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A kind of anticorrosion steel coating material and preparation method thereof

A coating material, polyethylene technology, applied in the direction of anti-corrosion coatings, coatings, polyether coatings, etc., can solve the problems of endangering the health of builders, cracking or falling off of paint films, high water vapor transmission rate, etc., and achieve excellent protection properties, good binding ability, and simple preparation method

Active Publication Date: 2017-01-04
SUZHOU KUANWEN ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, due to the relatively high density of metal zinc powder, in order to prevent the zinc powder from settling or slow down the settling speed of the zinc powder, it is necessary to add a certain amount of anti-settling agent to the paint. Due to the addition of the anti-settling agent, the viscosity of the paint It also increases, so a large amount of solvents need to be added during use. These solvents will volatilize during use, which will endanger the health of the builders and affect the air environment.
And with the change of environmental conditions, the brittleness of the paint film becomes larger after curing, and the metal expands and contracts when the temperature changes, which may easily cause the paint film to crack or fall off.
[0004] Therefore, more and more researchers pay attention to water-based metallic paints. Although water-based metallic paints are environmentally friendly, they have poor film-forming properties and high water vapor transmission rates, especially in poor salt spray resistance. Protect the metal surface, however, compared with solvent-based paint, the bonding strength is not enough, it is easy to cause the paint film to crack or peel off

Method used

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  • A kind of anticorrosion steel coating material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Filter the aluminum oxide powder with a 200-mesh filter;

[0030] (2) Weigh 70kg of polyethylene, 9kg of polyvinylidene chloride and 9kg of polyethylene glycol with an average molecular weight of 7000, mix them evenly, and react at 100°C for 0.5 hours;

[0031] (3) Adjust the pH of the product in step 1 to 5.5, add 5kg of aluminum oxide, 2kg of carbon nanotubes with a diameter of 7.8nm, 2kg of sodium tripolyphosphate, N-β-(aminoethyl)-γ-ammonia 1.5kg of propylmethyldimethoxysilane and 2kg of chromium trioxide were introduced into a homogenizer and mixed for 20 minutes to obtain an anti-corrosion steel coating material.

[0032] The performance test results of the prepared anti-corrosion steel coating materials are shown in Table 1.

Embodiment 2

[0034] (1) Filter the aluminum oxide powder with a 200-mesh filter;

[0035] (2) Weigh 72kg of polyethylene, 8kg of polyvinylidene chloride and 8kg of polyethylene glycol with an average molecular weight of 8000, mix them evenly, and react at 80°C for 1 hour;

[0036] (3) Adjust the pH of the product in step 1 to 6, add 7kg of aluminum oxide, 3kg of carbon nanotubes with a diameter of 9 nanometers, 1.5kg of sodium tripolyphosphate, N-β-(aminoethyl)-γ- 1kg of aminopropylmethyldimethoxysilane and 1kg of chromium trioxide were introduced into a homogenizer and mixed for 30 minutes to obtain an anti-corrosion steel coating material.

[0037] The performance test results of the prepared anti-corrosion steel coating materials are shown in Table 1.

Embodiment 3

[0039] (1) Filter the aluminum oxide powder with a 200-mesh filter;

[0040] (2) Weigh 74kg of polyethylene, 10kg of polyvinylidene chloride and 10kg of polyethylene glycol with an average molecular weight of 7000, mix them evenly, and react at 90°C for 0.5 hours;

[0041] (3) Adjust the pH of the product in step 1 to 5.5, add 8 kg of aluminum oxide, 2.5 kg of carbon nanotubes with a diameter of 9 nanometers, 2.8 kg of sodium tripolyphosphate, N-β-(aminoethyl)-γ - Import 2.5kg of aminopropylmethyldimethoxysilane and 1kg of chromium trioxide into a homogenizer and mix for 40 minutes to obtain an anti-corrosion steel coating material.

[0042] The performance test results of the prepared anti-corrosion steel coating materials are shown in Table 1.

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Abstract

The invention discloses an anti-corrosive steel coating material and a preparation method thereof. The anti-corrosive steel coating material comprises the following components in parts by weight: 70-74 parts of polyethylene, 8-12 parts of polyvinylidene chloride, 8-10 parts of polyethylene glycol, 5-8 parts of aluminium oxide, 2-3 parts of carbon nano tube, 1.5-2.8 parts of sodium tripolyphosphate, 1-2.5 parts of N-beta-(aminoethyl)-gamma-aminopropyl methyl dimethoxy silane and 1-2 parts of chromic oxide. The invention also provides a preparation method of the anti-corrosive steel coating material. The preparation method comprises the following steps: (1) weighing 70-74 parts of polyethylene, 8-12 parts of polyvinylidene chloride and 8-10 parts of polyethylene glycol and mixing uniformly; reacting at 80-100 DEG C for 0.5-1h; and (2) adjusting the pH of the produce generated in the step (1) to 5.5-6, adding 5-8 parts of aluminium oxide, 2-3 parts of carbon nano tube, 1.5-2.8 parts of sodium tripolyphosphate, 1-2.5 parts of N-beta-(aminoethyl)-gamma-aminopropyl methyl dimethoxy silane and 1-2 parts of chromic oxide, guiding into a homogenizer, and mixing for 20-40 minutes to obtain the anti-corrosive steel coating material.

Description

technical field [0001] The invention relates to the field of coating materials, in particular to an anti-corrosion steel coating material and a preparation method thereof. Background technique [0002] Anti-corrosion paint is a type of paint that can be used on the surface of an object to protect the interior of the object from corrosion. According to different needs, there are anti-corrosion paints with different components. [0003] In recent years, anti-corrosion paints are mainly used on metal surfaces to protect them from corrosion. The commonly used anti-corrosion paints are mainly epoxy zinc-rich paints, because their color is close to the natural color of metals and can protect the metal surface. But at the same time, due to the relatively high density of metal zinc powder, in order to prevent the zinc powder from settling or slow down the settling speed of the zinc powder, it is necessary to add a certain amount of anti-settling agent to the paint. Due to the addit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D123/06C09D127/08C09D171/08C09D5/08C09D7/12
CPCC08K2201/003C08K2201/005C08K2201/011C08L2205/025C08L2205/035C08L2207/062C08L2207/066C09D5/08C09D7/61C09D7/70C09D123/06C08L23/06C08L27/08C08L71/00C08K13/04C08K7/24C08K2003/2227C08K2003/324C08K2003/2251C08K5/544
Inventor 翁宇飞李力南姜伟
Owner SUZHOU KUANWEN ELECTRONICS SCI & TECH