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Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar

A technology of powder coating and gripping force, which is applied in the direction of anti-corrosion coatings, coatings, conductive coatings, etc., can solve problems such as patent publications that have not been found, and achieve excellent anti-corrosion effects, delay metal corrosion, and strong adhesion.

Inactive Publication Date: 2015-09-09
天津翔盛伟业粉末涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar
  • Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar
  • Powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar, and manufacturing method and applications of heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A heavy-duty anti-corrosion high-holding force double-coated powder coating for thin-layer steel bars, the powder coating includes a heavy-duty anti-corrosion primer and a super-tough epoxy topcoat;

[0049] Wherein, the raw material constituents and parts by weight of the heavy-duty primer are as follows:

[0050]

[0051] The pigments and fillers are composed of inorganic pigments, rutile titanium dioxide, silicon micropowder and mica powder, and the weight ratio of inorganic pigments, rutile titanium dioxide, silicon micropowder and mica powder is 10:60:50:20.

[0052] The auxiliary agent is composed of a brightener, a leveling agent, a toughening agent and a degassing agent, and the weight ratio of the brightening agent, the leveling agent, the toughening agent and the degassing agent is 8:6:18:3;

[0053] The above-mentioned materials are added to a high-speed mixer according to parts by weight, and after dry mixing, they are added to an extruder for conventiona...

Embodiment 2

[0067] A heavy-duty anti-corrosion high-holding force double-coated powder coating for thin-layer steel bars, the powder coating includes a heavy-duty anti-corrosion primer and a super-tough epoxy topcoat;

[0068] Wherein, the raw material composition components and parts by weight of the heavy anticorrosion primer are respectively:

[0069]

[0070] The above-mentioned materials are added to a high-speed mixer according to parts by weight, and after dry mixing, they are added to an extruder for conventional melting, mixing, cooling, and tabletting, and then pulverized, classified, sieved, and packaged by a pulverizer. It becomes the finished product of heavy-duty anti-corrosion primer powder coating for steel bars;

[0071] The raw material constituents and parts by weight of the super-tough epoxy topcoat are respectively:

[0072]

[0073] Weigh bisphenol A type epoxy resin NPES-907 and carboxyl-terminated liquid nitrile rubber modified epoxy resin KR-102 in proporti...

Embodiment 3

[0077] A heavy-duty anti-corrosion high-holding force double-coated powder coating for thin-layer steel bars, the powder coating includes a heavy-duty anti-corrosion primer and a super-tough epoxy topcoat;

[0078] Wherein, the raw material composition components and parts by weight of the heavy anticorrosion primer are respectively:

[0079]

[0080] The above-mentioned materials are added to a high-speed mixer according to parts by weight, and after dry mixing, they are added to an extruder for conventional melting, mixing, cooling, and tabletting, and then pulverized, classified, sieved, and packaged by a pulverizer. It becomes the finished product of heavy-duty anti-corrosion primer powder coating for steel bars;

[0081] The raw material constituents and parts by weight of the super-tough epoxy topcoat are respectively:

[0082]

[0083] The special tough epoxy resin is made by mixing bisphenol A epoxy resin and carboxyl-terminated liquid nitrile rubber modified ep...

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Abstract

The invention relates to a powder coating used for heavy-duty corrosion-resistant high-bounding stress double-coating thin layer steel bar. The powder coating comprises a heavy-duty anticorrosive undercoat and a super-toughness epoxy finishing coat; the heavy-duty anticorrosive undercoat is composed of, by weight, 650 to 850 parts of epoxy resin, 50 to 200 parts of a curing agent, 3 to 30 parts of a conducting polymer nano material, 60 to 260 parts of a pigment and filler, and 20 to 50 parts of an auxiliary agent; the super-toughness epoxy finishing coat is composed of, by weight, 650 to 850 parts of a special toughness epoxy resin, 50 to 200 parts of a curing agent, 60 to 300 parts of a pigment and filler, and 20 to 50 parts of an auxiliary agent. The powder coating is capable of delaying metal corrosion, inducing gradual repairing of oxide films, providing heavy-duty anticorrosive undercoat coating with self repair functions, providing steel bar with super corrosion resistance, increasing adhesion of steel bar finishing coat coating, providing steel bar finishing coat coating with stretch resistance, cracking resistance, and peeling resistance, and prolonging service life of steel bar.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and relates to heavy-duty anti-corrosion powder coatings, in particular to a powder coating for heavy-duty anti-corrosion high-holding strength double-coated thin-layer steel bars, the steel bar, and a manufacturing method and application of the steel bar. Background technique [0002] Corrosion of steel bars will lead to cracking and spalling of reinforced concrete structures, which will reduce the durability of reinforced concrete. The basic cause of steel corrosion is electrochemical corrosion. Although concrete has a protective effect on steel bars, due to certain gaps in reinforced concrete, when corroded by salt water or acid rain, the steel bars will be corroded, and the oxide scale produced by the corrosion is relatively loose, which can make the steel bar volume expand dozens of times, resulting in The concrete cracks and the protective layer falls off, so that the steel bars ar...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D5/46C09D5/24C09D7/12B05D7/26B05D3/02
Inventor 张海瑞赵金祥曹雨
Owner 天津翔盛伟业粉末涂料有限公司
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