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A kind of primer for building curtain wall aluminum veneer and preparation method thereof

A technology of aluminum veneer and primer, applied in the direction of construction, building components, building structures, etc., can solve the problems of poor adhesion of aluminum veneer, heavy metal pollution, limited durability, etc., and achieve increased adhesion and good protection performance , good durability

Inactive Publication Date: 2011-12-14
苏州金近幕墙有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional primers for building curtain wall aluminum veneer have the following problems: the coating usually contains strontium chromate, which will cause heavy metal pollution and is not environmentally friendly; the coating has poor adhesion to aluminum veneer and limited durability

Method used

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  • A kind of primer for building curtain wall aluminum veneer and preparation method thereof
  • A kind of primer for building curtain wall aluminum veneer and preparation method thereof
  • A kind of primer for building curtain wall aluminum veneer and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0055] The preparation method of the B component in the second component is as follows:

[0056] Take the aliphatic isocyanate curing agent of the formulation amount and the remaining mixed solvent of about 3 / 10 of the formulation amount and mix evenly, and the obtained mixed solution is filtered with a filter bag with a pore size of 10 microns, and the filtrate is the self-made aluminum veneer for the building curtain wall. Component B in the second component of clean paint.

[0057] The third component of the self-cleaning coating for building curtain wall aluminum veneer of the present invention consists of the following components (by weight percentage):

[0058] FEVE fluorocarbon resin 60%~70%

[0059] Silicone resin 5%~10%

[0060] Acrylic leveling agent 0.05%~0.1%

[0061] Silicone leveling agent 0.1%~0.3%

[0062] Benzotriazole UV absorber 0.3%~0.8%

[0063] Hindered amine light stabilizer 0.3%~0.8%

[0064] Organotin catalyst 0.1%~0.3%

[006...

Embodiment 1

[0110] The formula of the first component of the self-cleaning paint for building curtain wall aluminum veneer according to this embodiment is (by weight, unit kg):

[0111] FB8131 polyester resin 520

[0112] CYMEL 303 amino resin 44

[0113] ETERKYD 490P-B-72 epoxy phosphate 12

[0114] SHIELDEX C 303 calcium ion exchange antirust pigment 80

[0115] Titanium dioxide R-960 130

[0116] Kaolin ASP170 70

[0117] Dispersant BYK ANTI-TERRA U 10

[0118] Coupling agent MOAP 1306 10

[0119] Coupling agent TYZOL AA-75 7

[0120] AEROSIL 200 fumed silica 2

[0121] S-150 aromatic hydrocarbon solvent 60

[0122] Ethylene glycol butyl ether 60

[0123] Apply the first component paint to the chrome-treated aluminum alloy panel, the steps are as follows:

[0124] (1) Take a chrome-treated aluminum alloy plate of 1mm×200mm×300mm, and wipe its surface clean with isopropanol (IPA);

[0125] (2), using a wire bar coating film preparer to coat the first compon...

Embodiment 2

[0164] The formula of the first component of the self-cleaning paint for building curtain wall aluminum veneer according to this embodiment is (by weight, unit kg):

[0165] K668A polyester resin 520

[0166] CYMEL 303 amino resin 44

[0167] Epoxy Phosphate 13

[0168] SHIELDEX C 303 calcium ion exchange antirust pigment 80

[0169] Titanium dioxide R-960 130

[0170] Kaolin ASP170 70

[0171] Dispersant BYK ANTI-TERRA U 10

[0172] Coupling agent MOAP 1306 10

[0173] Coupling agent TYZOL NPZ 8

[0174] Fumed silica anti-settling agent AEROSIL 200 2

[0175] S-150 Aromatic Hydrocarbon Solvent 56

[0176] Ethylene glycol butyl ether 60

[0177] In this example, epoxy phosphate is self-made epoxy phosphate, and its formula is (by weight, unit kg):

[0178] n-Butanol 5.6

[0179] E-51 epoxy resin 6.7

[0180] Phosphoric acid (mass fraction 85%) 2.7

[0181] Its preparation method is as follows:

[0182] Take a 200-liter plastic bucket, add the ...

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Abstract

The invention relates to a primer for building curtain wall aluminum veneers and a preparation method thereof. The primer includes 45% to 55% of saturated polyester resin, 4% to 6% of amino resin, and 1% of epoxy phosphate by weight percentage. %~1.5%, calcium ion exchange antirust pigment 5%~10%, titanium dioxide 10%~15%, kaolin 5%~10%, dispersant 0.5%~1%, silicon titanium or silicon zirconium type coupling agent 0.5%~2%, anti-settling agent 0.1%~0.3%, S-150 aromatic hydrocarbon solvent 5%~10%, ethylene glycol butyl ether 5%~10%; among them, the dispersant is polyamide-amide-amine type Dispersant; the anti-settling agent is fumed silica. The primer of the present invention abandons heavy metal compounds such as strontium chromate in the traditional formula, so it will not cause heavy metal pollution and is more environmentally friendly; the use of silicon-titanium or silicon-zirconium coupling agent makes the adhesion of the primer on the surface of the aluminum veneer strong For the increase, the durability is also better. The formula of the primer of the invention is reasonable, the preparation method is simple, and the primer has good protection performance for non-ferrous metal materials such as aluminum veneer and galvanized sheet.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a primer for building curtain wall aluminum veneers and a preparation method thereof. Background technique [0002] As time goes by, the surface coating of the building curtain wall will lose light, discolor, pulverize and fall off in the atmospheric environment, resulting in the exposure of the curtain wall base material. Corrosion due to electrochemical reaction, performance degradation, or even destruction, so the anti-corrosion technology of curtain wall base material plays an extremely important role in the safety performance and durability of curtain wall base material. In addition, acid rain and various dust and dirt in the atmospheric environment are easy to adhere to the surface of the curtain wall. Acid rain is corrosive to the surface coating of the curtain wall. If the substance penetrates into the coating film, the stain cannot be removed, and spots appear on the surface of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D161/20C09D5/08C07F9/6574E04B2/88
Inventor 章永瑞章基昌于少堂
Owner 苏州金近幕墙有限公司
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