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Aerosol type composite material anti-corrosion primer and preparation method thereof

A composite material, anti-corrosion primer technology, applied in primers, anti-corrosion coatings, coatings and other directions, can solve problems such as poor compatibility, reduce coating corrosion current, and oil-based anti-corrosion coatings performance gap, etc., to achieve good weldability , Good storage stability and construction, convenient and simple construction and operation

Pending Publication Date: 2022-03-25
SHENZHEN SUNRISE NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems existing in the background technology, the present invention proposes an aerosol-type composite material anti-corrosion primer and a preparation method thereof. The properties of tubes and graphene materials. Carbon nanotube materials greatly reduce the corrosion current of coatings. Graphene materials have a "small size effect", which can fully fill in the pores of polymer coatings, effectively blocking water and Atoms such as oxygen pass through to achieve the "shielding and labyrinth effect", thereby delaying the corrosion rate of the metal substrate. The anti-corrosion performance of the anti-corrosion primer coating prepared with it can be increased by more than 50%, and can be used with various topcoats. The film dries quickly, has excellent physical and mechanical properties, good weldability, high temperature resistance, and excellent adhesion to the substrate, which solves the problem of a large performance gap with oil-based anti-corrosion coatings; at the same time, the invention utilizes water-based epoxy modified The polarity of the silicone resin group is similar to that of the dimethyl ether propellant, which solves the compatibility between the content of the aerosol product and the propellant, and breaks the gap between the conventional water-based polymer resin and dimethyl ether. The problem of poor compatibility, the aerosol type anti-corrosion primer for composite materials has good storage stability and is convenient for construction and operation

Method used

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  • Aerosol type composite material anti-corrosion primer and preparation method thereof
  • Aerosol type composite material anti-corrosion primer and preparation method thereof
  • Aerosol type composite material anti-corrosion primer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] An aerosol type composite material anticorrosion primer, consisting of the following components in parts by weight:

[0040]

[0041]

[0042] In an optional embodiment, the water-based resin used is a high-molecular water-soluble epoxy-modified silicone resin containing low-polarity groups, the solid content is 55%, and the minimum film-forming temperature MFT is 25°C. Epoxy value (effective solid content) 0.06.

[0043] In an optional embodiment, the carbon nanotube and graphene composite material used has a particle size of less than 50 nanometers, and the weight ratio of carbon nanotubes to graphene is 0.6:1.

[0044] In an optional embodiment, the dispersant used is an acrylic-polyurethane copolymer dispersant with a polymer block structure, and the solid content is 50%.

[0045] In an optional embodiment, the preservative used is an isothiazolinone derivative, the film-forming aid used is alcohol ether, and the defoamer used is a polyether modified silicone...

Embodiment 2

[0059] An aerosol type composite material anticorrosion primer, consisting of the following components in parts by weight:

[0060]

[0061]

[0062] In an optional embodiment, the water-based resin used is a high-molecular water-soluble epoxy-modified silicone resin containing low-polarity groups, the solid content is 55%, and the minimum film-forming temperature MFT is 22°C. Epoxy value (effective solid content) 0.15.

[0063] In an optional embodiment, the carbon nanotube and graphene composite material used has a particle size of less than 50 nanometers, and the weight ratio of carbon nanotubes to graphene is 0.8:1.

[0064] In an optional embodiment, the dispersant used is an acrylic-polyurethane copolymer dispersant with a polymer block structure, and the solid content is 50%.

[0065] In an optional embodiment, the anti-settling agent used is a polyamide polymer with a solid content of 21% and an acid value of 11 mgKOH / g.

[0066] An aerosol type composite mater...

Embodiment 3

[0078] An aerosol type composite material anticorrosion primer, consisting of the following components in parts by weight:

[0079]

[0080] In an optional embodiment, the water-based resin used is a high-molecular water-soluble epoxy-modified silicone resin containing low-polarity groups, the solid content is 55%, and the minimum film-forming temperature MFT is 23°C. Epoxy value (effective solid content) 0.1.

[0081] In an optional embodiment, the carbon nanotube and graphene composite material used has a particle size of less than 50 nanometers, and the weight ratio of carbon nanotubes to graphene is 1:1.

[0082] In an optional embodiment, the dispersant used is an acrylic-polyurethane copolymer dispersant with a polymer block structure, and the solid content is 50%.

[0083] In an optional embodiment, the preservative used is an isothiazolinone derivative, the film-forming aid used is alcohol ether, and the defoamer used is a polyether modified silicone type defoamer....

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Abstract

The invention relates to the technical field of anti-corrosion primer, and discloses aerosol type composite material anti-corrosion primer and a preparation method thereof.The aerosol type composite material anti-corrosion primer is prepared from, by weight, 10-20 parts of water-soluble resin, 10-30 parts of deionized water, 0.2-0.5 part of preservative, 1-2 parts of coalescing agent, 1-2 parts of dispersing agent, 0.1-0.5 part of wetting agent, 0.1-0.5 part of defoaming agent and 50-60 parts of zinc powder. 0.1-0.5 part of a carbon nanotube and graphene composite material, 0.1-0.2 part of a pH regulator, and 0.5-1 part of an anti-settling agent. According to the invention, the characteristics of the three-dimensional composite material of the carbon nano tube and the graphene are utilized, and the characteristics of the carbon nano tube and the graphene are integrated; the problem of large performance difference with oily anticorrosive paint is solved; the problem that the compatibility of conventional water-based polymer resin and dimethyl ether is poor is solved, and the prepared aerosol type composite material anti-corrosion primer has good storage stability and is convenient and simple to construct and operate.

Description

technical field [0001] The invention relates to the field of anti-corrosion primers, in particular to an aerosol anti-corrosion primer for composite materials and a preparation method thereof. Background technique [0002] The increasing improvement of environmental protection laws and the increasingly strict supervision and law enforcement have promoted the technological progress of related materials. The performance of water-based anti-corrosion paint has also been greatly improved, and the scope of application has also been continuously expanded. It can not only be applied to some light steel components and engineering equipment In the field of anticorrosion, it can also be used in heavy anticorrosion fields such as bridges and ships. Due to the extremely low VOC emission and less environmental pollution, it has been greatly developed and applied in recent years. The water-based anti-corrosion primers currently on the market mainly use water-based polymer resins as film-f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D5/10C09D5/00C09D7/00
CPCC09D183/04C09D5/106C09D5/002C09D7/00C08K2003/0893C08K3/041C08K3/042C08K3/08
Inventor 金立新汪火胜刘科
Owner SHENZHEN SUNRISE NEW ENERGY CO LTD
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