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Universal and efficient material surface modification method

A surface modification and substrate surface technology, applied in the direction of coating, etc., can solve the problem of narrow substrate range, achieve the effect of mild conditions and optimized experimental conditions

Inactive Publication Date: 2017-07-21
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this method is that the scope of applicable substrates is relatively narrow

Method used

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  • Universal and efficient material surface modification method
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  • Universal and efficient material surface modification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: substrate adopts glass sheet

[0032] A universal and efficient material surface modification method, comprising the following steps:

[0033] Step 1, prepare a dopamine solution, weigh dopamine and dissolve it in Tris HCl solution, the pH of the solution is 8.5, and prepare a dopamine solution with a concentration of 1 mg / mL;

[0034] Step 2, substrate surface treatment,

[0035] The surface treatment method when the base material is a glass sheet: use a glass knife to divide the glass sheet into 1×1cm 2Wash small pieces in ultrapure water three times with ultrasound, each 20 minutes; then use 95% ethanol to wash twice with ultrasound, each 12 minutes; then use 5% NaOH to wash twice with ultrasound, each 20 minutes ;Finally, use distilled water to wash repeatedly, and store in ultrapure water for later use; the above-mentioned base materials must be dried with nitrogen before use to avoid the influence of dust;

[0036] Place the cleaned substrate in t...

Embodiment 2

[0045] Embodiment 2, base material adopts glass sheet

[0046] A universal and efficient material surface modification method, comprising the following steps:

[0047] Step 1, prepare a dopamine solution, weigh dopamine and dissolve it in Tris HCl solution, the pH of the solution is 8.5, and prepare a dopamine solution with a concentration of 2 mg / mL;

[0048] Step 2, substrate surface treatment,

[0049] The surface treatment method when the base material is a glass sheet: use a glass knife to divide the glass sheet into 1×1cm 2 Wash small pieces in ultrapure water three times with ultrasound, 10 minutes each; then wash twice with 95% ethanol with ultrasound, 8 minutes each; then wash twice with 5% NaOH with ultrasound, 10 minutes each ;Finally, use distilled water to wash repeatedly, and store in ultrapure water for later use; the above-mentioned base materials must be dried with nitrogen before use to avoid the influence of dust;

[0050] Place the cleaned substrate in t...

Embodiment 3

[0059] Embodiment 3, base material adopts glass sheet

[0060] A universal and efficient material surface modification method, comprising the following steps:

[0061] Step 1, prepare a dopamine solution, weigh dopamine and dissolve it in Tris HCl solution, the pH of the solution is 8.5, and prepare a dopamine solution with a concentration of 3 mg / mL;

[0062] Step 2, substrate surface treatment

[0063] The surface treatment method when the base material is a glass sheet: use a glass knife to divide the glass sheet into 1×1cm 2 Wash small pieces in ultrapure water three times with ultrasound, each time for 15 minutes; then use 95% ethanol to wash twice with ultrasound, each time for 10 minutes; then use 5% NaOH to wash twice with ultrasound, each time for 18 minutes ;Finally, use distilled water to wash repeatedly, and store in ultrapure water for later use; the above-mentioned base materials must be dried with nitrogen before use to avoid the influence of dust;

[0064] P...

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Abstract

The invention discloses a universal and efficient material surface modification method which comprises the following steps: 1) preparing a dopamine solution; 2) treating a substrate surface, washing, and preserving for later use; drying a substrate material in a blowing manner before being used; putting a substrate into the dopamine solution, and drying in the blowing manner for later use; 3) grafting a PEI (Polyethyleneimine) layer on the basis of a dopamine coating, preparing a Tris*HCl solution, and sealing for preservation; preparing a polyethyleneimine (PEI) solution for later use; putting the substrate coated by a PDA layer into the polyethyleneimine (PEI) solution, sealing the opening with a preservative film, stirring at room temperature for reaction, grafting the polyethyleneimine (PEI) layer, performing reaction, taking out by using tweezers, and blowing for later use; 4) inoculating an activated initiator; 5) performing surface initiation polymerization, immobilizing the initiator on surfaces of different substrates, and preparing different types of polymer brushes on the surfaces of different substrates by using a surface initiation polymerization method. The method has the advantages of being gentle and universal.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a universal and efficient material surface modification method. Background technique [0002] Materials play an important role in the development of society. With the development of society, the requirements for the surface properties of materials are becoming more and more refined. Universal and efficient surface modification methods have become a hot research field for scientists. The surface of the material is in direct contact with the outside, and the surface properties of the material directly determine and limit the application field of the material. Most materials cannot meet the required requirements in actual use, and the surface modification of the material is often required. Surface modification technology is a technology for treating the surface of materials, by using physical technology or chemical reaction to change the surface composition o...

Claims

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Application Information

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IPC IPC(8): C08J7/16C08J7/04C09D179/04C03C17/32C08L23/12
CPCC03C17/32C08J7/0427C08J7/16C08J2323/12C08J2479/04C09D179/04
Inventor 贾鹏翔卢瑜珂罗冬梅
Owner NORTHWEST UNIV
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