Waterborne epoxy fireproof coating as well as preparation method and application thereof

A fire-resistant coating, water-based epoxy technology, applied in fire-resistant coatings, epoxy resin coatings, anti-corrosion coatings, etc., can solve the problems of high viscosity of epoxy fire-resistant coatings, unsuitable mixing, secondary environmental pollution, etc., and achieve excellent corrosion resistance , Excellent protective effect, high fire prevention efficiency

Active Publication Date: 2021-09-28
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this kind of epoxy fireproof coating has high viscosity, short pot life and poor construction performance.
Special spraying equipment is required for spraying construction, which is bulky and unsuitable for transportation; during manual construction, the application period of construction and high viscosity should be considered, so it is not suitable for uniform mixing and low painting efficiency
The international trend of coating products is to pay more attention to green and environmental protection. However, traditional solvent-free epoxy fireproof coatings and high-solid epoxy fireproof coatings need to reduce viscosity and add organic diluents during use, resulting in secondary damage during construction. environmental pollution

Method used

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  • Waterborne epoxy fireproof coating as well as preparation method and application thereof
  • Waterborne epoxy fireproof coating as well as preparation method and application thereof
  • Waterborne epoxy fireproof coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0108] A component

[0109] The raw material and consumption that A component adopts in the embodiment 1 of table 1

[0110]

[0111] B component

[0112] Raw material and consumption that B component adopts among the table 2. embodiment 1

[0113]

[0114]

[0115] Synthesis of vinyl-epoxy emulsion in component A:

[0116] (1) Dissolve 220g of bisphenol F type epoxy resin in 86g of vinyl acetate and 198g of vinyl tertiary carbonate monomers, and completely dissolve the epoxy resin at a high speed of 600rad to form a premix

[0117] (2) Disperse 25g of emulsifier Calimulse AOS and 15g of emulsifier OP-15 in 400g of deionized water evenly under high-speed dispersion

[0118] (3) Slowly add the premix in (1) to (2) under high-speed dispersion to obtain a pre-emulsion

[0119] (4) prepare the aqueous solution of 5% ammonium persulfate of 20g

[0120] (5)N 2 Protection, under high-speed dispersion, add 25% of (3) into the reactor, after heating up to 50°C, add 20% o...

Embodiment 2

[0127] A component

[0128] Raw material and consumption that A component adopts in the embodiment 2 of table 4

[0129]

[0130]

[0131] B component

[0132] Raw material and consumption that B component adopts among the table 5. embodiment 2

[0133]

[0134] Synthesis of vinyl-epoxy emulsion in component A:

[0135] (1) Dissolve 235g of bisphenol A type epoxy resin in 112g of vinyl methacrylate and 196g of vinyl acrylate, under the high-speed dispersion of 2000rad, the epoxy resin is completely dissolved to form a premix

[0136] (2) Disperse 35g of emulsifier Calimulse PR and 40g of emulsifier TX-15 in 600g of deionized water evenly under high-speed dispersion

[0137] (3) Slowly add the premix in (1) to (2) under high-speed dispersion to obtain a pre-emulsion

[0138] (4) make the deionized aqueous solution of 7% tetrabutylammonium bromide of 24g

[0139] (5)N 2 protection, high-speed dispersion, add 40% of (3) into the reaction kettle, after heating to 40...

Embodiment 3

[0145] A component

[0146] Raw material and consumption that component A adopts in table 7. embodiment 3

[0147]

[0148] B component

[0149] Raw material and consumption that B component adopts among the table 7. embodiment 3

[0150] Polyamine modified curing agent 20 parts by weight homemade

[0151] Cellulose fiber 10 parts by weight Changzhou Zhuwei

[0152] Basalt fiber 10 parts by weight Changzhou Zhuwei

[0153] Synthesis of modified epoxy emulsion A in component A:

[0154] (1)N 2Protection, under high-speed stirring, gradually warming up to 80 ° C, completely dissolving 118g of 2,4-hexanediol in 212g of trimethylolethane triglycidyl ether, and then dropwise adding 12g of 5% tetrabutyl bromide Ammonium chloride N,N-dimethylformamide solution, keep the system temperature at 80-100°C, after 18 hours of polymerization, add 228g of bisphenol A and 110g of resorcinol, and continue to drop 10g of 5% four N,N-dimethylformamide solution of butylammonium bromide, ...

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PUM

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Abstract

The invention discloses a waterborne epoxy fireproof coating as well as a preparation method and application thereof. The waterborne epoxy fireproof coating is composed of a component A and a component B. The component A comprises a waterborne epoxy emulsion, a vinyl-epoxy emulsion, a carbon forming catalyst, a carbon forming agent, a foaming agent and a flame retardant; and the component B comprises a curing agent and refractory fibers. The water-based epoxy fireproof coating disclosed by the invention has the same excellent sealing performance as a solvent-free epoxy fireproof coating and a high-solid-content epoxy fireproof coating, has excellent corrosion resistance, UV irradiation resistance, water resistance and organic solvent resistance, and can be used in a severe outdoor environment. According to the fireproof coating, self-made emulsions are preferably selected, the structure of a film forming matter is optimized and adjusted, and fireproof efficiency is high. Meanwhile, water is selected as a diluent, so coating problems of an original epoxy fireproof coating are fundamentally solved, a water-based system is more environmentally friendly, and the coating belongs to a new-generation fireproof coating technology.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular to a water-based epoxy fireproof coating and its preparation method and application. Background technique [0002] Currently commercially available solvent-free epoxy fire retardant coatings or high-solid epoxy fire retardant coatings have excellent sealing and environmental resistance, acid resistance, alkali resistance, salt spray resistance, solvent oil resistance, aging resistance, and chemical resistance. The service life is more than 20 years. High fire performance, high paint film strength, strong anti-corrosion, widely used in outdoor and marine environment, petrochemical industry. At the same time, the epoxy fire retardant coating has a high strength of the expanded carbon layer, which can effectively resist the flame with thermal shock, and can provide effective fire protection in hydrocarbon fires and jet hydrocarbon fires (explosions). [0003] However, this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D151/08C09D5/18C09D7/61C09D5/08C09D7/63C09D7/65
CPCC09D163/00C09D5/185C09D7/61C09D5/08C09D7/63C09D7/65C08K2003/322C08K2003/2241C08K2003/323C08L2201/02C08L2205/16C08L51/08C08L1/02C08L23/0853C08L77/10C08L5/16C08K3/32C08K5/06C08K5/34928C08K5/50C08K7/10C08K3/22C08K3/346C08K5/053C08K5/34922C08K5/5397C08K7/08C08K3/34C08K5/5313C08K5/523
Inventor 李志士赵薇王明强王瑞华
Owner MARINE CHEM RES INST
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