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Epoxy anti-fouling material and preparation method and use of same

An epoxy-based, anti-fouling technology, applied in epoxy resin coatings, anti-fouling/underwater coatings, coatings, etc., can solve problems such as poor adhesion and poor mechanical properties

Inactive Publication Date: 2009-09-30
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials have disadvantages such as poor adhesion to the substrate and poor mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 10 g of polyethylene glycol into a three-neck flask equipped with a stirrer and a thermometer, dehydrate at 120°C for 2 hours, cool down to 60°C, and add 100ml of tetrahydrofuran. Then add 2.5g of diphenylmethyl diisocyanate (MDI), stir and react under nitrogen protection for 30-60min, add 50g of epoxy resin E-51 and 0.24g of dibutyltin dilaurate into the flask, heat up to 70°C, continue Stir the reaction for 3 to 5 hours. When in use, add 6g of curing agent DMP-30, mix evenly, cast and solidify, and form a film according to the conventional method. The surface of the obtained film has a microphase separation structure. The adsorption of the material to fibrinogen is lower than 80ng / cm -2 (pure epoxy resin adsorption 10000ng / cm -2 ), the adsorption of lysozyme is lower than 20ng / cm -2 (pure epoxy resin adsorption 600ng / cm -2 ), the adsorption of bovine serum albumin is lower than 20ng / cm -2 (pure epoxy resin adsorption 750ng / cm -2 ), indicating that the materi...

Embodiment 2

[0023] Add a total of 20 g of polysiloxane and polyethylene glycol into a three-necked flask equipped with a stirrer and a thermometer, and add 200 ml of tetrahydrofuran. Then 6g of diphenylmethyl diisocyanate (MDI) was added, stirred for 1h, and then 100g of epoxy resin E-20, 0.4g of stannous octoate were added to the flask, the temperature was raised to 80°C, and the reaction was continued for 3h. When in use, add 10 g of curing agent methyl tetrahydrophthalic anhydride, mix evenly, and then cast and solidify.

Embodiment 3

[0025] Add 10g of polyethylene glycol into a three-necked flask with a stirrer and a thermometer, dehydrate at 120°C for 2h, cool down to 60°C, then add 2.5g of diphenylmethyl diisocyanate (MDI), stir for 2h, and pour into the flask Add 48g of epoxy resin E-44 and 0.24g of dibutyltin dilaurate, raise the temperature to 70°C, and continue stirring for 3h. When in use, add low molecular weight polyamide 650# 18g and solvent xylene and n-butanol 200ml, mix well and then cast and solidify.

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PUM

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Abstract

The invention discloses an epoxy anti-fouling material and a preparation method and the use of the same. The method uses polyurethane prepolymer containing anti-fouling factors to modify epoxy resin and then forms a film through curing and cross-linking. A microphase separation surface structure is formed. The structure can give a full play of the anti-fouling function of the anti-fouling factors and take advantages of the characteristics of excellent adhesive force and high mechanical strength of the epoxy resin. The method for preparing the epoxy anti-fouling material has the advantages of simple process, readily available material, low cost and easy industrial production. The material has promising application prospect in the field of the preparation of anti-fouling paints and biological and medical material coatings.

Description

technical field [0001] The invention belongs to the technical field of antifouling materials and preparation methods thereof, and relates to an epoxy-based antifouling material, a preparation method and application thereof. Background technique [0002] Nonspecific protein adsorption is the root cause of poor biocompatibility of synthetic materials. In systems that come into contact with blood, such as implanted materials in vivo and medical polymer materials used in vitro (blood storage and transfusion, blood purification and separation, etc.), plasma proteins will quickly adsorb to the surface of the material and activate platelets Thrombosis forms, causing blood to clot. Protein adsorption is also a common phenomenon in the process of biochemical separation and purification. Separation membranes based on sieving effects (such as ultrafiltration membranes, hemodialysis membranes) preferably do not have protein adsorption. In addition, protein adsorption is the first and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K5/17C08K5/3445C08K5/18C08K5/09C08G59/14C09D163/00C09D5/16
Inventor 张广照马春风
Owner UNIV OF SCI & TECH OF CHINA
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