Aquosity metallic protective paint and method for producing the same

A metal protection, water-based technology, used in latex paints, polyester coatings, devices for coating liquids on surfaces, etc., can solve the problems of less than one month to reach, affecting the final performance of the paint film, poor pigment and filler wettability, etc. Achieve the effect of superior water resistance, excellent decorative and protective properties, and good wettability

Inactive Publication Date: 2008-02-27
刘善江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above products are all produced by foreign manufacturers. Although their performance is good, their prices are very high. The general price is 40,000-60,000 yuan / ton. scope promotion
[0004] The water-based resin for domestic water-based industrial anti-corrosion paint still stays on the water-based emulsion, and its performance is restricted by the emulsion synthesis technology. However, the water-based metal protective paint prepared with water-based emulsion has large particles and poor film-forming properties, so a certain amount must be added. A film-forming agent is used to form a continuous coating film. The coating film formed in this way has poor compactness and high water vapor transmission rate, especially in salt spray resistance. Therefore, the water-based metal protective paint prepared with water-emulsion base material Compared with the solvent-based paint of the same grade, there is an obvious gap in corrosion resistance
On the other hand, an emulsifier must be added to the emulsion during the polymerization process, and the emulsion has poor wettability to the pigment and filler. In the process of preparing the paint, a certain amount of wetting agent and dispersant must be added to help the pigment and filler to disperse. Foam
The added additives are highly hydrophilic and affect the final performance of the paint film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1. This example is made from the following raw material ratios: 25% water-based resin, 1% butyl ether, 40% deionized water, 2.95% ammonia water, 0.4% wetting agent HR600, 0.15 % defoamer BYK020, 1.0% carbon black MA100, 6% iron oxide black Bayer, 5% modified zinc phosphate ZPA, 10% composite iron titanium powder WD-D-1250, 4% barium sulfate 1500 Mesh, 2% bentonite, 0.7% zinc dry material, 0.8% manganese dry material and 1.0% cobalt dry material. The above-mentioned water-based resin is made of the following raw material ratio, 20% synthetic fatty acid, 5% neopentyl glycol, 10% trimethylolpropane, 25% isophthalic acid, 0.07% ester Chemical agent, 10% partial anhydride, 17% butyl ether, 12.93% dibutanol.

[0022] The preparation method of above-mentioned waterborne metallic protective paint: it may further comprise the steps:

[0023] 1, the preparation method of above-mentioned waterborne resin: it may further comprise the steps:

[0024] (1) Add the above-men...

Embodiment 2

[0034] Embodiment 2. This embodiment is made by the following raw material ratio, 30% water-based resin, 1.5% butyl ether, 35% deionized water, 2.5% ammonia water, 0.3% wetting agent HR600, 0.2 % defoamer BYK020, 0.5% carbon black MA100, 5% iron oxide black Bayer, 4% modified zinc phosphate ZPA, 12.5% ​​composite iron titanium powder WD-D-1250, 6% barium sulfate 1500 Mesh, 1% bentonite, 0.5% zinc dry material, 0.5% manganese dry material and 0.5% cobalt dry material. The above-mentioned water-based resin is made of the following raw material ratio, 23% synthetic fatty acid, 8% neopentyl glycol, 11% trimethylolpropane, 21% isophthalic acid, 0.06% ester Chemical agent, 7% partial anhydride, 18% butyl ether, 11.94% dibutanol. Its preparation method is with embodiment 1.

Embodiment 3

[0035] Embodiment 3. This embodiment is made from the following raw material ratio, 26% of water-based resin, 1.25% of butyl ether, 36.2% of deionized water, 3% of ammonia water, 0.5% of wetting agent HR600, 0.25 % defoamer BYK020, 0.7% carbon black MA100, 6% iron oxide black Bayer, 6% modified zinc phosphate ZPA, 11% composite iron titanium powder WD-D-1250, 5% barium sulfate 1500 Mesh, 2% bentonite, 0.8% zinc dry material, 0.6% manganese dry material and 0.7% cobalt dry material. The above-mentioned water-based resin is made of the following raw material ratio, 21.95% synthetic fatty acid, 10% neopentyl glycol, 15% trimethylolpropane, 18% isophthalic acid, 0.05% ester Chemical agent, 5% partial anhydride, 20% butyl ether, 10% dibutanol. Its preparation method is with embodiment 1.

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PUM

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Abstract

The invention discloses a water-based metallic protective paint, which comprises the following steps: adding water-soluble resin, butyl ether, ammoniac water and deionized water into charge make-up pot; stirring at low speed evenly; adding into aids; mixing evenly; adding into colour filler; scattering above 20 min with high speed at 1200rpm; grinding; driving the pigment paste into allocating tank; stirring with low speed; mixing evenly; adding into dry material; stirring at least above 15min; adding into water; diluting. This product can form continuous paint film, which possesses good hardness, strong adhesive force and low price.

Description

1. Technical field [0001] The invention belongs to a water-based metal protective paint and a preparation method thereof. 2. Background technology [0002] Solvents in solvent-based paints generally account for 50%. After use, the solvents volatilize into the air, which not only wastes resources, but also pollutes the environment. The content of heavy metals in them is high, and they are basically no longer used abroad. Water-based industrial anti-corrosion coatings have always been a forbidden area for water-based coatings in the past, but now they can finally "break" in due to the development of water-based coating technology. Moreover, water-based metallic paint can convert the rust layer on the metal surface into a beneficial protective layer, which is incomparable to solvent-based paint and is the development direction of the domestic and foreign paint industry. [0003] At present, there are many very successful metal anti-corrosion water-based coating systems in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D5/02B05D7/14
Inventor 刘善江杨磊徐小东肖铭刘国旭
Owner 刘善江
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