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Modified mixed zinc-rich paint and process thereof

A zinc-rich, coating technology, used in anti-corrosion coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of difficult fusion, low substrate adhesion, and less solvent.

Inactive Publication Date: 2017-05-31
李玉秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Water-based inorganic zinc-rich coatings have the advantages of no odor, non-flammable, non-explosive, and no environmental pollution due to their absence of organic solvents. When added to coatings, since zinc powder is difficult to fuse with inorganic silicate, it has low adhesion to the substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Pour 50g of lithium silicate solution and 50g of potassium silicate solution into a container for mixing respectively, and heat the mixture, the heating temperature is controlled at about 50°C, and it is stirred continuously with a stirrer. During the stirring process, slowly add 300g of silica sol dropwise. After the dropwise addition, add 30g of silane coupling agent and 20g of dodecyl glycol amide into the container, and increase the stirring speed, and stop after 5 minutes. Heating, and when the temperature drops to room temperature, add 250g of silicon-acrylic emulsion, and finally add 300g of ultrafine zinc powder, and keep stirring for 10-15 minutes to obtain a modified mixed zinc-rich coating.

Embodiment 2

[0027] Pour 70g of lithium silicate solution and 70g of potassium silicate solution into a container for mixing respectively, and heat the mixture, the heating temperature is controlled at about 60°C, and it is stirred continuously with a stirrer. During the stirring process, slowly add 300g of silica sol dropwise. After the dropwise addition, add 35g of silane coupling agent and 25g of dodecyl glycol amide to the container, and increase the stirring speed, and stop after 5 minutes. Heating, and when the temperature drops to room temperature, add 300g of silicon-acrylic emulsion, and finally add 200g of ultrafine zinc powder, and keep stirring for 10-15 minutes to obtain a modified mixed zinc-rich coating.

Embodiment 3

[0029] Pour 100g of lithium silicate solution and 100g of potassium silicate solution into a container and mix them respectively, and heat the mixture. The heating temperature is controlled at about 70°C, and stirred continuously with a stirrer. During the stirring process, slowly add 200g of silica sol dropwise. After the dropwise addition, add 70g of silane coupling agent and 30g of dodecyl glycol amide to the container, and increase the stirring speed, and stop after 5 minutes. Heating, and when the temperature drops to room temperature, add 200g of silicon-acrylic emulsion, and finally add 300g of ultrafine zinc powder, and continue stirring for 10-15 minutes to obtain a modified mixed zinc-rich coating.

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Abstract

The invention relates to modified mixed zinc-rich paint and a process thereof. According to a method, lithium metasilicate and potassium metasilicate are used as composite base materials; a surfactant of dodecyl glycol amide is added; the wettability of metal zinc powder is improved; the adhesion force of the paint is enhanced; the prepared zinc-rich paint has good comprehensive performance.

Description

technical field [0001] The invention relates to a paint, in particular to a zinc-rich paint modified by adding dodecyl glycol amide and a preparation process thereof, belonging to the field of paint chemical industry. Background technique [0002] The annual economic loss caused by metal corrosion in the world accounts for about 2%-4% of the GDP of each country, and more than 100 million tons of metals are scrapped due to corrosion. Metal corrosion will significantly reduce the mechanical properties of metal materials such as strength, plasticity, and toughness, destroy the geometry of metal components, increase wear between parts, deteriorate electrical and optical physical properties, shorten the service life of equipment, and even cause fires, explosions, etc. catastrophic accident. As one of the most commonly used metal materials, steel also faces the difficult problem of corrosion. According to statistics, the steel that is directly lost due to corrosion each year acc...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D5/10C09D133/04C09D7/12
CPCC09D1/04C09D5/106C09D7/63C09D143/04
Inventor 李玉秀
Owner 李玉秀
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