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A kind of patterned coating and preparation method thereof

A graphic and coating technology, applied in coatings, heparin coatings, alginic acid coatings, etc., can solve self-evident and non-corresponding problems, and achieve simple operation and environment-friendly effects

Active Publication Date: 2020-09-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] By dynamically adjusting the surface topology, the coating materials and technical means for the simple and precise preparation of the patterned surface can be realized. Although its importance is self-evident, there are still no corresponding examples.

Method used

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  • A kind of patterned coating and preparation method thereof
  • A kind of patterned coating and preparation method thereof
  • A kind of patterned coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Dissolve alginic acid and 4-azidoaniline hydrochloride in water at a molar ratio of 10:1, and react under the catalysis of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide for 50 hour, in the system, the concentration of alginic acid is 2 mg / mL, and the concentration of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide is 500 mg / mL to obtain photoactive modified alginic acid ;

[0038] Dissolve modified alginic acid in water to make a modified alginic acid aqueous solution with a concentration of 5 mg / mL and a pH value of 3.0; dissolve polyallylamine hydrochloride in water to make a concentration of 5 mg / mL and a pH value of 3.0. Polyallylamine hydrochloride aqueous solution with a value of 9.0;

[0039] (2) Soak the cleaned silicon substrate in polyallylamine hydrochloride aqueous solution for 10 minutes, take it out, and then soak it in modified alginic acid aqueous solution for 10 minutes. Repeat these two steps 50 times to obtain Coating materials with microstructure...

Embodiment 2

[0044](1) Polyacrylic acid and 4-azidoaniline hydrochloride with a molar molecular weight of 25000 are dissolved in water at a molar ratio of 10:1, and in 1-(3-dimethylaminopropyl)-3-ethylcarbodia The reaction was carried out under amine catalysis for 20 hours. In the system, the concentration of polyacrylic acid was 1 mg / mL, and 1-(3-dimethylaminopropyl)-3-ethyl carbon

[0045] The concentration of diimine is 100mg / mL, and the modified polyacrylic acid with photoactivity is obtained;

[0046] Dissolve modified polyacrylic acid in water to prepare a modified polyacrylic acid aqueous solution with a concentration of 1mg / mL and a pH value of 2.0; dissolve polyallylamine hydrochloride in water to prepare a concentration of 1mg / mL with a pH of Polyallylamine hydrochloride aqueous solution with a value of 10.0;

[0047] (2) After immersing the cleaned silicon chip substrate in polyallylamine hydrochloride aqueous solution for 30 minutes, take it out, then put it into modified poly...

Embodiment 3

[0052] (1) Dissolve hyaluronic acid and 4-azidoaniline hydrochloride in water at a molar ratio of 10:1, and react under the catalysis of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide For 40 hours, in the system, the concentration of hyaluronic acid was 2 mg / mL, and the concentration of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide was 500 mg / mL to obtain a modified hyaluronic acid;

[0053] Dissolve modified hyaluronic acid in water to prepare a modified hyaluronic acid aqueous solution with a concentration of 10 mg / mL and a pH value of 1.0; dissolve polyethyleneimine with a molar molecular weight of 100,000 in water to prepare a concentration of 10 mg / mL mL, an aqueous solution of polyethyleneimine with a pH value of 8.0;

[0054] (2) After immersing the cleaned silicon chip substrate in the polyethyleneimine aqueous solution for 20 minutes, take it out, and then put it into the modified hyaluronic acid aqueous solution and soak it for 20 minutes. After these two steps are r...

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Abstract

The invention discloses a graphical coating. A preparation method of the graphical coating comprises the following steps: 1, modifying polyanion with azide aniline; 2, soaking the substrate in polycation aqueous solution for 1-60 minutes and then taking the substrate out; 3, soaking the substrate in modified polyanion aqueous solution for 1-60 minutes and then taking the substrate out to completepreparation of the coating of one deposition period; 4, repeating the steps 2-3 to complete preparation of the coating of a plurality of deposition periods on the substrate so as to obtain the coatingmaterial, wherein the surface of the coating material is provided with a microstructure; 5, covering the surface of the coating material with a photomask provided with a graph, and irradiating UV-light to trigger local cross-linking reaction; and 6, placing the coating material after local cross-linking reaction in a humid environment or enabling the coating material after local cross-linking reaction to be in contact with water to obtain the graphical coating.

Description

technical field [0001] The invention relates to the field of preparation of patterned coatings, in particular to a dynamic coating capable of realizing patterned presentation and a preparation method thereof. Background technique [0002] Coating surface patterning is of great significance to the development of modern science and technology. Therefore, the preparation technology of patterned surface has attracted much attention for a long time. Whether it is in the field of chemistry, materials, or biology, it is necessary to achieve high functionality through surface patterning. The development of patterned surface preparation technology can be mainly divided into three types: etching, template replication, and surface chemical modification. These methods all have their own limitations. For example, the etching method often uses solvents for corrosion, which has great toxicity and operational risk; The experimental conditions are relatively harsh. The existing technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D1/18B05D7/24B05D3/06C08B37/04C08B37/08C08B37/10C09D105/04C09D139/00C09D133/02C09D105/08C09D105/10C09D125/18
CPCB05D1/18B05D3/067B05D7/24C08B37/0072C08B37/0075C08B37/0084C09D105/04C09D105/08C09D105/10C09D125/18C09D133/02C09D139/00
Inventor 计剑任科峰黄威嫔陈夏超
Owner ZHEJIANG UNIV
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