A kind of preparation method of flame-retardant water-based paint

A water-based paint and flame retardancy technology, applied in the field of water-based paint preparation, can solve problems such as flammability and anti-wear properties, and achieve the effect of improving hot stickiness and cold brittleness

Inactive Publication Date: 2016-03-02
惠州市正伟涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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

[0024] (1) Add 2g of diisooctyl dithiophosphoric acid molybdenum oxysulfide, 18g of water, 0.21g of hydrolyzed polymaleic anhydride and 0.11g of dodecyltriphenylphosphonium chloride into a 50mL beaker. 1. Under the condition of pH 6, add 0.8 g of molybdenum dialkyl dithiophosphate, and ultrasonically pulverize for 50 minutes to obtain dispersion A for later use;

[0025] (2) Add 45g of water, 0.4g of sodium dodecylbenzenesulfonate, 0.2g of polyisobutylene polysuccinimide, and 0.3g of methacrylic acid to a 250ml three-necked bottle, raise the temperature to 50°C, stir for 25min, and add A Monomer, emulsify for 25 minutes, heat up to 75°C and start to flow back water, heat up to 80°C and keep warm for 1 hour, add dropwise 5.3g of potassium hydrogen persulfate compound salt solution dissolved in 5g of water, dropwise for 1 hour, dropwise to complete the reaction After 4 hours, add 1 g of molybdenum di(2-ethylhexyl) dithiophosphate, stir and react 1 g at 70°C to obtain a core laye...

example 2

[0030] (1) Add 2g of diisooctyl dithiophosphate oxymolybdenum sulfide, 18g of water, 0.21g of hydrolyzed polymaleic anhydride and 0.11g of dodecyltriphenylphosphonium chloride into a 50mL beaker. 1. Under the condition of pH 6, add 0.8 g of molybdenum dialkyl dithiophosphate, and ultrasonically pulverize for 50 minutes to obtain dispersion A for later use;

[0031] (2) Add 70g of water, 1.2g of sodium dodecylbenzenesulfonate, 0.6g of polyisobutylene polysuccinimide, and 3.2g of methacrylic acid to a 250ml three-necked bottle, raise the temperature to 50°C, stir for 25min, and add A Monomer, emulsified for 45 minutes, heated up to 75°C and began to flow back water, raised to 80°C for 1 hour, added dropwise 5.4g of ammonium persulfate solution dissolved in 5g of water, added dropwise for 4 hours, reacted for 5 hours, then added di(2- Ethylhexyl) molybdenum dithiophosphate 4g, stirred and reacted for 4h to obtain the core layer emulsion;

[0032] The A monomer is formed by mixin...

example 3

[0036](1) Add 2g of diisooctyl dithiophosphoric acid molybdenum oxysulfide, 18g of water, 0.21g of hydrolyzed polymaleic anhydride and 0.11g of dodecyltriphenylphosphonium chloride into a 50mL beaker. 1. Under the condition of pH 6, add 0.8 g of molybdenum dialkyl dithiophosphate, and ultrasonically pulverize for 50 minutes to obtain dispersion A for later use;

[0037] (2) Add 58g of water, 0.8g of sodium dodecylbenzenesulfonate, 0.4g of polyisobutylene polysuccinimide, and 1.8g of methacrylic acid into a 250ml three-necked bottle, raise the temperature to 50°C, stir for 25min, and add A Monomer, emulsified for 35 minutes, heated up to 75°C and began to flow back water, raised the temperature to 80°C for 1 hour, added dropwise 5.35g of ammonium persulfate solution dissolved in 5g of water, added dropwise for 2.5h, reacted for 4.5h, then added di( 2.5 g of 2-ethylhexyl) molybdenum dithiophosphate, stirred and reacted for 2.5 hours to obtain the core layer emulsion;

[0038] T...

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PUM

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Abstract

The invention relates to a method for preparing a flame-retardant water-based paint. Add water, emulsifier, and methacrylic acid, heat up to 50°C, stir for 25 minutes, add monomer A, and emulsify for 25-45 minutes; heat up to 75°C and start flowing back water , heat up to 80°C, keep warm, add the initiator dropwise, the dropwise addition lasts for 1~4h, and react for 4~5h after the dropwise addition; then add di(2-ethylhexyl) molybdenum dithiophosphate, and stir after the dropwise addition React for 1~4h to obtain the core layer emulsion; add B monomer and initiator dropwise to the obtained core layer emulsion at the same time, dropwise for 1~3h, stir and react for 2h at 70~85°C after the dropwise addition, then add sodium molybdate, Stir and react at 75~85°C for 1~3h, then add crosslinking agent, react at 70~85°C for 1~2h, cool down to 50°C, add dispersion A, zinc dialkyldithiophosphate and emulsifier, After 40 minutes, add reducing materials, stir and react at 75-85°C for 1-3 hours, add ammonia water to adjust the pH value to 7-8, and obtain the flame-retardant water-based coating. The preparation method can not only greatly improve the flame retardancy of the acrylic resin, but also improve the yellowing defect of the traditional acrylic resin film.

Description

technical field [0001] The invention relates to a preparation method of a water-based paint, in particular to a preparation method of a flame-retardant water-based paint. 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] Water-based acrylic resins include acrylic resin emulsions, acrylic resin aqueous dispersions (also known as water-dilutable acrylic acid) and acrylic resin aqueous solutions. Emulsions are mainly synthesized by emulsifying oily ethylenic monomers in water under the initiation of water-based free radical initiators, while resin aqueous dispersions are synthe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/08C09D133/12C09D5/18C09D7/12C08F220/18C08F220/14C08F230/06C08F212/08C08F220/06
Inventor 段小宁罗声王亚茜宋丽夏雪影
Owner 惠州市正伟涂料有限公司
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