Preparing method of flame-retardant water-borne coating

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: 2014-11-12
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 resistan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

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

[0025] (2) Add 45 g of water, 0.4 g of sodium dodecyl benzene sulfonate, 0.2 g of polyisobutylene polysuccinimide, and 0.3 g of methacrylic acid to 250 ml of a three-necked flask, heat up to 50°C, stir for 25 min, add A Monomer, emulsify for 25 minutes, heat up to 75°C and begin to pass reflux water, heat up to 80°C and keep it for 1 hour, add 5.3g of potassium persulfate composite salt solution dissolved in 5g of water, dropwise for 1h, and complete the reaction. 4h, then add 1g of bis(2-ethylhexyl) molybdenum dithiophosphate, stir and react 1g at 70°C to obtain the core layer emulsion;

[0026] The A monome...

example 2

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

[0031] (2) Add 70 g of water, 1.2 g of sodium dodecyl benzene sulfonate, 0.6 g of polyisobutylene polysuccinimide, and 3.2 g of methacrylic acid to 250 ml of a three-necked flask, heat up to 50°C, stir for 25 minutes, and add A Monomer, emulsify for 45min, heat up to 75°C and start to pass reflux water, heat up to 80°C for 1h, add 5.4g of ammonium persulfate solution dissolved in 5g of water dropwise, drip for 4h, react for 5h, then add bis(2- Ethylhexyl) molybdenum dithiophosphate 4g, stirred and reacted for 4h to obtain the core layer emulsion;

[0032] The A monomer is a mixture of 8 g of butyl acrylate, 6 g ...

example 3

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

[0037] (2) Add 58 g of water, 0.8 g of sodium dodecyl benzene sulfonate, 0.4 g of polyisobutylene polysuccinimide, and 1.8 g of methacrylic acid to 250 ml of a three-necked flask. The temperature is increased to 50° C., stirred for 25 min, and A Monomer, emulsify for 35min, heat up to 75°C and start to pass reflux water, heat up to 80°C for 1h, add 5.35g of ammonium persulfate solution dissolved in 5g of water dropwise, drop time 2.5h, react for 4.5h, then add two ( 2.5 g of 2-ethylhexyl) molybdenum dithiophosphate, stirred and reacted for 2.5 hours, to obtain a nuclear layer emulsion;

[0038] The monomer A is a...

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PUM

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Abstract

The invention relates to a preparing method of flame-retardant water-borne coating. Water, emulsifier and methyl acrylic acid are added in, the temperature is raised to 50 DEG C, stirring is performed for 25 min, A monomers are added in, and emulsification is performed for 25 min to 45 min; backflow water is led in when the temperature is raised to 75 DEG C, heat preservation is performed when the temperature is raised to 80 DEG C, initiators are dropwise added, the drop time is 1 h to 4 h, and reaction is performed for 4 h to 5 h after dropping is finished; then, di(2-ethylhexyl) molybdenum dithiophosphate is added, stirring reaction is performed for 1 h to 4 h after dropping is finished, and nuclear layer emulsifier is obtained; B monomers and initiators are dropwise added into the obtained nuclear layer emulsifier, the drop time is 1 h to 3 h, stirring reaction is performed at the temperature of 70 DEG C to 85 DEG C for 2 h after the dropping is finished, then, sodium molybdate is added, stirring reaction is performed at the temperature of 75 DEG C to 85 DEG C for 1 h to 3 h, crosslinking agents are added, reaction is performed at the temperature of 70 DEG C to 85 DEG C for 1 h to 2 h, the temperature is lowered to 50 DEG C, dispersion liquid A, zinc dialkyl dithiophosphate and emulsifier are added, the reacting time is 40 min, reduction materials are added in, stirring reaction is performed at the temperature of 75 DEG C to 85 DEG C for 1 h to 3 h, the pH value is adjusted to 7 to 8 by adding ammonia water, and the flame-retardant water-borne coating is obtained. Due to the preparing method, the flame-retardant performance of resin films made from acrylic ester can be substantially improved, and the defect that traditional resin films made from acrylic ester becomes yellow is overcome.

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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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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