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Preparation method of aqueous single-component quick-drying anticorrosive coating

An anti-corrosion coating, one-component technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of poor anti-corrosion performance and slow drying speed

Active Publication Date: 2016-11-02
DANDONG ANBANG PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of slow drying speed and poor anti-corrosion performance of water-based one-component coatings in the current market. No pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) From potassium silicate aqueous solution, sodium silicate aqueous solution, and lithium silicate aqueous solution, select a potassium silicate aqueous solution with a modulus of 3.0 and a solid content of 30%

[0021] (2) Select a silicone-acrylic emulsion with a fineness of 15 microns, a solid content of 50%, and a glass transition temperature of 35°C from resins such as silicone-acrylic emulsion, styrene-acrylic emulsion, and pure acrylic emulsion.

[0022] (3) Take 200g of silicone-acrylic emulsion into a glass cup, add 100g of deionized water, stir evenly with a disperser, then adjust the speed of the disperser to 500r / min, while dispersing, slowly and uniformly add silicon with a modulus of 3.0 80 g of potassium acid aqueous solution was dispersed for 15 minutes to prepare silicon modified water emulsion resin.

[0023] (4) Take 500ml stainless steel sand mill tank, add 100g water, and while dispersing, add 20g polymer dispersant, 75g iron oxide red, 25g zinc phosphat...

Embodiment 2

[0027] (1) From potassium silicate aqueous solution, sodium silicate aqueous solution, and lithium silicate aqueous solution, select a lithium silicate aqueous solution with a modulus of 3.0 and a solid content of 30%

[0028] (2) Select a silicone-acrylic emulsion with a fineness of 15 microns, a solid content of 50%, and a glass transition temperature of 35°C from resins such as silicone-acrylic emulsion, styrene-acrylic emulsion, and pure acrylic emulsion.

[0029] (3) Take 200g of silicone-acrylic emulsion into a glass cup, add 100g of deionized water, stir evenly with a disperser, then adjust the speed of the disperser to 500r / min, and add silicon with a modulus of 3.0 slowly and uniformly while dispersing 80 g of lithium acid aqueous solution was dispersed for 15 minutes to prepare silicon modified water emulsion resin.

[0030] (4) Take 500ml stainless steel sand mill tank, add 100g water, and while dispersing, add 20g polymer dispersant, 75g iron oxide red, 25g zinc phosphate...

Embodiment 3

[0034] (1) Choose a lithium silicate aqueous solution with a modulus of 2.8 and a solid content of 30% from potassium silicate aqueous solution, sodium silicate aqueous solution, and lithium silicate aqueous solution

[0035] (2) Select a silicone-acrylic emulsion with a fineness of 15 microns, a solid content of 50%, and a glass transition temperature of 18°C ​​from resins such as silicone-acrylic emulsion, styrene-acrylic emulsion, and pure acrylic emulsion.

[0036] (3) Take 200g of silicone-acrylic emulsion into a glass, add 100g of deionized water, stir evenly with a disperser, then adjust the speed of the disperser to 500r / min, while dispersing, add silicon with a modulus of 2.8 slowly and uniformly 80 g of lithium acid aqueous solution was dispersed for 15 minutes to prepare silicon modified water emulsion resin.

[0037] (4) Take 500ml stainless steel sand mill tank, add 100g water, while dispersing, add 20g polymer dispersant, 75g iron oxide red, 25g zinc phosphate, 50g talc...

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Abstract

The invention provides a preparation method of an aqueous single-component quick-drying anticorrosive coating, and belongs to the field of aqueous industrial coatings. The preparation method comprises the following steps: selecting an appropriate aqueous silicate solution and appropriate water emulsion resin, and reasonably matching the appropriate aqueous silicate solution and appropriate water emulsion resin to form a final film forming substance-silicon modified water emulsion resin; selecting wollastonite powder, barium sulfate and talcum powder as an extender pigment, zinc phosphate as an antirust pigment and iron oxide red as a coloring pigment, selecting a polymer material as a dispersant, uniformly dispersing the coloring pigment, the antirust pigment, the extender pigment and water, grinding the pigments and water to form a slurry, and adding the slurry to the silicon modified water emulsion resin while stirring; and uniformly dispersing the slurry to prepare the aqueous single-component quick-drying anticorrosive coating. A coating film produced by using the coating prepared through the preparation method has an impact resistance being greater than 50, flexibility of 1mm, adhesion of 1 grade and hardness being greater than 2H; and the coating film still has no bubbles or rusts in neutral salt mist 500h later.

Description

Technical field [0001] The invention belongs to the field of water-based industrial coatings, and relates to a method for preparing water-based one-component quick-drying anticorrosive coatings by using inorganic silicate aqueous solutions, water emulsion resins and the like. Background technique [0002] As air pollution becomes more and more serious, people's awareness of environmental protection is gradually strengthening. In order to survive, industries with high pollution and high energy consumption have mostly chosen to transform to low-pollution and high-efficiency industries. The traditional industrial coatings industry bears the brunt. Under the pressure of the state to levy a VOC emission tax, it has also intensified the rapid transformation from solvent-based products to water-based products. [0003] At present, there are mainly two main resins for the production of water-based industrial coatings: one is water-soluble resin, and the other is water-emulsified resin. Co...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D7/12C09D5/08
CPCC08K2201/014C09D5/084C09D7/61C09D7/70C09D143/04C08K13/04C08K7/28C08K2003/2272C08K2003/328C08K3/34C08K2003/3045
Inventor 蔡大安潘顺岭孙成姚娜李芳宇
Owner DANDONG ANBANG PAINT CO LTD