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Pre-coating and bottom-coating integrated medicament for color-coated sheet, preparation method of pre-coating and bottom-coating integrated medicament, color-coated sheet and production method thereof

A technology of color-coated boards and medicaments, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve quality problems and other problems, achieve the effect of enriching the sense of fullness and shortening the process flow

Active Publication Date: 2022-08-09
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the above process, if you want to obtain the structure of the color-coated board with passivation layer + primer layer + topcoat layer + varnish layer, you need to go online for the second time, but the varnish will appear stains due to cleaning fluid when you go on-line for the second time and quality problems caused by the risk of overbaking

Method used

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  • Pre-coating and bottom-coating integrated medicament for color-coated sheet, preparation method of pre-coating and bottom-coating integrated medicament, color-coated sheet and production method thereof
  • Pre-coating and bottom-coating integrated medicament for color-coated sheet, preparation method of pre-coating and bottom-coating integrated medicament, color-coated sheet and production method thereof
  • Pre-coating and bottom-coating integrated medicament for color-coated sheet, preparation method of pre-coating and bottom-coating integrated medicament, color-coated sheet and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] A preparation method of a pre-bottom-integrated medicament for color-coated boards, comprising the following steps:

[0088] (1) Add 7.0g of vinyltriethoxysilane to 10g of 8% ethanol aqueous solution, after 30min, add 2.0g of fluorotitanic acid and 2.0g of fluorozirconic acid, and add 0.15g of hydrogen peroxide, put it on a high-speed stirrer Stir for 30min, and the stirring speed is 500r / min to obtain mixed solution 1;

[0089] (2) Add 10g of water-soluble polyurethane resin and 10g of water-soluble acrylic resin to 10g of 8% ethanol aqueous solution, stir evenly, then add 0.6g of ethylenediamine, stir on a high-speed mixer for 20min, and the stirring speed is 1200r / min, get the mixture two;

[0090] (3) Weigh 1g of dialkyldithiophosphoric acid-modified nano-silica, 1g of adhesion promoter TEGOAddBond LTH and 1.5g of 10% polyvinyl alcohol hydrolyzate, and condensed and refluxed at 75°C for 30min to obtain mixed solution three ;

[0091] (4) adding above-mentioned mi...

Embodiment 2

[0095] A preparation method of a pre-bottom-integrated medicament for color-coated boards, comprising the following steps:

[0096] (1) Add 7.0g of vinyltris(β-methoxyethoxy)silane to 10g of 7% ethanol aqueous solution, after 30min, add 1.5g of fluorotitanic acid and 1.5g of fluorozirconic acid, and add 0.15g of hydrogen peroxide, Put it on a high-speed stirrer and stir for 30min, and the stirring speed is 500r / min to obtain a mixed solution 1;

[0097](2) Add 11g of water-soluble polyurethane resin and 11g of water-soluble acrylic resin to 10g of 7% ethanol aqueous solution, stir evenly, and then add 0.5g of ethylenediamine and diethylenetriamine according to the mass ratio of 2:3 to mix and cure and put it on a high-speed stirrer to stir for 20min, and the stirring speed is 1200r / min to obtain mixed solution II;

[0098] (3) Weigh 0.8g of dialkyldithiophosphoric acid-modified nano-silica, 1.5g of adhesion promoter TEGOAddBond LTH and 2.5g of 10% polyvinyl alcohol hydrolyzat...

Embodiment 3

[0103] A preparation method of a pre-bottom-integrated medicament for color-coated boards, comprising the following steps:

[0104] (1) Add 3.5g vinyltriethoxysilane and 3.5g vinyltris(β-methoxyethoxy)silane to 10g 6% ethanol aqueous solution, after 30min, add 1.8g fluorotitanic acid and 1.8g fluorine Zirconic acid, add 0.15g hydrogen peroxide, put it on a high-speed stirrer and stir for 30min, and the stirring speed is 500r / min to obtain a mixed solution 1;

[0105] (2) Add 12g water-soluble epoxy resin and 12g water-soluble acrylic resin to 10g 6% ethanol aqueous solution diluent, stir evenly, then add 0.7g by mass ratio of ethylenediamine, diethylenetriamine and triethylenetetramine The mixed curing agent of 1:1:1 was placed on a high-speed agitator and stirred for 20 minutes, and the stirring speed was 1200r / min to obtain mixed solution II;

[0106] (3) Weigh 0.8g of dialkyldithiophosphoric acid-modified nano-molybdenum disulfide, 1.8g of adhesion promoter TEGOAddBond LTH...

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Abstract

The invention discloses a pre-primer combination agent for a color-coated sheet, a preparation method of the pre-primer combination agent, the color-coated sheet and a production method of the color-coated sheet. The pre-primer combination agent for the color-coated sheet comprises the following raw materials in percentage by weight: 20-30% of water-based resin; 0.5%-1.0% of a curing agent; 5%-10% of a silane coupling agent; 2%-4% of an inorganic corrosion inhibitor; 0.1%-0.3% of a complexing agent; 0.5%-1.5% of a friction modifier; 1%-4% of a polyvinyl alcohol solution; by using the pre-primer integrated medicament for the color-coated sheet provided by the invention, a passivation pretreatment process and a primer coating process can be integrated, an obtained coating can have the functions of a passivation layer and a primer layer at the same time, and the home appliance color-coated sheet produced by using the pre-primer integrated medicament has excellent corrosion resistance, oil stain resistance and chemical resistance; and the use requirements of household appliances can be met.

Description

technical field [0001] The invention belongs to the field of metal iron-based surface treatment, and relates to a pre-prime-in-one agent for color-coated boards and a preparation method thereof, as well as a color-coated board and a production method thereof, in particular to an energy-saving agent that can replace a passivation layer and a primer layer Environmental protection agent and preparation thereof, color-coated plate and production method thereof. Background technique [0002] With the improvement of people's living standards, home appliances have begun to pursue fashionable appearance. In the development of my country's home appliance industry, traditional home appliances are usually divided into two series: "black electricity" and "white electricity". The classification of home appliances has not kept pace with the progress of the times, and home appliances are entering the "color era". From the metallic color series that appeared a few years ago to the present ca...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D163/00C09D5/08C09D7/62C09D7/65C09D7/63
CPCC09D175/04C09D133/00C09D163/00C09D5/08C09D7/62C09D7/65C09D7/63C08L33/00C08L29/04C08K9/04C08K3/36C08K5/5425C08L75/04Y02A50/30
Inventor 钱婷婷张宜汤晓东施国兰许倩孙霖蔡明王占业
Owner MAANSHAN IRON & STEEL CO LTD
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