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High-alcohol-resistance water-based coating and preparation method thereof

A water-based coating, alcohol-resistant technology, used in coatings, epoxy coatings, polyurea/polyurethane coatings, etc. The effect of alcohol and paint film unchanged

Inactive Publication Date: 2022-07-08
纳电(广东)材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water-based coating technology is immature, and the price remains high, which is not accepted by consumers.
Today, mass production is still not possible. When cleaning products, alcohol or alcohol-containing cleaning solutions are usually used to scrub and disassemble. The usual water-based paints are not resistant to alcohol stimulation and corrosion, and are prone to discoloration. Because water-based Coatings have high requirements on the cleanliness of the surface of the material, because the surface tension of water is high, and dirt can easily cause shrinkage cavities in the coating film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high alcohol-resistant water-based coating, in parts by weight, comprises the following raw materials:

[0028] Polyurethane water-based resin 40 parts

[0029] 1 part benzoin ether

[0030] Tween 2 servings

[0031] 0.1 part of sodium perfluorooctanoate

[0032] Hydroxypropyl methylcellulose 0.1 part

[0033] Polysiloxane defoamer 0.2 part

[0034] Porphyrin-triethylamine quaternary ammonium salt 1 part

[0035] 150 parts of propylene carbonate (PC).

[0036] A preparation method of a high alcohol-resistant water-based coating, comprising the following steps:

[0037] S1. Prepare materials according to the raw material ratio of the water-based coating;

[0038] S2. Fully mix the water-based resin and the solvent, add a dispersant, and stir for 1 h at a stirring speed of 400 r / min to obtain a mixed solution A;

[0039] S3. Mix the mixture A with wetting agent, moisturizing agent, corrosion inhibitor and curing agent, and stir for 0.5 h at a stirring speed of 4...

Embodiment 2

[0042] A high alcohol-resistant water-based coating, in parts by weight, comprises the following raw materials:

[0043] 75 parts of epoxy water-based resin

[0044] 5 parts of benzophenone

[0045] 5 servings

[0046] Potassium perfluorooctanoate 0.2 part

[0047] 0.2 part of hydroxyethyl cellulose

[0048] 0.5 part of polymethylsiloxane defoamer

[0049] 2 parts of diamidopyridine quaternary ammonium salt

[0050] 200 parts of propylene glycol methyl ether (PM).

[0051] A preparation method of a high alcohol-resistant water-based coating, comprising the following steps:

[0052] S1. Prepare materials according to the raw material ratio of the water-based coating;

[0053] S2. Fully mix the water-based resin and the solvent, add a dispersant, and stir for 2 hours at a stirring speed of 500 r / min to obtain a mixed solution A;

[0054] S3. Mix the mixture A with wetting agent, moisturizing agent, corrosion inhibitor and curing agent, and stir for 1 hour at a stirring s...

Embodiment 3

[0057] A high alcohol-resistant water-based coating, in parts by weight, comprises the following raw materials:

[0058] 25 parts of acrylic water-based resin

[0059] 2 parts of benzoin ether, 2 parts of benzophenone

[0060] 3 parts of alkyl glycosides

[0061] 0.15 part perfluorooctanoic acid

[0062] 0.15 part of sodium carboxymethyl cellulose

[0063] 0.2 part of polysiloxane defoamer, 0.2 part of polymethylsiloxane defoamer

[0064]0.8 part of porphyrin-triethylamine quaternary ammonium salt, 0.6 part of diamidopyridine quaternary ammonium salt

[0065] 180 parts of dipropylene glycol butyl ether (DPNB).

[0066] A preparation method of a high alcohol-resistant water-based coating, comprising the following steps:

[0067] S1. Prepare materials according to the raw material ratio of the water-based coating;

[0068] S2. Fully mix the water-based resin and the solvent, add a dispersant, and stir at a stirring speed of 450 r / min for 1.5 h to obtain a mixed solution A...

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PUM

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Abstract

The invention discloses a high-alcohol-resistance water-based coating and a preparation method thereof.The water-based coating is prepared from, by weight, 40-75 parts of water-based resin, 1-5 parts of a curing agent, 2-5 parts of a dispersing agent, 0.1-0.2 part of a wetting agent, 0.1-0.2 part of a humectant, 0.2-0.5 part of a defoaming agent, 1-2 parts of a corrosion inhibitor and 150-200 parts of a solvent, and the coating is prepared after mixing, defoaming and curing; the coating prepared by the invention has excellent alcohol resistance, does not demould after being wiped by 95% alcohol for 100 times, and is resistant to water soaking, and a paint film is not changed.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high alcohol-resistant water-based coating and a preparation method thereof. Background technique [0002] Water-based paints include three types: water-soluble paints, water-dilutable paints, and water-dispersible paints (latex paints). Water-soluble coatings use water-soluble resins as film-forming materials, represented by polyvinyl alcohol and its various modifications, in addition to water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins. [0003] However, the water-based paint technology is immature and the price remains high, which is not accepted by consumers. To this day, it is still impossible to form mass production. When cleaning the product, alcohol or alcohol-containing cleaning solution is usually used to scrub, disassemble, and disassemble. The usual water-based coatings are not resistant to alcohol stimulation and cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D163/00C09D133/00C09D7/63C09D7/65
CPCC09D175/04C09D163/00C09D133/00C09D7/63C09D7/65C08L63/00C08L33/00C08L1/284C08L1/286C08K5/098C08K5/09
Inventor 朱向忠易安梁先文封力行王泽锐赖志强
Owner 纳电(广东)材料科技有限公司