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Method for curing and grafting amphoteric ion gel coat on external surface on material surface by ultraviolet

A zwitterionic, ultraviolet technology, applied in the direction of coatings, anti-corrosion coatings, paints containing biocide, etc., can solve the problems of cumbersome and difficult preparation methods, degradation of bonding performance and physical and mechanical properties, hindering application and development, etc., to achieve operational The effect of simple process, low cost and strong practicability

Inactive Publication Date: 2014-11-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have their disadvantages, such as the need to pretreat the surface of the modified substrate, the introduction of specific groups, and the preparation method is cumbersome and difficult, requiring specific equipment and instruments, unstable surface functional groups or zwitterions with high hydrophilicity Unfavorable factors such as the decrease in the cohesive properties and physical and mechanical properties of the copolymerized / blended matrix caused by the nature of the copolymer hinder its application and development.

Method used

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  • Method for curing and grafting amphoteric ion gel coat on external surface on material surface by ultraviolet
  • Method for curing and grafting amphoteric ion gel coat on external surface on material surface by ultraviolet
  • Method for curing and grafting amphoteric ion gel coat on external surface on material surface by ultraviolet

Examples

Experimental program
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Effect test

Embodiment 1

[0043] In a round bottom flask equipped with a separatory funnel, add 10g of γ-methacryloxypropyltrimethoxysilane (KH570), 20g of TEOS tetraethyl orthosilicate, 40g of water, and drop Add a mixed liquid of 0.001g of concentrated hydrochloric acid with a volume concentration of 37% and 30g of water, and the time for the dropwise addition is 1 minute. After the addition is completed, age at 0°C for 1 hour, and add 2-hydroxy - 2-methyl-1-phenyl-1-propanone is used as a photoinitiator and mixed uniformly to obtain an organic-inorganic hybrid transition layer solution.

[0044] A photocurable zwitterionic gel solution is prepared using a common dissolution method, which contains 30 g of N, N-dimethyl (methacryloyloxyethyl) aminopropanesulfonic acid inner salt (DMAPS), N, N-methylene Base bisacrylamide 30g, water 50g, ethanol 2g, photoinitiator 2-hydroxyl-4'-(2-hydroxyethoxyl)-2-methylpropiophenone accounted for 0.4% of the total mass of raw materials in this step.

[0045] Next, t...

Embodiment 2

[0048] In a round-bottomed flask equipped with a separatory funnel, add 50 g of vinyltrimethoxysilane (VTMS), 20 g of diethoxydimethylsilane (DDS), 1 g of water, and add 2 g of it dropwise at 0 ° C. A mixture of glacial acetic acid and 3g of water. The dropping time is 50 minutes. After the dropping is completed, age at 50°C for 100 hours. Add aroylphosphine oxide accounting for 4% of the total mass of raw materials in this step as a photoinitiator into the system, and mix well to obtain an organic-inorganic Hybrid transition layer solution.

[0049] Prepare a photocurable zwitterionic gel solution containing N,N-dimethyl-N-methacrylamidopropyl-N,N-dimethyl-N-propanesulfonic acid inner salt by common dissolution method 2g, ethylene glycol di(meth)acrylate 50g, hydroxyethyl methacrylate 5g, water 10g, methanol 40g, photoinitiator 4-(2-hydroxyethoxymethyl)benzophenone accounted for the Step 0.001% of the total mass of raw materials.

[0050] Next, the prepared organic-inorgan...

Embodiment 3

[0053] In a round bottom flask equipped with a separatory funnel, add 70 g of γ-methacryloxypropyl trimethoxysilane (KH570), 1 g of TEOS orthosilicate, γ-glycidyl etheroxypropyl trimethoxy Base silane 5g, water 1g, under the condition of 90 ℃, add dropwise the mixed liquid of 5g hydrochloric acid (37%) and 40g water. The dropping time is 5 hours, after the dropping is completed, aging at 100°C for 1000 hours, adding benzophenone accounting for 20% of the total mass of raw materials in this step as a photoinitiator in the system, and mixing evenly to obtain the organic-inorganic hybrid transition layer solution.

[0054] A light-curable zwitterionic gel solution is prepared by a common dissolution method, which contains 70 g of N, N-dimethyl (methacryloyloxyethyl) aminopropanesulfonic acid inner salt (DMAPS), tripropylene glycol diacrylic acid 1 g of ester, 2 g of acrylic acid, 70 g of water, 20 g of acetone, and the photoinitiator 2-hydroxy-4'-(2-hydroxyethoxy)-2-methylpropio...

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Abstract

The invention discloses a method for curing and grafting amphoteric ion gel coat on external surface on material surface by ultraviolet. According to the method, a layer of visible-light curable organic / inorganic hybrid translation layer including chemically reactive unsaturated duplet bond and photo-initiator is coated on the surface of a substrate to be modified, then a layer of visible-light curable gel solution including amphoteric ion monomer, polyenoid cross linking agent and photo-initiator is coated on the surface of the translation layer, and irradiation is carried out under ultraviolet, so as to obtain the gel coat having amphoteric ions. The visible-light curable organic / inorganic hybrid translation layer is prepared by adding a silane precursor, solvent and water in a reactor, dropping acidic catalyst at 0 DGE C to 100 DEG C, aging for 1-10000h at 0 DGE C to 100 DEG C, and then adding photo-initiator. The method has the following characteristics of easy implementation and low cost, and is suitable for the surface modification field of different materials comprising metal, stone, ceramic, glass, polymer, and the like.

Description

technical field [0001] The invention relates to a preparation method for constructing a bionic cell outer membrane amphoteric ion gel layer on the surface of a material. Coating materials can provide anti-bioadhesion function for related materials such as metal, stone, ceramics, glass and polymer materials, and are suitable for medical materials, biochemical industry, marine antifouling and other fields. Background technique [0002] The adsorption of bioadhesion on the surface of materials is a very common phenomenon that has drawn close attention from academia and industry. Bioadhesion is an interfacial behavior that is ubiquitous in nature and real life. In many applications, from biomedical devices to ships, anti-bioadhesion, that is, preventing non-specific biomolecules, microorganisms, etc. from attaching to surfaces is a great challenge. In many cases, poor biosorption can lead to many undesired consequences. For example, cell adsorption and proliferation caused by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D5/16C09D5/08
Inventor 刘云鸿李光吉罗熙雯陈志峰彭新艳
Owner SOUTH CHINA UNIV OF TECH
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