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Silane coupler/sulfonate surfactant-added composite modified coating material

A technology of silane coupling agent and surfactant, which is applied in anti-corrosion zinc-rich coatings with compounding agents and its preparation, in the field of zinc-rich coatings, which can solve the problem of low adhesion, low wettability and poor adhesion of substrates and other problems, to achieve the effect of simple preparation process, good comprehensive performance and good operability

Inactive Publication Date: 2018-10-02
陆红梅
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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 less solvent and low wettability, so the adhesion is not as good as the corresponding solvent-based coatings, and when zinc powder is added to the coating, it is difficult to fuse zinc powder and inorganic silicate, and the adhesion to the substrate Low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Pour 50g of potassium silicate solution and 50g of sodium silicate solution into a container for mixing, 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 30g of gamma-glycidyl etheroxypropyltrimethoxysilane and 20g of sodium dodecylbenzenesulfonate in the container again, and Increase the stirring speed, stop heating after stirring evenly, and then add 250g of silicon acrylic emulsion when the temperature drops to room temperature, and finally add 300g of 600-mesh zinc powder, and continue stirring to obtain a silane coupling agent / Composite modified coating of sulfonate surfactants.

Embodiment 2

[0028] Pour 70g of potassium silicate solution and 70g of sodium silicate solution into a container for mixing respectively, and heat the mixture, the heating temperature is controlled at about 65°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 gamma-glycidyl etheroxypropyltrimethoxysilane and 25g of sodium dodecylbenzenesulfonate in the container and Increase the stirring speed, and stop heating after stirring evenly. When the temperature drops to room temperature, add 300g of silicon acrylic emulsion, and finally add 200g of 700 mesh zinc powder. Composite modified coatings of acid salt surfactants.

Embodiment 3

[0030] Pour 100g of potassium silicate solution and 100g of sodium silicate solution into a container for mixing, and heat the mixture. The heating temperature is controlled at about 70°C, and it is stirred continuously with a stirrer. During the stirring process, slowly add 200g of silica sol dropwise, after the dropwise addition, add 70g of gamma-glycidyl etheroxypropyl trimethoxysilane and 30g of sodium dodecylbenzenesulfonate in the container and Increase the stirring speed, and stop heating after stirring evenly. When the temperature drops to room temperature, add 200g of silicon acrylic emulsion, and finally add 300g of 700 mesh zinc powder. Composite modified coatings of acid salt surfactants.

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PUM

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Abstract

The invention relates to a silane coupler / sulfonate surfactant-added composite modified coating material. The composite modified coating material disclosed by the invention has the advantages that during a preparation process of the composite modified coating material, the compatibility and the wettability of metal zinc oxide are synergistically improved through adding a gamma-glycidyl ether oxypropyl trimethoxy silane coupler and a sodium dodecyl benzene sulfonate surfactant; a preparation technology of oil paint of the composite modified coating material is simple, and the operability is good.

Description

technical field [0001] The invention relates to a zinc-rich paint, in particular to an anti-corrosion zinc-rich paint added with a compounding agent and a preparation method thereof, belonging to the field of paint processing. Background technique [0002] There are countless losses caused by steel corrosion every year all over the world. Steel corrosion has attracted increasing attention. People use various methods to delay the corrosion rate of steel, among which coating is a common method. Ordinary paints are applied on the surface of steel to prevent corrosion of steel by isolating the air, while zinc-rich paints can not only isolate the air, but also form a primary battery protection. The standard potential of zinc in zinc-rich paints is lower than that of steel, and the corrosive medium When infiltrated, the steel and zinc powder form a primary battery, the zinc powder loses electrons as the negative electrode of the primary battery, and the steel receives electrons as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/61C09D7/63
CPCC09D143/04C08K3/08C08K3/34C08K3/36C08K5/42C08K5/5435C08K2003/0893
Inventor 陆红梅
Owner 陆红梅