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Biomimetic oil-water separating material with antifouling and dye-adsorbing functions and preparation method of separating material

A technology for separation materials and bionic oil, which is applied in the field of preparation of bionic oil-water separation materials, can solve the problems of poor bonding and easy damage of coatings, and achieve rapid, effective separation and good stability

Active Publication Date: 2018-11-30
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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  • Biomimetic oil-water separating material with antifouling and dye-adsorbing functions and preparation method of separating material
  • Biomimetic oil-water separating material with antifouling and dye-adsorbing functions and preparation method of separating material

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) and 52g of deionized water into a 250mL four-neck flask, stir at room temperature to dissolve the macromonomer, and add 0.69g Hydrogen peroxide (30wt%). 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 a light yellow viscous liquid which is the product polymer.

[0027] (2) Preparation of oil-water separation material

[0028] Take th...

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 obtain a biomimetic oil-water separation material with antifouling and dye adsorption functions .

[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 at 70°C for 6 hours to obtain a bionic oil-water separation material with antifouling and dye adsorption functions .

[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 biomimetic oil-water separating material with antifouling and dye-adsorbing functions and a preparation method of the separating material. The method adopts a dip coating method, a substrate material is immersed in a mixed aqueous solution of dopamine and a copolymer, the copolymer is fixed on the surface of the substrate by utilizing an oxidation self-polymerization reaction of the dopamine, washing is performed, drying is performed, and therefore the biomimetic oil-water separating material with the antifouling and dye-adsorbing functions is obtained. The preparation method of the oil-water separating material disclosed by the invention is simple, green and environmentally friendly, has good stability, and a plurality of functions such as fouling resistance, self cleaning, dye adsorption and oil-water separation, and can be used in the fields of oil-water mixture separation and treatment of dye-containing oil sewage.

Description

technical field [0001] The invention relates to a preparation method of a bionic oil-water separation material with antifouling and dye adsorption functions, 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, improving stability, reduc...

Claims

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Application Information

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IPC IPC(8): B01D17/022C08F283/06C08F220/06C08F230/08C08F4/40
CPCB01D17/0202C08F4/40C08F283/065C08F220/06
Inventor 唐新德赵春丽王传栋董福营庞来学王宪朋
Owner SHANDONG JIAOTONG UNIV