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Chromium-free environment-friendly epoxy anticorrosion primer

An anti-corrosion primer and epoxy technology, applied in the field of anti-corrosion primer, can solve the problems of non-environmental protection, poor toughness and brittleness of the paint film, etc., achieve good environmental performance, good weather resistance and protection, and improve the environment that can withstand rapid temperature changes effect of ability

Active Publication Date: 2010-08-04
DE LAITTERN ENVIRONMENTAL COATING BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes two technical features: 1) reducing pollution caused by chrome plates during their manufacture process without compromising safety concerns, 2) create an effective solution through specific combinations of materials and treatments, resulting in better coatings with superior durability against corrosive environments than current methods like hexavalent chromic acid (Hexa), fluorochloride resin(FluoroPOLYLAR®).

Problems solved by technology

This patented technical problem addressed in this patents relates to developing an environmental-friendly and strong yet tenacious anti- corrosive coating that meets specific needs from different industries including automobile manufacturing industry, defense field, civil engineering worksites, building materials, transportations, railways, airplanes, military equipment, nuclear power plants, or other areas where good protection against rustiness may require durability over many years without causing damage on their owners' healthy bodies.

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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PUM

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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 weightratio 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

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Claims

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Application Information

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Owner DE LAITTERN ENVIRONMENTAL COATING BEIJING
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