Preparation method for graphene water-based paint and adhesive with improved light resistance

A water-based coating and graphene technology, applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of poor light resistance and wear resistance, achieve strong light resistance and adhesion, and improve the cost. Yellowing of the film and improvement of light resistance

Inactive Publication Date: 2014-10-15
GUANGZHOU XIANGHAI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, acrylate resins have poor light resistance and wear resistance, and the emulsion film is slightly yellow, so it needs to be modified to protect the safety of life and property

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] (1) Add 1g of graphene oxide, 1g of expandable graphite, 1g of 3-aminopropyltrimethoxysilane and 20g of water into a 50ml three-necked flask equipped with a stirrer, thermometer and condenser tube, the reaction temperature is 50°C, and stir After reacting for 2 hours, add 1 g of sodium sulfite, the reaction temperature is 45° C., and the reaction time is 3 hours to obtain a graphene solution grafted with 3-aminopropyltrimethoxysilane;

[0029] (2) Add 45g of water, 0.6g of sodium dodecylbenzenesulfonate, 0.2g of nonionic polyacrylamide, and 1.2g of acrylamide to a 250ml three-neck flask equipped with a stirrer, thermometer and condenser, and heat up to 40°C. Stir for 30 minutes, add monomer A, emulsify for 40 minutes, heat up to 75°C and start to flow back water, raise the temperature to 80°C, add 6.4g of potassium persulfate solution dissolved in 6g of water dropwise, dropwise for 1h, dropwise for 1h, then Add 1 g of 6β-hydroxy-4-ene-3-stigmasterone and 0.5 g of cantha...

example 2

[0034] (1) Add 1g of graphene oxide, 2g of expandable graphite, 3g of 2-[(2-aminoethyl)amino]zirconium ethoxide complex and 20g of water into a 50ml three-neck flask equipped with a stirrer, thermometer and condenser , the reaction temperature is 80°C, stirring and reacting for 7h, then adding 6g of sodium bisulfite, the reaction temperature is 65°C, and the reaction time is 6h, to obtain 2-[(2-aminoethyl)amino]ethanol zirconium complex grafted graphite Alkene solution;

[0035] (2) Add 85g of water, 0.9g of sodium dodecylbenzenesulfonate, 0.3g of nonionic polyacrylamide, and 3.0g of acrylamide to a 250ml three-neck flask equipped with a stirrer, thermometer and condenser, and heat up to 40°C. Stir for 30 minutes, add A monomer, emulsify for 70 minutes, heat up to 75°C and start to flow back water, raise the temperature to 80°C, add 7.8g of ammonium persulfate solution dissolved in 7g of water dropwise, dropwise for 2h, dropwise for 2h, and then Add 3 g of 6β-hydroxy-4-ene-3-...

example 3

[0040] (1) Add 1g of graphene oxide, 1.5g of expandable graphite, 1.5g of polyethylene glycol trimethoxysilylpropyl ether and 20g of water into a 50ml three-necked flask equipped with a stirrer, thermometer and condenser tube, and the reaction temperature is 65°C, stirred for 4.5h, then added 3.5g of ephedrine hydrochloride, the reaction temperature was 55°C, and the reaction time was 4.5h to obtain a graphene solution grafted with polyethylene glycol trimethoxysilylpropyl ether;

[0041] (2) Put 65g of water, 0.75g of sodium dodecylbenzenesulfonate, 0.25g of non-ionic polyacrylamide, and 2.1g of acrylamide into a 250ml three-neck flask equipped with a stirrer, thermometer and condenser, and heat up to 40°C. Stir for 30 minutes, add A monomer, emulsify for 55 minutes, heat up to 75°C and start to flow back water, raise the temperature to 80°C, add dropwise 7.1g of potassium monopersulfate solution dissolved in 6.5g of water, dropwise for 1.5h, dropwise After reacting for 1.5 h...

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Abstract

The invention relates to a preparation method for graphene water-based paint and adhesive with improved light resistance. The preparation method for the graphene water-based paint and adhesive with the improved light resistance includes that adding water, emulsifying agent and acrylic amide to a reaction vessel, heating to 40 degrees centigrade, stirring for 30 minutes, adding monomer A, emulsifying for 40 to 70 minutes, starting to fill reflux water after heating to 75 degrees centigrade, adding initiating agent for 1 to 2 hours after heating to 80 degrees centigrade, reacting for 1 to 2 hours after finishing adding, adding 6 beta-hydroxy-4-alkene-3-bean sterone and cantharidin, and stirring to react for 3 hours to obtain nuclear emulsion; simultaneously adding monomer B and triggering agent to the nuclear emulsion for 1 to 3 hours, stirring to react for 1 hour at 90 degrees centigrade after finishing adding, adding coupling agent grafted graphene solution and 3-methoxy-4-hydroxy mandelic acid, adding cross-linking agent, reacting for 2 to 3 hours at 70 to 85 degrees centigrade, cooling to 40 degrees centigrade, adding emulsifying agent, reacting for 70 minutes, adding sodium citrate, sodium borohydride and 2, 4-diamido-6-hydroxy pyrimidine, reacting for 1 hour at 80 degrees centigrade, and adding ammonia water to regulate the pH value to 7 to 8 to obtain the light-resistant water-based paint and adhesive. The preparation method for the graphene water-based paint and adhesive with the improved light resistance is capable of greatly improving the light resistance of acrylic resin and avoiding the disadvantage that the acrylic resin emulsion film is yellow.

Description

technical field [0001] The invention relates to a preparation method of water-based paint and adhesive, in particular to a preparation method for improving the light resistance of water-based paint and adhesive by graphene. Background technique [0002] Coatings and paints sprayed on the surface of internal and external walls, furniture, and metal appliances are in direct or indirect contact with human beings all the time. Toxic and harmful paints have always threatened people's health. Because the field of use is often exposed to sunlight, because the sun’s rays contain a large amount of ultraviolet light harmful to colored objects, its wavelength is about 290-460nm, these harmful ultraviolet light changes the color of the paint through chemical oxidation and reduction. [0003] The largest market for acrylic resin coatings is car paint. In addition, it is widely used in light industry, household appliances, metal household appliances, aluminum products, coil industry, inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/00C09D7/12C09J151/00C09J11/04C09J11/06C09J11/08C08F291/10C08F220/16C08F220/14C08F220/28C08F212/08C08F212/32
Inventor 朱蕾罗声王亚茜宋丽夏雪影
Owner GUANGZHOU XIANGHAI BIOTECH CO LTD
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