Solvent type high-corrosion-resistance primer base for household appliance, preparation method and application thereof

A solvent-based, home appliance technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of general anti-corrosion effect and unsatisfactory anti-corrosion effect, and achieve excellent processing performance, moderate viscosity, and good adhesion performance Effect

Active Publication Date: 2016-09-07
清远慧谷新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the neutral salt spray resistance performance (GB/T 1771-1991) of household appliance primers on the market is about 200-300 hours. Or coastal areas or h

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) To prepare a solvent-based high anti-corrosion home appliance primer coating, the dosage of each component is as follows: 30 parts by mass of polyester resin (DYNAPOL LH831: ES900M = mass ratio 1:1), 5 parts by mass of curing agent (Uradur YB147S1), catalyst (Borchi Kat 24) 0.5 parts by mass, adhesion promoter (BYK-4510) 0.5 parts by mass, wetting and dispersing agent (BYK-130) 1 part by mass, titanium dioxide (DuPont R706) 18 parts by mass, anti-corrosion filler (Heubach ZP10 :HEUCOSIL CTF=mass ratio 1:3) 7 parts by mass, defoamer (BYK-052) 0.3 parts by mass, leveling agent (BYK-380N) 0.3 parts by mass, solvent (dimethyl carbonate: ethylene glycol monobutyl Ether=mass ratio 2:1) 37.4 parts by mass.

[0052] (2) The preparation method of the solvent-based high-corrosion home appliance primer coating is as follows: first, stir 5 parts by mass of polyester resin, titanium dioxide, 0.5 parts by mass of wetting and dispersing agent and 6 parts by mass of solvent (stirri...

Embodiment 2

[0054] (1) Prepare solvent-based high-corrosion home appliance primer coating, the consumption of each component is as follows: polyester resin (DYNAPOL LH820:ES450=mass ratio 1:2) 20 mass parts, curing agent (Germany Bayer BL3175) 10 mass parts, Catalyst (DBTDL) 0.1 mass parts, adhesion promoter (TEGO ADDID 900) 2 mass parts, wetting and dispersing agent (BYK-110) 0.5 mass parts, titanium dioxide (DuPont R706) 12 mass parts, anti-corrosion filler (Heubach ZPA: Haolin ECO ANTICO 101 = mass ratio 1:1) 12 mass parts, defoamer (Tego-920) 0.5 mass part, leveling agent (EFKA-3772) 1 mass part, solvent (dimethyl carbonate: cyclohexanone =Mass ratio 1:1) 41.9 parts by mass.

[0055] (2) The preparation method of the solvent-based high anti-corrosion home appliance primer coating is as follows: first, stir 4 parts by mass of polyester resin, titanium dioxide, 0.2 parts by mass of wetting and dispersing agent and 4 parts by mass of solvent (500rpm stirring for 30min), in sand Grind in...

Embodiment 3

[0057] (1) Prepare solvent-based high-corrosion home appliance primer coating, the consumption of each component is as follows: polyester resin (DYNAPOL LH820:ES410=mass ratio 1:2) 25 mass parts, curing agent (Germany Bayer BL4265) 8 mass parts, 0.3 parts by mass of catalyst (DBTDL), 1 part by mass of adhesion promoter (Deqian ADP), 0.7 parts by mass of wetting and dispersing agent (BYK-161), 16 parts by mass of titanium dioxide (DuPont R706), anti-corrosion filler (Heubach ZCP: SHIELDEX CS311=mass ratio 1:2) 10 parts by mass, defoamer (BYK-057) 0.4 parts by mass, leveling agent (EFKA-3777) 0.6 parts by mass, solvent (150# solvent: cyclohexanone = mass ratio 1 : 1) 38 parts by mass.

[0058] (2) The preparation method of solvent-based high-corrosion home appliance primer coating is as follows: first, stir 5 parts by mass of polyester resin, titanium dioxide, 0.4 parts by mass of wetting and dispersing agent and 4 parts by mass of solvent (500rpm stirring for 30min), in sand G...

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PUM

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Abstract

The invention discloses a solvent type high-corrosion-resistance primer base for a household appliance, a preparation method and an application thereof. The coating comprises the following components: 20-30% of polyester resin, 5-10% of a curing agent, 0.1-0.5% of a catalyst, 0.5-2% of an adhesion promoter, 0.5-1% of a wetting dispersant, 12-18% of titanium dioxide, 7-12% of anticorrosive filler, 0.3-0.5% of an antifoaming agent, 0.3-1% of a flatting agent and 30-45% of a solvent, and mixing the above components to obtain the primer base. The primer base provided by the invention has the following advantages of good flexibility, good water resistance, excellent neutral salt spray resistance property, and excellent processability to meet the processing requirements of different household appliances, on the basis of the existing domestic technology, the corrosion resistance property of the household appliance is improved by about 3 times, and the service life of the household appliance is greatly prolonged.

Description

technical field [0001] The invention belongs to the field of home appliance industrial coatings, and in particular relates to a solvent-based high-corrosion home appliance primer coating and a preparation method and application thereof. Background technique [0002] Household appliances are durable consumer goods with various types and colors. Most of the customers we face come from household consumers. Therefore, the appearance requirements of home appliances are very strict, and there are almost no defects. However, most of the base materials used for home appliance panels are cold-rolled sheets and hot-dip galvanized steel sheets, which are easily corroded when exposed to air for a long time, resulting in rust spots, damaging the appearance of the product, and in severe cases, paint film peeling off. According to the survey report, the annual corrosion loss of steel products in my country is about 500 billion yuan, accounting for about 6% of the gross domestic product. E...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D5/08C09D7/12
CPCC09D5/08C09D7/61C09D7/65C09D175/06C08L101/00C08L33/00C08L83/04C08K2003/2241C08K3/36C08K2003/328
Inventor 冯志德胡文龙欧阳顺冀伟强
Owner 清远慧谷新材料技术有限公司
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