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A kind of preparation method of superhydrophobic lipophilic material

A water-friendly and super-hydrophobic technology, which is applied in the field of preparation of super-hydrophobic and lipophilic materials, can solve problems such as uncontrollable infiltration uniformity, complex raw materials and ratios, and potential safety hazards, so as to improve hydrophobic and lipophilic properties and the effect of using persistence

Active Publication Date: 2022-03-25
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invented material has long-lasting hydrophobic and lipophilic properties, and the established oil-water separation system has a large processing capacity and high separation efficiency, but the overall service life and mechanical strength of the material are relatively poor, the raw materials and proportioning are complex, and the infiltration is uniform sex is not controllable
CN201610937856.0 invented a green method for preparing silver-zinc oxide nanosheet-graphene-nickel foam composite material, which solves the problem that metal particles may be exposed to the application environment during the application of graphene-based active metal particle composite materials without falling off problem, realize the comprehensive performance of graphene, zinc oxide and silver particles, and exert the synergistic effect of their respective excellent electrical, catalytic and sensing performances. Although this invention coats graphene on the nickel foam skeleton, the The growth and sheets of graphene are uncontrollable, and the reaction environment is at high temperature, which poses a safety hazard; and this invention is mainly used in the fields of catalysis and sensors

Method used

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  • A kind of preparation method of superhydrophobic lipophilic material
  • A kind of preparation method of superhydrophobic lipophilic material
  • A kind of preparation method of superhydrophobic lipophilic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Select a foamed nickel material with a void density of 110PPI and cut it into a sample of 5cm*5cm*0.3cm, wash it with anhydrous ethanol for 3 times, then with deionized water for 3 times, and ultrasonic vibration cleaning, each time for 10 minutes, at 50°C Dry down for later use;

[0033] (2) Weigh 0.25g of dopamine in 95ml of water, adjust the solution to pH 8.5 with 0.1M / L hydrochloric acid solution and Tris solution, add 5ml of graphene oxide aqueous solution with a concentration of 0.5mg / mL, and ultrasonically vibrate for 10min , under the condition of 25°C, magnetic stirring for 12h, vacuum filtration and drying at 75°C to obtain polydopamine-graphene oxide.

[0034] (3) Weigh 0.20g of dopamine in 100ml of water, adjust the solution to pH 8.5 with 0.1M / L hydrochloric acid solution and Tris solution, and add the polydopamine-graphene oxide obtained in step (2) into the prepared In the dopamine solution, ultrasound was applied for 20 minutes, and the prepared ni...

Embodiment 2

[0040] (1) Select a foam nickel material with a void density of 125PPI and cut it into a sample of 5cm*5cm*0.3cm, wash it 3 times with absolute ethanol, then wash it with deionized water 3 times, and clean it with ultrasonic vibration, each time for 10 minutes, at 50°C drying spare;

[0041] (2) Weigh 0.25g of dopamine in 93ml of water, adjust the solution to pH=8.5 with 0.1M / L hydrochloric acid solution and Tris solution, add 7ml of graphene oxide aqueous solution with a concentration of 0.5mg / mL, and ultrasonically vibrate for 15min , under the condition of 25° C., magnetic stirring for 11 h, vacuum filtration and drying at 65° C. to obtain polydopamine-graphene oxide.

[0042] (3) Weigh 0.20g of dopamine in 100ml of water, adjust the solution to pH=8.5 with 0.1M / L hydrochloric acid solution and Tris solution, and add the polydopamine-graphene oxide obtained in step (2) into the prepared In the dopamine solution, ultrasonically for 20 minutes, the prepared matrix material w...

Embodiment 3

[0048] (1) Select a titanium foam material with a void density of 130PPI and cut it into a sample of 5cm*5cm*0.3cm, wash it twice with anhydrous ethanol, then wash it twice with deionized water, and clean it with ultrasonic vibration, each time for 6 minutes, at 50°C drying spare;

[0049] (2) Weigh 0.18g of dopamine in 90ml of water, adjust the solution to pH=8.5 with 0.1M / L hydrochloric acid solution and Tris solution, add 10ml of graphene oxide aqueous solution with a concentration of 0.1mg / mL, and ultrasonically vibrate for 15min , under the condition of 25° C., magnetic stirring for 14 h, vacuum filtration and drying at 65° C. to obtain polydopamine-graphene oxide.

[0050] (3) Weigh 0.15g of dopamine in 100ml of water, adjust the solution to pH=8.5 with 0.1M / L hydrochloric acid solution and Tris solution, add the polydopamine-graphene oxide obtained in step (2) into the prepared In the dopamine solution, ultrasonic for 15 minutes, the prepared matrix material was immers...

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Abstract

The invention discloses a superhydrophobic and lipophilic material, which is composed of a matrix, a reinforcing body, a coupling agent and a nano-coating attached to the surface of the matrix. The matrix material is stainless steel mesh, nickel foam, copper foam or titanium foam One, the linking agent is dopamine, the nano-coating on the surface is one or both of hexadecylamine and octadecylamine; the reinforcing body is graphene. Its preparation method is also disclosed; the design concept of the present invention is to coat a layer of reduced graphene oxide on the wire mesh skeleton such as nickel foam, and the graphene as the reinforcement plays a role in improving the strength of the matrix material. The coating uses graphene oxide with a smaller particle size. After reduction, the graphene sheet is thinner, which can exert the excellent performance of graphene. In addition, graphene itself is hydrophobic, and nano-scale low surface energy substances are modified on its surface to realize the combination of the two properties and improve the hydrophobicity and lipophilicity and the durability of use.

Description

technical field [0001] The invention belongs to the field of material preparation, and in particular relates to a preparation method of superhydrophobic and lipophilic materials. Background technique [0002] Superhydrophobic and lipophilic materials have always been a hot topic of theoretical research by researchers. At the same time, their huge potential market prospects are also an important reason why social workers are extremely concerned. With the introduction and emphasis of scientific development theories such as the new century, new energy, and low-carbon environmental protection, the deep improvement and optimization of high-quality, high-efficiency superhydrophobic and lipophilic materials has become an important part of environmental protection. In the process of global industrialization, human beings are very dependent on oil and its derivative products. However, oil spills will inevitably occur during oil extraction and transportation, thereby polluting the env...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D17/022
CPCB01D17/0202
Inventor 冷金凤夏昌鹏王康王建荣
Owner UNIV OF JINAN
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