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A preparation method of underwater superoleophobic microgel/fiber composite

A fiber composite material and underwater super-oleophobic technology, applied in the field of functional materials, can solve problems such as poor mechanical strength

Active Publication Date: 2021-04-30
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength, low-cost, green and environmentally friendly microcoagulation material with underwater super-oleophobic properties for the poor mechanical strength of current underwater super-oleophobic materials and the lack of relying on high-cost templates to obtain micro-nano structures. Preparation method of glue / fiber composite material

Method used

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  • A preparation method of underwater superoleophobic microgel/fiber composite
  • A preparation method of underwater superoleophobic microgel/fiber composite

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A method for preparing a microgel / fiber composite with underwater superoleophobic properties, comprising the steps of:

[0038] 1) Dissolve 2-acrylamido-2-methylpropanesulfonic acid, N,N-methylenebisacrylamide and ammonium persulfate in water to obtain the first monomer solution, 2-acrylamido-2- The concentration of methylpropanesulfonic acid is 0.5 mol / L, the concentration of N,N-methylenebisacrylamide is 0.005 mol / L, and the concentration of ammonium persulfate is 0.005 mol / L;

[0039] 2) The first monomer solution obtained in step 1) was heated at 80°C for 1 hour to obtain poly 2-acrylamido-2-methylpropanesulfonic acid hydrogel, crushed, dried, and then ground into micro Gel powder, the size is 300-500 μm;

[0040] 3) Dissolve acrylamide, N,N-methylenebisacrylamide, and ammonium persulfate in water to obtain a second monomer solution, the concentration of acrylamide is 1.0 mol / L, and N,N-methylenebisacrylamide The concentration is 0.0005 mol / L, and the concentratio...

Embodiment 2

[0045] A method for preparing a microgel / fiber composite with underwater superoleophobic properties, comprising the steps of:

[0046] 1) Dissolve acrylamide, N,N-methylenebisacrylamide and sodium persulfate in water to obtain the first monomer solution, the concentration of acrylamide is 3 mol / L, N,N-methylenebisacrylamide The concentration is 0.03 mol / L, and the concentration of sodium persulfate is 0.03 mol / L;

[0047] 2) Heating the first monomer solution obtained in step 1) at 90°C for 2 hours to obtain a polyacrylamide hydrogel, crushing it, drying it, and grinding it into a microgel powder with a size of 10-30 μm;

[0048] 3) Dissolve sodium p-styrenesulfonate, N,N-methylene bisacrylamide, and sodium persulfate in water to obtain a second monomer solution, the concentration of sodium p-styrenesulfonate is 6.0 mol / L, N, The concentration of N-methylenebisacrylamide is 0.003 mol / L, and the concentration of sodium persulfate is 0.06 mol / L;

[0049] 4) Mix the microgel po...

Embodiment 3

[0053] A method for preparing a microgel / fiber composite with underwater superoleophobic properties, comprising the steps of:

[0054] 1) Dissolve acrylic acid, N,N-methylenebisacrylamide and potassium persulfate in water to obtain the first monomer solution, the concentration of acrylic acid is 1.75 mol / L, and the concentration of N,N-methylenebisacrylamide is 0.0175 mol / L, the concentration of potassium persulfate is 0.0175 mol / L;

[0055] 2) Heating the first monomer solution obtained in step 1) at 85°C for 1.5 hours to obtain polyacrylic acid hydrogel, crushing, drying, and then grinding into microgel powder with a size of 700-800 μm;

[0056] 3) Dissolve N-vinylpyrrolidone, N,N-methylenebisacrylamide, and potassium persulfate in water to obtain a second monomer solution, the concentration of N-vinylpyrrolidone is 3.5 mol / L, N,N- The concentration of methylenebisacrylamide is 0.00175mol / L, and the concentration of potassium persulfate is 0.035mol / L;

[0057] 4) Mix the m...

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Abstract

The invention relates to a preparation method of a microgel / fiber composite material with underwater superoleophobicity, comprising the following steps: preparing a first monomer solution, a crosslinking agent and an initiator into a first monomer solution; thermally initiating polymerization Forming the first monomer hydrogel; then drying the first monomer hydrogel and grinding it into microgel particles; preparing the second monomer, cross-linking agent, and initiator into a second monomer solution; The gel particles and the second monomer solution are prepared into a mixed solution; finally, the mixed solution is poured on both sides of the fiber woven net base, and the microgel / fiber composite material is obtained after thermally initiating polymerization. The surface of the microgel / fiber composite material obtained by the method of the invention has a micro-nano composite rough structure, so that it has excellent underwater superoleophobic properties and anti-oil adhesion properties. At the same time, the composite structure of the double-network microgel layer and the fiber substrate makes the material have high mechanical strength, which can be applied to the antifouling shell of ship hulls, underwater antifouling of bridges and other fields.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a method for preparing an underwater superoleophobic microgel / fiber composite material. Background technique [0002] With the increasingly serious marine oil pollution, devices and equipment such as ships, bridges, and offshore drilling platforms that have been immersed in seawater for a long time are also eroded by oil pollution, and corrosion and aging occur, which seriously affect their service life. Preparation of materials with superoleophobic properties is an effective means to deal with this problem. "Facilecreation of a super-amphiphobic coating surface with bionic microstructure" (2004, 16, 302-305) published in "Advanced Materials" and "Synthesis of stable super water- and oil-repellent Polythiophene films” (2006, 45, 2251-2254) two articles reported the modification of fluorine-containing long-chain alkanes on rough substrates to prepare materials with s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/26C08L33/24C08K7/14C08L25/18C08K7/06C08L39/06C08L33/02C08L77/00C08L77/10C08L33/20
CPCC08L25/18C08L33/02C08L33/24C08L33/26C08L39/06C08L2205/16C08K7/14C08K7/06C08L77/00C08L77/10C08L33/20
Inventor 薛众鑫李承睿卢雪柏良久陈厚
Owner LUDONG UNIVERSITY
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