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Chromium-free environment-friendly epoxy anticorrosion primer

An anti-corrosion primer and epoxy technology, applied in epoxy resin coatings, coatings and other directions, can solve the problems of poor toughness and brittleness of the paint film, and is not environmentally friendly, and achieve good environmental performance, weather resistance promotion, and adhesion. Effect

Active Publication Date: 2012-12-26
DE LAITTERN ENVIRONMENTAL COATING BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of existing epoxy anti-corrosion primers that are not environmentally friendly and the paint film has poor toughness and brittleness, and provide a chrome-free epoxy anti-corrosion primer

Method used

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  • Chromium-free environment-friendly epoxy anticorrosion primer
  • Chromium-free environment-friendly epoxy anticorrosion primer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In embodiment 1, bisphenol A epoxy resin is 601 epoxy resins (the brand number of Wuxi resin factory is 0191-X75) and liquid epoxy resin 618; Reactive diluent is Cardolite NX-513; Coloring pigment is rutile type Titanium dioxide and organic yellow pigments; antirust pigments are aluminum tripolyphosphate (800 mesh) and 465M from Pigmentan; adhesion promoter is Degussa LTW; anti-settling and anti-sag additives are organic bentonite and BYK-410; dispersion The agent is BYK-103; the leveling agent is BYK-358N; the defoamer is BYK-A530; the cashew nut shell modified phenalkamine curing agent with an amine value of 180-210 is Cardolite NX-2015; the amine value is 220-210 The 270 cashew shell modified phenalkamine curing agent is MD2041 from Shanghai Meidong Biomaterials Co., Ltd.

[0058] Preparation of Primer 1:

[0059] Component A contains the following ingredients in parts by weight:

[0060] Bisphenol A epoxy resin 0191-X75 24

[0061] Bisphenol A epoxy resin 618 5 ...

Embodiment 2

[0093] In Example 2, the reactive diluent is C 12 ~C 14 Glycidyl ether; Anti-rust pigment is aluminum tripolyphosphate (800 orders) and SRPP of Heubach Company; Adhesion promoter is AP-3000 of Canada CanfairTechnologies. The curing agent with an amine value of 180-210 is Cardolite NX-2015A, and the curing agent with an amine value of 220-270 is YJC-301 from Jinan Yunjia Chemical Co., Ltd. Others are the same as in Example 1.

[0094] Component A contains the following ingredients in parts by weight:

[0095] Bisphenol A epoxy resin 0191-X75 24

[0096] Bisphenol A epoxy resin 618 5

[0097] Reactive diluent: C 12 ~C 14 Glycidyl ether 2

[0098] Coloring Pigment: Titanium Dioxide 8

[0099] Organic yellow pigment 0.6

[0100] Anti-rust pigment: SRPP 10

[0101] Aluminum tripolyphosphate (800 mesh) 10

[0102] Filler: ultrafine quartz powder X7 7

[0103] Aluminum powder 2

[0104] Talc powder (800 mesh) 10.8

[0105] Additives: Adhesion Promoter: AP-3000 2

[010...

Embodiment 3

[0123] In embodiment 3, the reactive diluent is KB-62; the adhesion promoter is Degussa LTW; others are the same as in embodiment 2.

[0124] Component A contains the following ingredients in parts by weight:

[0125] Bisphenol A epoxy resin 0191-X75 24

[0126] Bisphenol A epoxy resin 618 5

[0127] Reactive diluent: KB-62 2

[0128] Coloring Pigment: Titanium Dioxide 8

[0129] Organic yellow pigment 0.6

[0130] Anti-rust pigment: SRPP 10

[0131] Aluminum tripolyphosphate (800 mesh) 10

[0132] Filler: ultrafine quartz powder X7 7

[0133] Aluminum powder 2

[0134] Talc powder (800 mesh) 10.8

[0135] Auxiliary: Adhesion Promoter: Degussa LTW 3

[0136] Anti-settling and anti-sag additive: organic bentonite 0.45

[0137] BYK-410 0.3

[0138] Dispersant BYK-103 1

[0139] Leveling agent BYK-358N 0.5

[0140] Defoamer BYK-A530 0.5

[0141] Mixed solvent: propylene glycol methyl ether acetate 4.8

[0142] Butanol 3

[0143] Xylene 7.05

[0144] Component B c...

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Abstract

The invention relates to an environment-friendly double-component epoxy anticorrosion primer without containing heavy metals such as chromium and the like. The primer is prepared from components A and B, wherein the component A contains bisphenol A epoxy resin, active dilute, tinting pigment, antirust pigment, filler, auxiliary agent, mixed solvent and the like; and the component A is a curing agent component and contains two cashew nut shell modified phenolic aldehyde amine curing agents with different amine values and a mixed solvent. During use, the components A and B are mixed in a weight ratio of 5 to 1. The anticorrosion primer does not contain the heavy metals such as chromium and the like, and meanwhile has excellent anticorrosion performance, physical and mechanical properties, salt mist resistance and acid and alkali resistance. The primer is particularly suitable for coating steel materials, aluminum materials, aluminum alloy and the like, and can be used as a surface anticorrosion primer for airplanes, rapid trains and the like with high anticorrosion requirements. The primer can be normally constructed even at the low temperature of 5 DEG C below zero, and has excellent matching property with finishing paint.

Description

technical field [0001] The invention relates to an anti-corrosion primer, more specifically, to a two-component chrome-free environment-friendly epoxy anti-corrosion primer. Background technique [0002] Epoxy anti-corrosion primers are widely used in heavy anti-corrosion fields such as ships, inner and outer walls of pipelines, mine steel frames, aircraft, and high-speed trains. In order to obtain a better anti-corrosion effect, the existing epoxy anti-corrosion primers are generally added with chromium-containing anti-rust pigments, such as chromate containing hexavalent chromium, to improve anti-corrosion performance. Disclosed two-component anticorrosion paint as Chinese patent application publication CN101457116A, CN100526406C, have adopted zinc yellow, chrome yellow, strontium yellow, zinc phosphochromate etc. Harmful to human body, especially hexavalent chromium is carcinogenic. Heavy metal pigments such as chromium contained in the primer will cause serious harm to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C04B26/10C04B111/20
Inventor 林志宏国建坡张雅琴
Owner DE LAITTERN ENVIRONMENTAL COATING BEIJING
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