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Method for preparing flame-retardant core-shell acrylate resin coating and adhesive

A technology of acrylic ester and resin coatings, applied in the direction of ester copolymer adhesives, coatings, adhesive types, etc., can solve problems affecting practicability, etc., and achieve the effect of improving flame retardancy

Active Publication Date: 2015-08-26
东莞市项华电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, because acrylate resin is flammable, it affects its practicability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] (1) Add 14.4g of 4-hydroxybutyl acrylate, 26.2g of pentaerythritol and 18.7g of acetone into a 250ml three-necked bottle and mix them. Add 15.3g of phosphorus oxychloride dropwise to the three-necked bottle at 80°C for 2 hours. , keep warm at 80°C for 1.5h, then add 6.3g of melamine into the there-necked bottle, and react at 90°C for 2h to obtain the intumescent flame retardant A;

[0024] (2) Add the following raw materials in the following weight proportions to a 500ml three-necked bottle with stirring: 50g of water, 0.375g of sodium dodecylbenzenesulfonate, 0.125g of fatty alcohol polyoxyethylene ether, and 0.3g of methacrylic acid, and heat up to Stir at 60°C for 30 minutes; add A monomer, emulsify at 60°C for 45 minutes, heat up to 65°C and start to flow back water, heat up to 80°C and keep warm, add dropwise 5.2g of potassium persulfate solution dissolved in 5g of water, dropwise time 0.5 h, after the dropwise addition, react for 2 hours to obtain the core layer e...

example 2

[0029] (1) Add 14.4g of 4-hydroxybutyl acrylate, 26.2g of pentaerythritol and 18.7g of acetone into a 250ml three-necked bottle and mix them. Add 15.3g of phosphorus oxychloride dropwise to the three-necked bottle at 80°C for 2 hours. , keep warm at 80°C for 1.5h, then add 6.3g of melamine into the there-necked bottle, and react at 90°C for 2h to obtain the intumescent flame retardant A;

[0030] (2) Add the following raw materials in the following weight proportions to a 500ml three-necked flask with stirring: 60g of water, 2.1g of sodium dodecylbenzenesulfonate, 0.7g of fatty alcohol polyoxyethylene ether and 1.7g of methacrylic acid, and heat up to Stir at 60°C for 30 minutes, add A monomer, emulsify at 60°C for 45 minutes, heat up to 65°C and start to flow back water, heat up to 80°C and keep warm, add 5.6g of ammonium persulfate solution dissolved in 5g of water dropwise, and the dropping time lasts 1h, after the dropwise addition, react at 80°C for 3h to obtain the core ...

example 3

[0035] (1) Add 14.4g of 4-hydroxybutyl acrylate, 26.2g of pentaerythritol and 18.7g of acetone into a 250ml three-necked flask, mix them, add 15.3g of phosphorus oxychloride dropwise at 80°C, add dropwise for 2 hours, and keep warm at 80°C After reacting for 1.5 hours, add 6.3 g of melamine and react at 90°C for 2 hours to obtain the intumescent flame retardant A;

[0036] (2) Add the following raw materials in the weight ratio to the reaction vessel: 55g of water, 1.24g of sodium dodecylbenzenesulfonate, 0.41g of fatty alcohol polyoxyethylene ether and 1g of methacrylic acid; heat up to 60°C and stir for 30min Add monomer A, emulsify at 60°C for 45min; heat up to 65°C and start to flow back water; heat up to 80°C and keep warm, add dropwise 5.4g of N-(4-acetophenone)maleamide solution dissolved in 5g of water, dropwise Adding time is 45min, after the dropwise addition, react at 80°C for 2.5h to obtain the core layer emulsion;

[0037] The A monomer is formed by mixing 5.5 g ...

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Abstract

The invention relates to a method for preparing a flame-retardant core-shell acrylate resin coating and adhesive. The method comprises the following steps: adding water, an emulsifier and methacrylic acid into a reaction container, heating to the temperature of 60 DEG C, and stirring for 30 minutes; adding a monomer A, emulsifying for 45 minutes, heating to the temperature of 65 DEG C, introducing reflux water, heating to the temperature of 80 DEG C, preserving the temperature, dripping an initiator within 0.5-1 hour, and reacting for 2-3 hours after the dripping operation is finished, thereby obtaining core layer emulsion; simultaneously dripping a monomer B and an initiator into the obtained core layer emulsion within 0.5-1 hour, preserving the temperature to be 80 DEG C after the dripping operation is finished, and reacting for 2 hours; adding an inrumescent flame retardant, reacting at 80 DEG C for 2 hours, dripping a cross-linking agent, preserving the temperature to be 75-95 DEG C, reacting for 1-2 hours, cooling to the temperature of 50 DEG C, adding an emulsifier, semicarbazide and thiamine hydrochloride, reacting for 30 minutes, and adding ammonium hydroxide to regulate the pH value to 7-8, thereby obtaining the flame-retardant core-shell acrylate resin coating and adhesive. According to the obtained acrylate resin, the defect that the traditional acrylate resin is sticky when heated and fragile when cooled can be improved, and the flame-retardant property of the acrylate resin can be improved.

Description

technical field [0001] The invention relates to a method for preparing an acrylic resin, in particular to a method for preparing a flame-retardant core-shell type acrylic resin coating and an adhesive. 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. [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, instrumentation, construction, textiles, plastic products, wood products, papermaking and other industries. application. Acrylic resin coatings are developing in the direction of water-based, multi-functional and high-performance. [0004] Adhesive bonding (bonding, bonding, cementation, gluing) refers to the tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/14C08F230/02C08F212/08C09D133/08C09D133/12C09J133/08C09J133/12
Inventor 朱蕾
Owner 东莞市项华电子科技有限公司
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