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A self-cleaning heavy-duty anti-corrosion super-weather-resistant powder coating and its preparation method and application

A powder coating and heavy-duty anti-corrosion technology, applied in powder coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve the problems of complex processing technology, poor adhesion between coatings and base materials, etc. Effect of treatment process, good self-cleaning performance

Active Publication Date: 2015-09-23
NINGBO SOUTH SEA CHEM
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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 that the pretreatment process of fluorocarbon coatings in the prior art is complicated when adding nano-titanium dioxide and the adhesion between the coating and the base material is poor, so as to provide a coating that does not require pretreatment, coating and base material. Self-cleaning heavy-duty anti-corrosion super weather-resistant powder coating with good adhesion of materials;

Method used

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  • A self-cleaning heavy-duty anti-corrosion super-weather-resistant powder coating and its preparation method and application
  • A self-cleaning heavy-duty anti-corrosion super-weather-resistant powder coating and its preparation method and application
  • A self-cleaning heavy-duty anti-corrosion super-weather-resistant powder coating and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The self-cleaning heavy-duty anti-corrosion and super-weather-resistant powder coating described in this example is obtained by dry mixing an epoxy resin particle system and a fluorocarbon resin particle system with a weight-to-number ratio of 1:1.

[0062] Described epoxy resin particle system comprises the component composition of following parts by weight:

[0063] Bisphenol A type epoxy resin (E-12) and curing agent A dicyandiamide A total of 70 copies;

[0064] 40 parts of pigment and filler A, said pigment and filler A contains 8 parts of pigment carbon black FW200, and 32 parts of filler barium sulfate W-44HB;

[0065] 50 parts of zinc-rich anti-corrosion metal;

[0066] Auxiliary A is for 6 copies;

[0067] The fluorocarbon resin particle system consists of the following components by weight:

[0068] A total of 80 parts of FEVE fluorocarbon resin (Lumiflon710) and curing agent B blocked isocyanate (Degussa VESTAGON B1530);

[0069] Anatase TiO 2 Nanopa...

Embodiment 2

[0081] The self-cleaning heavy-duty anti-corrosion and super-weather-resistant powder coating described in this example is obtained by dry mixing an epoxy resin particle system and a fluorocarbon resin particle system with a weight-to-number ratio of 4:1.

[0082] Described epoxy resin particle system is made up of the component of following parts by weight:

[0083] Novolac epoxy resin (KUKDO YDPN series) and curing agent A hydrazide (ADH) total 40 parts;

[0084] 5 parts of pigment and filler A, said pigment and filler A contains 2 parts of pigment carbon black FW200, and 3 parts of filler barium sulfate W-44HB;

[0085] 20 parts of zinc-rich anti-corrosion metal;

[0086] Auxiliary A is 0.5 copies;

[0087] The fluorocarbon resin particle system consists of the following components by weight:

[0088] FEVE fluorocarbon resin and curing agent B isocyanate A total of 50 copies;

[0089] Anatase / rutile mixed crystal TiO 2 Nanoparticles TI-P100 is 1 part;

[0090] 5 par...

Embodiment 3

[0099] The self-cleaning heavy-duty anti-corrosion and super-weather-resistant powder coating described in this example is obtained by dry mixing an epoxy resin particle system and a fluorocarbon resin particle system at a ratio of parts by weight of 1:4.

[0100] Described epoxy resin particle system comprises the component composition of following parts by weight:

[0101] Novolac epoxy resin (KUKDO YDPN series) and curing agent A-terminated carboxyl polyester A total of 100 copies;

[0102] 60 parts of pigment and filler A, said pigment and filler A contains 15 parts of pigment titanium dioxide CR826, and 45 parts of filler nepheline such as minex-10;

[0103] 60 parts of zinc-rich anti-corrosion metal;

[0104] Auxiliary A is C is 10 copies;

[0105] The fluorocarbon resin particle system consists of the following components by weight:

[0106] FEVE fluorocarbon resin (Japan Asahi Glass Lumiflon710) and curing agent B biuret polyisocyanate total 90 parts;

[0107...

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Abstract

The invention relates to a coating with performances of self-cleaning, heavy corrosion protection and super weather resistance. The coating with performances of self-cleaning, heavy corrosion protection and super weather resistance comprises an epoxy resin particle system which consists of epoxy resin and curing agent A, and a fluorocarbon resin particle system which comprises fluorocarbon resin, curing agent B and TiO2 nanometer particles. The ratio (weight in parts) of the epoxy resin particle system to the fluorocarbon resin particle system is 4-1:1-4. The self-cleaning powder coating with performances of heavy corrosion protection and super weather resistance disclosed by the invention has phase separation during the curing process to form a fluorocarbon face and an epoxy bottom layer, TiO2 nanometer particles only exist in the fluorocarbon face, and photocatalysis decomposition is prevented under the action of TiO2 due to the high chemical stability of fluorocarbon, so that the powder coating has good performances of self-cleaning, heavy corrosion protection and super weather resistance.

Description

technical field [0001] The invention relates to a self-cleaning heavy-duty anti-corrosion super-weather-resistant powder coating and a preparation method and application thereof, belonging to the field of functional powder coatings. Background technique [0002] With the rapid economic development in the last ten years, infrastructure construction has achieved a gratifying situation of rapid development, but the problem of stains on the surface of buildings has not been well resolved. Severe stains on the surface of buildings will lead to poor landscape effects, a decline in asset value, damage to the image of the government and the owner unit, and the cleaning work is time-consuming and laborious. Individual cleaning work such as highway guardrails and other traffic facilities is difficult to carry out. In the field of coatings, it is the mainstream understanding that hydrophobic coatings are not easy to adhere to stains. On this basis, many stain-resistant products have be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D163/04C09D127/12C09D5/16C09D5/10C09D5/03
Inventor 张云伟
Owner NINGBO SOUTH SEA CHEM
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