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Water-based fluoride varnish and preparation method thereof

A fluorine-containing coating, water-based technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of inconvenient construction on site, short service life, etc., and achieve the effect of excellent weather resistance

Inactive Publication Date: 2014-12-24
JIANGSU MARINE VICTORY COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are more researches on water-based fluorine coatings in China, mainly in the following three categories: 1. Water-based coatings that are cured by the reaction between hydroxyl and isocyanate. The advantage of this coating is that it can be cured at room temperature, and the curing time is relatively short. , the properties of the coating after curing are good, but the disadvantage is that the service life of this coating is short, which brings a lot of inconvenience to the construction site

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a water-based fluorine-containing coating, which includes the following components in terms of mass percentage: water-based fluorine-containing epoxy resin: 35%, superfine high-activity zinc powder with a particle size of <10 μm: 35%, water: 25% %, additives: 5%;

[0037] Among them, the water-based fluorine-containing epoxy resin is composed of the following components in parts by mass: bisphenol AF: 15 parts, epichlorohydrin: 13 parts, polyethylene glycol diglycidyl ether: 5 parts, ethylene glycol amine: 8 parts, acrylic acid: 8 parts;

[0038] The additives include the following components in parts by mass: sodium polyacrylate: 10 parts, diethylenetriamine: 20 parts, sodium bentonite: 10 parts, ethylene glycol: 5 parts, pH regulator: 1 part, 3- Aminopropyltriethoxysilane: 8 parts, modified polyester acrylate: 6 parts.

[0039] The preparation method of water-based fluorine-containing epoxy resin in the present embodiment is:

[0040] (1) S...

Embodiment 2

[0049] This embodiment provides a water-based fluorine-containing coating, which comprises the following components by mass percentage: water-based fluorine-containing epoxy resin: 40%, superfine highly active zinc powder with a particle size of <10 μm: 30%, water: 22 %, additives: 8%;

[0050] Among them, the water-based fluorine-containing epoxy resin is composed of the following components in parts by mass: bisphenol AF: 20 parts, epichlorohydrin: 10 parts, polyethylene glycol diglycidyl ether: 7 parts, ethylene glycol amine: 5 parts, acrylic acid: 5 parts;

[0051] The auxiliary agent contains the following components in parts by mass: ammonium salt: 15 parts, polyamide 650: 35 parts, polyvinyl alcohol: 5 parts, ethylene glycol: 10 parts, pH regulator: 3 parts, aminosilane: 5 parts Parts, modified polyester acrylate: 2 parts.

[0052] (1) Synthesis of fluorine-containing epoxy resin

[0053] Add bisphenol AF and propylene oxide into a three-necked flask equipped with a ...

Embodiment 3

[0061] This embodiment provides a water-based fluorine-containing coating, which comprises the following components by mass percentage: water-based fluorine-containing epoxy resin: 39%, superfine highly active zinc powder with a particle size of <10 μm: 34%, water: 20 %, additives: 7%;

[0062] Among them, the water-based fluorine-containing epoxy resin is composed of the following components in parts by mass: bisphenol AF: 17 parts, epichlorohydrin: 15 parts, polyethylene glycol diglycidyl ether: 8 parts, ethylene glycol amine: 10 parts, acrylic acid: 10 parts;

[0063] The additives include the following components in parts by mass: sodium polyacrylate: 13 parts, diaminodiphenylmethyl sulfone DDS: 28 parts, diatomaceous earth: 8 parts, ethylene glycol: 8 parts, pH regulator: 5 parts Parts, methacryloxysilane: 10 parts, modified polyester acrylate: 4 parts.

[0064] (1) Synthesis of fluorine-containing epoxy resin

[0065] Add bisphenol AF and propylene oxide into a three-...

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Abstract

The invention discloses water-based fluoride varnish. The water-based fluoride varnish comprises components as follows: water-based fluoride epoxy resin, zinc powder, water and additives, wherein the water-based fluoride epoxy resin comprises components as follows: bisphenol AF, epichlorohydrin, polyethylene glycol bisglycidyl ether, ethylene glycol amine and acrylic acid; the additives comprise components as follows: a dispersing agent, a curing agent, a thickening agent, a coalescing agent, a PH modifier, a silane coupling agent and a flatting agent. The invention further designs a preparation method of the water-based fluoride varnish. The method comprises steps as follows: dissolving the dispersing agent in the additives in water, then stirring the water-based fluoride epoxy resin and the rest components in the additives, then adding the zinc powder to obtain a pre-mixture, and adding a dispersing agent aqueous solution into the pre-mixture to prepare the water-based fluoride varnish. The water-based fluoride varnish has the excellent weather resistance and the acid and alkali corrosion resistance, the low friction property, the stain resistance and the ultraviolet-resistant ageing resistance, the preparation method is simple and easy to implement, and the preparation cost is low.

Description

technical field [0001] The invention belongs to the field of paint preparation, in particular to a water-based fluorine-containing paint and a preparation method thereof. Background technique [0002] Fluorine coatings are also known as fluorocarbon coatings, fluorocarbon paints, and fluororesin coatings, which refer to coatings whose film-forming substance is fluororesin. Compared with other types of coatings, fluorine coatings have excellent performance in many aspects due to the introduction of fluorine atoms with large electronegativity, small atomic radius, short bond length and large bond energy, such as good weather resistance, corrosion resistance properties, chemical resistance and unique low surface energy and surface self-cleaning properties. [0003] Nowadays, with the advancement of science and technology, people's research on fluorine coatings has realized that the molecular structure can be designed according to the needs, and functional groups such as hydrox...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/12
Inventor 郑化陈廷生刘小林
Owner JIANGSU MARINE VICTORY COATING
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