Method for preparing flame-retardant core-shell type waterborne acrylate resin coating

A water-based acrylic and ester resin technology, applied in coatings and other directions, can solve problems such as flammability and anti-wear properties, and achieve the effect of improvement.

Active Publication Date: 2014-10-08
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, acrylate resins are flammable and have poor wear resistance, so they need 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

[0020] (1) Add 42g of water, 0.15g of sodium dodecylbenzenesulfonate, 0.05g of coconut oil propylenediamine, and 0.4g of acrylic acid to a 250ml three-neck flask, heat up to 40°C, stir for 30min, add monomer A, and emulsify for 15min , raise the temperature to 70°C and start to flow back water, raise the temperature to 80°C for 2 hours, add dropwise 6.2g of potassium persulfate solution dissolved in 6g of water, add dropwise for 2h, react for 1h, then add 1g of amino acid manganese, stir and react for 1h at 80°C , add 1g of zirconium sulfate, adjust the pH to 4, add 0.2g of manganese acetate, stir and react at 60°C for 1~2h, and obtain the core layer emulsion;

[0021] The A monomer is formed by mixing 2 g of butyl acrylate, 4 g of methyl methacrylate, 2.5 g of ethyl acrylate, and 1.5 g of 2-hydroxyethyl acrylate;

[0022] (2) Add B monomer and 6.2 g of potassium persulfate solution dissolved in 6 g of water to the nuclear layer emulsion obtained in step (1) at the same time, ...

example 2

[0025] (1) Add 68g of water, 1.5g of sodium dodecylbenzenesulfonate, 0.5g of coconut oil propylenediamine, and 3.2g of acrylic acid into a 250ml three-neck flask, raise the temperature to 40°C, stir for 30min, add monomer A, and emulsify for 45min , raise the temperature to 70°C and start flowing water back, raise the temperature to 80°C for 2 hours, add 6.6g of ammonium persulfate solution dissolved in 6g of water dropwise, add dropwise for 4h, react for 2h, then add 4g of amino acid manganese, stir and react for 4h at 80°C , add 2g of aluminum sulfate, adjust the pH to 4, add 0.6g of manganese acetate, stir and react at 60°C for 2h, and obtain the core layer emulsion;

[0026] The A monomer is formed by mixing 8g of butyl acrylate, 6g of methyl methacrylate, 3.5g of ethyl acrylate, and 2.5g of 2-hydroxyethyl acrylate;

[0027] (2) Add B monomer and 6.5 g of ammonium persulfate solution dissolved in 6 g of water to the nuclear layer emulsion obtained in step (1) at the same t...

example 3

[0030] (1) Add water 55g, sodium dodecylbenzenesulfonate 0.82, coconut oil propylenediamine 0.28g, acrylic acid 1.8g into a 250ml three-neck flask, heat up to 40°C, stir for 30min, add A monomer, emulsify for 30min, Raise the temperature to 70°C and start flowing water back, raise the temperature to 80°C for 2 hours, add 6.4g of sodium persulfate solution dissolved in 6g of water dropwise, add dropwise for 3 hours, react for 1.5h, then add 2.5g of amino acid manganese, and stir at 80°C for reaction 2.5h, add 1.5g of titanium sulfate, adjust the pH to 4, add 0.4g of manganese acetate, stir and react at 60°C for 1.5h, and obtain the core layer emulsion;

[0031] The A monomer is formed by mixing 5g of butyl acrylate, 5g of methyl methacrylate, 3g of ethyl acrylate, and 2g of 2-hydroxyethyl acrylate;

[0032] (2) Add monomer B and 6.35 g of sodium persulfate solution dissolved in 6 g of water dropwise to the core layer emulsion obtained in step (1), add dropwise for 2 hours, stir...

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PUM

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Abstract

The invention relates to a method for preparing a flame-retardant core-shell type waterborne acrylate resin coating. The method comprises the following steps of adding water, an emulsifier and acrylic acid, raising the temperature to 40 DEG C, stirring for 30 minutes, adding a monomer A, emulsifying for 15-45 minutes, raising the temperature to 70 DEG C, starting to introduce recirculation water, raising the temperature to 80 DEG C, reacting for 2 hours, dropwise adding an initiator for 2-4 hours, and reacting for 1-2 hours; adding manganese amino acid, stirring and reacting for 1-4 hours at 80 DEG C, adding a metal salt to adjust the pH value to be 4, adding manganese acetate, stirring and reacting for 1-2 hours at 60 DEG C to obtain a core layer emulsion; simultaneously dropwise adding a monomer B and an initiator into the core layer emulsion for 1-3 hours, stirring and reacting for 3 hours at 70-85 DEG C, adding a crosslinking agent, reacting for 1-3 hours at 70-90 DEG C, cooling to 40 DEG C, adding molybdenum di(2-ethylhexyl)phosphorodithioate and an emulsifier, reacting for 40 minutes, adding the material B, stirring and reacting for 1-3 hours at 65-85 DEG C and adding aqueous ammonia to adjust the pH value to be 7-8 to obtain the flame-retardant core-shell type waterborne acrylate resin coating. By virtue of the preparation method, the flame resistance of the acrylate resin can be greatly improved and the shortcoming of yellowing of a traditional acrylate resin film can also be improved.

Description

technical field [0001] The invention relates to a preparation method of water-based acrylic resin, in particular to a preparation method of flame-retardant core-shell type water-based acrylic resin coating. Background technique [0002] Compared with traditional solvent-based coatings, water-based coatings have the advantages of low price, safe use, saving resources and energy, and reducing environmental pollution and public nuisance, so it has become the main direction of the current development of the coatings industry. Water-based acrylic resin coatings are the fastest-growing and most diverse non-polluting coatings among water-based coatings. [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, molecular compound plastic products, wood products, papermaking and other industries. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F212/08C08F2/44C09D133/12C09D133/08C09D7/12
Inventor 朱蕾罗声王亚茜宋丽夏雪影
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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