilizing the different interface effects of the special wettability of materials on oil and water to achieve oil-water separation has become an important breakthrough in promoting the development of oil-water separation technology. Compared with traditional oil-water separation materials, oil-water separation materials with special wettability have high efficiency. and high selectivity. [0003] On the premise of maintaining high oil-water separation efficiency, using general-purpose materials, simplifying the process, improvin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/02C08F283/06C08F220/06
CPCB01D17/02C08F283/065C08F220/06
Inventor 唐新德董福营徐静赵春丽王勤马丽霞
Owner SHANDONG JIAOTONG UNIV