Water-based primer and preparation method thereof

A technology of water-based primer and active diluent, which is applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., and can solve problems such as stability, impact resistance, sag resistance, drying speed, salt spray resistance, and poor flame retardancy. , to achieve good anti-settling effect, good adhesion performance and high specific surface area

Inactive Publication Date: 2019-10-22
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of poor stability, impact resistance, sag resistance, drying speed, salt spray resistance and flame retardancy of existing water-based primers, the invention provides a water-based epoxy primer and a preparation method thereof

Method used

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  • Water-based primer and preparation method thereof
  • Water-based primer and preparation method thereof
  • Water-based primer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A water-based primer, comprising A component and B component;

[0029] Described A component comprises the component of following mass percentage:

[0030] raw material Proportion (%) epoxy resin 10 Epoxy Reactive Diluent 1 Dispersant 0.5 Defoamer 0.1 Coalescent 1 Zinc powder 53.6 Al-Si Alloy Powder 12 Ferrophosphorus powder 20 expanded graphite 1 silica 0.2 Anti-flash rust agent 0.1 Zirconium phosphate 0.5

[0031] Described B component comprises the component of following mass percentage:

[0032] raw material Proportion (%) Hardener 70 Deionized water 30

[0033] The mass ratio of the A component to the B component is 4:1.

[0034] Among them, the epoxy resin is selected from Shandong Mingda New Material Co., Ltd. F0704; the epoxy reactive diluent is selected from Nanya epoxy reactive diluent 692; the dispersant is selected from Nanjing Quanxi Chemical ...

Embodiment 2

[0040] A water-based primer, comprising A component and B component;

[0041] Described A component comprises the component of following mass percentage:

[0042] raw material Proportion (%) epoxy resin 20 Epoxy Reactive Diluent 2 Dispersant 0.4 Defoamer 0.3 Coalescent 3 Zinc powder 46 Al-Si Alloy Powder 8 Ferrophosphorus powder 15 expanded graphite 2 silica 1 Anti-flash rust agent 0.3 Zirconium phosphate 2

[0043] Described B component comprises the component of following mass percentage:

[0044] raw material Proportion (%) Hardener 80 Deionized water 20

[0045] The mass ratio of the A component to the B component is 5:1.

[0046]Among them, the epoxy resin is selected from Shandong Mingda New Material Co., Ltd. F0704; the epoxy reactive diluent is selected from Nanya epoxy reactive diluent 692; the dispersant is selected from Nanjing Quanxi Chemical Co., Ltd...

Embodiment 3

[0052] A water-based primer, comprising A component and B component;

[0053] Described A component comprises the component of following mass percentage:

[0054]

[0055]

[0056] Described B component comprises the component of following mass percentage:

[0057] raw material Proportion (%) Hardener 90 Deionized water 10

[0058] The mass ratio of the A component to the B component is 6:1.

[0059] Among them, the epoxy resin is selected from Shandong Mingda New Material Co., Ltd. F0704; the epoxy reactive diluent is selected from Nanya epoxy reactive diluent 692; the dispersant is selected from Nanjing Quanxi Chemical Co., Ltd. A-171; the defoamer is selected by quality Composed of phospholipid hydrophobic defoamer and silicone defoamer at a ratio of 3:1, the phosphate hydrophobic defoamer is 941PL from MOUSSEX, and the silicone defoamer is BYK- 028; the film-forming aid is propylene glycol methyl ether; the zinc powder is F1000 from Dali...

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Abstract

The invention relates to the technical field of coatings, and concretely discloses a water-based primer and a preparation method thereof. The water-based primer comprises a component A and a componentB; the component A comprises, by mass, an epoxy resin, an epoxy reactive diluent, a dispersant, a defoamer, a film forming aid, zinc powder, aluminum-silicon alloy powder, ferrophosphorus powder, expanded graphite, silica, a flash rust inhibitor and zirconium phosphate; the component B includes, by mass, a curing agent, and the balance of deionized water; and a mass ratio of the component A to the component B is (4-6):1. The water-based primer of the invention has the advantages of good stability, good impact resistance, good sag resistance, good drying speed, good salt spray resistance, goodflame retardant performance, simple preparation process, convenience in construction, and low production cost.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based primer and a preparation method thereof. Background technique [0002] As the main film-forming substance, epoxy resin has the characteristics of good adhesion and low requirements on substrates. It is widely used in the field of industrial protection. For example, epoxy zinc-rich primer is generally used for container protection; Alcohol-soluble inorganic zinc silicate epoxy primers are generally used for paint protection, but traditional epoxy primers use a large amount of organic solvents in the production and construction process, and have high volatile organic compound (VOC) emissions, which cannot Meet the requirements of environmental protection; while the stability, impact resistance, sag resistance, drying speed, salt spray resistance and flame retardancy of water-based epoxy primers cannot meet the performance requirements for primers such as ships and co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D5/18C09D7/45
CPCC08K2003/023C08K2003/0812C08K2003/0893C08K2003/321C09D5/084C09D5/106C09D5/18C09D7/45C09D163/00C08K13/04C08K7/24C08K3/08C08K3/32C08K3/02C08K3/36
Inventor 赵宁宁周泽钱马春福胡中源
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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