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Preparation method of epoxy polyamide coating

A technology of epoxy polyamide and coating, which is applied in the direction of epoxy resin coating, anti-corrosion coating, coating, etc., can solve the problem of excessive content, and achieve the effect of good alkali resistance and good adhesion

Inactive Publication Date: 2018-02-02
ANQING HONGTAI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the deficiencies in the prior art, and provides a kind of epoxy polyamide paint, to solve the problem of benzene, toluene, xylene, ethylbenzene, halogenated hydrocarbon, formaldehyde and the high content of volatile organic compounds in the existing paint. and formaldehyde polymers and heavy metals such as lead, cadmium, chromium, and mercury compounds exceed the technical problem. The epoxy polyamide coating disclosed by the invention is an environmentally friendly, non-toxic and harmful substance, and has excellent adhesion , chemical corrosion resistance, good alkali resistance coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 discloses a kind of preparation method of epoxy polyamide coating, comprises following preparation steps:

[0021] Step 1, preparation of paint primer

[0022] Introduce nitrogen into the reaction kettle to exhaust the air, then add epoxy resin, acetone, methyl isobutyl ketone, silane coupling agent and dispersant binary copolymer of sodium acrylate and isopropyl acrylate to the reaction kettle, adjust the speed Stir at 100r / min for 0.5 hours, then add ethylene glycol ethyl ether, amide-modified hydrogenated castor oil and butanol in sequence, heat up to 60°C, keep stirring at 120r / min for 0.5 hours; then add oxidation Iron red, talcum powder and binder titanium dioxide, the temperature is controlled at 40-50°C, the speed is adjusted to 200r / min, and the stirring is continued for 1 hour. After standing and cooling for 3 hours, filter, and the filtrate obtained by filtering is the paint primer, and then the prepared The obtained paint primer is added into a...

Embodiment 2

[0030] Embodiment 2 discloses a kind of preparation method of epoxy polyamide coating, comprises following preparation steps:

[0031] Step 1, preparation of paint primer

[0032] Introduce nitrogen into the reaction kettle to exhaust the air, then add epoxy resin, acetone, methyl isobutyl ketone, silane coupling agent and dispersant binary copolymer of sodium acrylate and isopropyl acrylate to the reaction kettle, adjust the speed Stir at 120r / min for 1 hour, then add ethylene glycol ether, amide-modified hydrogenated castor oil and butanol in sequence, heat up to 50-60°C, keep stirring at 100r / min for 0.5 hours; then pour into the reaction kettle Add iron oxide red, talc powder and titanium dioxide as a binder, control the temperature at 40-50°C, adjust the speed to 250r / min and stir continuously for 1.5 hours, let it cool for 3 hours and then filter, the filtrate obtained by filtering is the paint primer, and then Put the prepared paint primer into a horizontal sand mill t...

Embodiment 3

[0037] Embodiment 3 discloses a kind of preparation method of epoxy polyamide coating, comprises following preparation steps:

[0038] Step 1, preparation of paint primer

[0039]Introduce nitrogen into the reaction kettle to exhaust the air, then add epoxy resin, acetone, methyl isobutyl ketone, silane coupling agent and dispersant binary copolymer of sodium acrylate and isopropyl acrylate to the reaction kettle, adjust the speed Stir at 110r / min for 1 hour, then add ethylene glycol ether, amide-modified hydrogenated castor oil and butanol in sequence, heat up to 55°C, keep stirring at 110r / min for 0.5 hours; then add oxidation Iron red, talc powder and binder titanium dioxide, the temperature is controlled at 50°C, the speed is adjusted to 250r / min, and the stirring is continued for 1.5 hours. After standing and cooling for 3 hours, filter, and the filtrate obtained by filtering is the paint primer, and then the prepared The paint primer is added to a horizontal sand mill t...

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Abstract

The invention discloses a preparation method of an epoxy polyamide coating. The preparation method comprises the following steps: introducing nitrogen into a reaction kettle, adding epoxy resin, acetone, methyl isobutyl ketone, a silane coupling agent and a dispersant, stirring above added substances for 0.5-1 h, sequentially adding ethylene glycol ethyl ether, amide modified hydrogenated castor oil and butanol, heating the obtained mixture to 50-60 DEG C, and stirring the heated mixture for 0.5 h; adding iron oxide red, talcum powder and an adhesive, continuously stirring the obtained mixturefor 1-1.5 h, standing the stirred mixture to cool the stirred mixture, filtering the cooled mixture to obtain a filtrate which is a coating primer, and dispersing the prepared coating primer until the fineness is less than 50 [mu]m; and adding polyamide, ether, a polyvinyl acetate emulsion, an antiseptic, an emulsifier and an antifoaming agent, and stirring the obtained mixture for 2-3 h to prepare the epoxy polyamide coating. The epoxy polyamide coating prepared in the invention solves a technical problem that the content of toxic and harmful substances in existing coatings exceeds a standard, and has the advantages of excellent adhesion, good chemical corrosion resistance and good alkali resistance.

Description

technical field [0001] The invention relates to the field of coating preparation, in particular to a preparation method of epoxy polyamide coating. Background technique [0002] Coating refers to a type of liquid or solid material that can form a thin film on the surface of an object under certain conditions to protect, decorate or other special functions, such as insulation, rust prevention, mildew resistance, heat resistance, etc., due to early coatings Most of them use vegetable oil as the main raw material, so they are also called paints. Now synthetic resins have replaced vegetable oils, so they are called paints. Coatings are not liquid, and powder coatings are a large category of coatings. [0003] Coatings belong to organic chemical polymer materials, and the formed coating film belongs to the type of polymer compounds. According to the classification of modern chemical products, coatings belong to fine chemical products. Modern coatings are gradually becoming a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/63C09D7/65C08G59/44
CPCC09D163/00C08G59/44C08K2003/2241C08K2003/2272C08L2205/035C09D5/08C08L31/04C08K13/02C08K3/22C08K3/34
Inventor 王文耕
Owner ANQING HONGTAI NEW MATERIAL
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