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Aqueous metal member special-purpose paint and preparation thereof

A metal component, water-based technology, used in latex paints, coatings, devices for coating liquids on surfaces, etc. Good corrosion resistance, enhanced edge and corner paint performance, strong adhesion effect

Inactive Publication Date: 2008-09-03
刘善江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The paint used for painting metal components has been monopolized by Shanghai Lili Factory of Valspar Company in the United States. The special paint for metal components produced by it is made of a single water-based acrylic resin, which meets the above environmental protection requirements, but due to water-based acrylic resin The anti-corrosion and solvent resistance are poor, and there are many problems in the use process, such as poor salt spray resistance, the salt spray resistance of the paint film thickness of 5-10um is only 8 hours, the corners of the dip-coated workpiece do not hang the paint, and it is not suitable For spray coating, the price is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1. This embodiment is made of the following raw materials, calculated by weight percentage: 8% deionized water, 1% propylene glycol, 0.5% ammonium salt of polyacrylate copolymer, 0.05% polyethylene glycol Alcohol and 0.05% polysiloxane, 0.5% polyether modified polydimethylsiloxane, 4% imported carbon black, 12.9% iron black, 35% water-based modified acrylic resin, 30% water-based ring Oxygen resin, 3% dipropylene glycol butyl ether and 5% propylene glycol ether.

[0019] Its preparation method comprises the following steps:

[0020] 1. Add 2 / 3 of deionized water and propylene glycol into the material preparation pot according to the formula, and stir at a low speed of 400-600rpm.

[0021] 2. According to the formula quantity, add additives: dispersant, defoamer and wetting agent in sequence. After mixing evenly, add pigments and fillers: imported carbon black and iron black, and disperse at a high speed of 1200rpm for more than 20 minutes to form a uniform p...

Embodiment 2

[0025] Embodiment 2, the present embodiment is made by following raw material proportioning, calculates by weight percentage: 12.8% deionized water, 3% propylene glycol, the ammonium salt of 0.6% polyacrylate copolymer, 0.3% polyacrylate Ethylene glycol, 1.5% modified polydimethylsiloxane, 2% imported carbon black, 15% iron black, 30% water-based modified acrylic resin, 28% water-based epoxy resin, 2.6% Dipropylene glycol butyl ether and 4.2% propylene glycol ether. Its preparation method is with embodiment 1.

Embodiment 3

[0026] Embodiment 3, the present embodiment is made by following raw material proportioning, calculates by weight percentage: 18% deionized water, 5% propylene glycol, the ammonium salt of 1.5% polyacrylate copolymer, 0.5% polyacrylate Silicone, 1% polyether modified polydimethylsiloxane, 6% imported carbon black, 10% iron black, 25% water-based modified acrylic resin, 26% water-based epoxy resin, 3 % dipropylene glycol butyl ether and 4% propylene glycol ether. Its preparation method is with embodiment 1.

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PUM

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Abstract

The invention discloses a kind of paint special for aquose hardware and preparation method thereof, comprising deionized water, propylene glycol, dispersant, antifoaming agent, wetting agent, imported carbon black, iron black, aquose modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether. The preparation method comprises: adding deionized water and propylene glycol in a stock boiler, and stirring at low speed; adding dispersant, antifoaming agent and wetting agent in turn and uniformly mixing; adding imported carbon black and iron black and dispersing at high speed to form uniform paint slurry; grinding the paint slurry and conveying them into a blending pot; after stirring at low speed, adding the aquos modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether in turn after stirring, adding deionized water to dilute. The paint has good stability, high painting effeciency, stable quality, uniform paint film, smooth surface, good hardness, strong adhesion, good anti-corrosive property, good hanging paint performance at corner, no uncoated position, saltfog resistant for 48 hours, suitable for spraying; environmental protection, low cost and wide application range.

Description

1. Technical field [0001] The invention belongs to a special paint for metal components and a preparation method thereof. 2. Background technology [0002] Domestically produced metal components are mainly exported to Europe, America and other countries. The coating methods are mainly dip coating and flow coating. The stability of the paint liquid is high. After dip coating, the coating film is thin, generally 5-15um, and the anti-corrosion performance is relatively high. high. Especially for metal parts such as sofa expansion parts used on indoor sofas, the paint used in the paint also has strict requirements on environmental protection, and does not contain phthalates, glycol ethers, halogenated hydrocarbons, benzene, toluene , xylene, ethylbenzene and other substances harmful to the human body, and does not contain toxic heavy metals such as lead, cadmium, chromium, and mercury. [0003] The paint used for painting metal components has been monopolized by Shanghai Lili ...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D5/02B05D7/14C09D163/00
Inventor 刘善江杨磊徐小东肖铭刘国旭
Owner 刘善江
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