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Slow-release dry-type aqueous inorganic zinc-rich coating and preparation method thereof

An inorganic zinc-rich coating, dry type technology, applied in the direction of anti-corrosion coatings, alkali metal silicate coatings, etc., to achieve excellent physical and chemical properties, good protection, and good anti-corrosion performance

Active Publication Date: 2012-11-14
TIANJIN COLOROAD COATING & CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Contents of the invention

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Main ingredient:

[0043] Zinc powder 90

[0044] Functional filler 10 (zinc oxide 1.2, talc 8, silicon dioxide 0.8)

[0045] Hardener:

[0046] Lithium silicate base material 88

[0047] Slow release drying modifier (glucose or sucrose) 12

[0048] When using, mix according to the weight ratio of main agent: curing agent = 100:40.

Embodiment 2

[0050] Main ingredient:

[0051] Zinc powder 95

[0052] Functional filler 5 (zinc oxide 0.25, talc 4, silicon dioxide 0.75)

[0053] Hardener:

[0054] Lithium silicate base material 92

[0055] Slow Release Drying Modifier (Glucose) 8

[0056] When using, mix according to the weight ratio of main agent: curing agent = 100:50.

Embodiment 3

[0058] Main ingredient:

[0059] Zinc powder 88

[0060] Functional filler 12 (zinc oxide 0.6, talc 9.6, silica 1.8)

[0061] Hardener:

[0062] Lithium silicate base material 85

[0063] Slow release drying modifier (sucrose) 15

[0064] When using, mix according to the weight ratio of main agent: curing agent = 100:30.

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Abstract

The invention relates to a slow-release dry-type aqueous inorganic zinc-rich coating. The slow-release dry-type aqueous inorganic zinc-rich coating mainly comprises a host agent and a curing agent, wherein the part by weight of the host agent to the curing agent is 100:30-100:50. The slow-release dry-type aqueous inorganic zinc-rich coating is prepared from a slow-release dry-type modifier which is matched with zinc powder and functional fillers, overcomes the rigorous condition restriction that when the conventional aqueous inorganic zinc-rich coating is applied to outdoor construction, wind force cannot be higher than the 3rd grade, and the temperature of base materials cannot be higher than 30 DEG C, can be coated on the surface of steel base materials subjected to sand blasting under the conditions that the outdoor wind force is at the 5th grade, and the temperature is 50 DEG C, can avoid the paint film defects of film cracking, film rolling in recoating and dry coating when the film thickness is 50-100 mu m, and plays an excellent role of anticorrosion on steel board workpieces. The slow-release dry-type aqueous inorganic zinc-rich coating is used for surface coating of steel boards and steel structure workpieces (such as oil tanks, air tanks and steel structure buildings) which are subjected to sand blasting.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and relates to a water-based inorganic zinc-rich coating, in particular to a slow-release drying type water-based inorganic zinc-rich coating and its preparation method and application. Background technique [0002] Water-based inorganic zinc-rich coatings have achieved impressive results in atmospheric and marine heavy-duty anti-corrosion projects due to their excellent anti-corrosion, self-healing, electrochemical, heat resistance, solvent resistance, oil resistance, weldability and zero VOC emissions. Satisfactory results have been recognized by more and more people in the industry. With the enhancement of people's awareness of environmental protection, the application of systems containing volatile organic solvents has been strictly restricted, and water-based coatings and solvent-free coatings have attracted more attention. [0003] At present, water-based inorganic zinc-ric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/10
Inventor 孟昭辉孙振瀛邓长福杨男赵琳王秀玲李磊
Owner TIANJIN COLOROAD COATING & CHEM
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