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Water-based heavy-duty single-component primer, as well as preparation method and application thereof

A heavy-duty anti-corrosion, single-component technology, applied in the field of chemical coatings, can solve the problems of long time consumption and high cost that do not belong to the conversion film anti-rust, so as to save the pre-treatment steps of the base material, prolong the anti-rust time, and increase the cost. The effect of closure performance

Inactive Publication Date: 2017-06-09
杨卫兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the process of painting is cumbersome, time-consuming and costly
In addition, because the working principle of the existing rust remover is to use the adsorption function of the corrosion inhibitor to the iron atoms on the newly generated steel / cast iron surface, cover the steel / cast iron surface, and block the contact between the iron atoms on the steel / cast iron surface and the air, thereby To achieve the corresponding purpose of anti-rust, but it does not belong to conversion coating anti-rust
Since the corrosion inhibitor is only adsorbed, its binding function is weak and it is easily damaged by solvents, hot flashes and other environments

Method used

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  • Water-based heavy-duty single-component primer, as well as preparation method and application thereof
  • Water-based heavy-duty single-component primer, as well as preparation method and application thereof
  • Water-based heavy-duty single-component primer, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] At room temperature, 20 parts by mass of deionized water, 0.2 parts of tert-butanol, 2 parts of propylene glycol methyl ether, 0.2 parts of propylene glycol, 0.2 parts of DF-60, 0.1 parts of bentonite, 8 parts of SZP-391, 5 1 part of talcum powder, 0.3 part of Rhodia DN-642, 7 parts of tannic acid, and 0.5 part of Hemings FX600 were added into a stainless steel tank under stirring, and the stirring speed was 1200 rpm. Then stir at a speed of 2500 rpm for half an hour, then use a grinder to grind the material to a fineness of less than 30 microns, and filter the obtained slurry to obtain a filtrate for future use. Take 40 parts of water-based polyurethane resin, add the above-mentioned filtered slurry, 0.3 part of Hemings 165F and 0.1 part of Hemings MA-95 to the water-based polyurethane resin under stirring, wherein the stirring speed is 800 rpm, and Adjust the pH value to 7-9 and adjust the viscosity to KU (25° C.) ≥ 20GB / T9269-2009, then filter and pack the slurry to ...

Embodiment 2

[0054] This embodiment is basically the same as Embodiment 1, except that the content of the added components is different. In this example, 30 parts of deionized water, 0.2 parts of tert-butanol, 8 parts of propylene glycol methyl ether, 0.2 parts of propylene glycol, 0.2 parts of DF-60, 0.1 part of bentonite, 10 parts of SZP-391, and 15 parts of talcum powder were used , 1 part of Rhodia DN-642, 1 part of Hemings FX600, 70 parts of waterborne polyurethane resin, 11 parts of tannic acid, 0.6 parts of Hemings 165F and 0.3 parts of Hemings MA-95. Table 2 lists the performance data of the primer of this example.

[0055] Table 2

[0056]

Embodiment 3

[0058] This embodiment is basically the same as Embodiment 1, except that the content of the added components is different. In this example, 15 parts of deionized water, 0.2 parts of tert-butanol, 4.5 parts of propylene glycol methyl ether, 0.2 parts of propylene glycol, 0.2 parts of DF-60, 0.1 parts of bentonite, 9 parts of SZP-391, and 10 parts of talcum powder were used , 0.5 parts of Rhodia DN-642, 0.75 parts of Hemings FX600, 55 parts of waterborne polyurethane resin, 8 parts of tannic acid, 0.45 parts of Hemings 165F and 0.2 parts of Hemings MA-95. Table 3 lists the performance data of the primer of this example.

[0059] table 3

[0060]

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Abstract

The invention relates to a water-based heavy-duty single-component primer, which is prepared from the following components in parts by mass: 18 to 33, preferably 20 to 30, parts of de-ionized water, 1.5 to 10, preferably 2 to 8, parts of a coalescing agent, 6 to 12, preferably 8 to 10, parts of an anti-rust pigment, 3.5 to 17, preferably 5 to 15, parts of filler, 0.3 to 1.2, preferably 0.5 to 1.0, part of a dispersant, 0.08 to 0.4, preferably 0.1 to 0.3, part of a pH regulator, 38 to 75, preferably 40 to 70, parts of a film former, 7 to 11, preferably 8 to 10, parts of a complexing agent and 0.1 to 0.3, preferably 0.2, part of a penetrant. The invention also provides a preparation method and application of the water-based heavy-duty single-component primer.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a water-based heavy-duty anti-corrosion single-component primer. The invention also relates to a preparation method and application of the water-based heavy-duty one-component primer. Background technique [0002] The primers in the prior art do not have the function of rust removal. In the construction process, the rust remover is usually used to remove rust on the metal surface, and then the primer is applied after the rust removal is completed. In this way, the process of painting is cumbersome, time-consuming and costly. In addition, because the working principle of the existing rust remover is to use the adsorption function of the corrosion inhibitor to the newly generated iron atoms on the surface of steel / cast iron, cover the surface of steel / cast iron, and block the contact of iron atoms on the surface of steel / cast iron with air, thereby To achieve the corresponding a...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D7/12C09D5/08
Inventor 杨卫兵
Owner 杨卫兵
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