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Silicasol-acrylate emulsion compound primer

An acrylic ester and silica sol technology, which is applied in biocide-containing paints, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve the problem of high cost pressure of latex paint, difficulty in penetrating into porous substrates, and coating adhesion Variation and other problems, to achieve the effect of slowing down the phenomenon of salting out and efflorescence, cheap price, and good wrapping power

Active Publication Date: 2012-04-18
肇庆千江高新材料科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1: The cost of emulsion keeps rising. The cheapest styrene-acrylic emulsion on the market now costs about 9 yuan / KG, and the cost of special anti-alkali primer emulsion is more than 11 yuan / KG. cost pressure
[0004] 2: The particle size of the emulsion is relatively large, and it is difficult to penetrate into the porous substrate. In some cases, the adhesion of the coating film may be deteriorated, and it is easy to peel and peel off

Method used

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  • Silicasol-acrylate emulsion compound primer
  • Silicasol-acrylate emulsion compound primer
  • Silicasol-acrylate emulsion compound primer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take 200kg of water, weigh 2.5kg of thickener and add it at 300-500 rpm, preferably ACRYSOL 2020NPR from Rohm and Haas Company in the United States, stir evenly for 5 minutes, then slowly add 1kg of pH regulator, preferably with a concentration of 10% hydrogen Potassium oxide; gradually increase the speed to 500-700 rpm, and disperse for 3-5 minutes. During the dispersion process, put 6kg of dispersant, preferably Deqian (Shanghai) Chemical Co., Ltd. DisponerW-519; 1kg of wetting agent, preferably HyonicPE-100 of German Corning Company; 1kg defoamer, preferably FoamStarA10 of German Corning Company; 2.5kg antiseptic and bactericide, preferably Kathon LXE of Rohm and Haas Company of the United States; 13kg antifreeze agent, preferably calcium chloride; 12.5kg Coating aid, preferably ethylene glycol ether; gradually increase the speed to 1000-1300 rpm for dispersion, and put in 35kg of rutile titanium dioxide, preferably R-706 from DuPont Chemical; 42kg of mica powder; 68k...

Embodiment 2

[0018] Get 170kg of water, under 300-500 rev / min, take by weighing 3kg and be selected from the 250HBR cellulose of American Aqualon (add, after uniform stirring 5 minutes, slowly add 0.5kg concentration 10% potassium hydroxide; Raise rotating speed gradually to 500 -700 rpm, disperse for 3-5 minutes. During the dispersion process, 10kg of GA-40 selected from Ciba Fine Chemicals China Co., Ltd., 2kg selected from Shenzhen Haichuan Chemical Technology Co., Ltd. HYDROPALAT 188A, 2kg selected from Dispelair CF550, 5kg of Dispelair CF550 from British Blair Keben Chemical Co., Ltd., HF, 15kg of sodium nitrite, and 15kg of ethylene glycol; gradually increase the speed to 1000-1300 rpm for dispersion, and put in 50kg from Australia CR-828 from Kemeiqi Company, 50kg of mica powder, 75kg of precipitated barium sulfate, 275kg of 1250 mesh heavy calcium, and then increase the speed to 1800-2000 rpm, and the high-speed dispersion fineness is less than 45 microns; then turn the speed to 10...

Embodiment 3

[0020]Take 230 kg of water, and at 300-500 rpm, weigh 2 kg of ACRYSLO RM-8W selected from Rohm and Haas Company of the United States and add, and after uniform stirring for 5 minutes, slowly add 8 kg of AMP-95 selected from Dow Chemical; gradually Increase the rotation speed to 500-700 rpm, and disperse for 3-5 minutes. During the dispersion process, add 0.1kg of Dispersant 5027 from Japan Nopco Auxiliary Co., Ltd., and 0.1kg of HYDROPALAT from Shenzhen Haichuan Chemical Technology Co., Ltd. 306. 1kg is selected from Dispelair CF247 of Blair Keben Chemicals in the UK, 2kg is selected from Clariant Chemicals NipacideCI-15HS, 10kg of carbonate, 10kg of propylene glycol; gradually increase the speed to 1000-1300 rpm for dispersion, and put in 0.1 kg is selected from CR-826, 25kg of mica powder, 50kg of precipitated barium sulfate, and 200kg of 1250 mesh heavy calcium from Kemeiqi Company in Australia. Then, the speed is increased to 1800-2000 rpm, and the high-speed dispersion fin...

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Abstract

The invention discloses a silicasol-acrylate emulsion compound primer, which comprises: 17-23% of water; 0.01-1% of dispersants; 0.01-0.2% of wetting agents; 0.3-0.5% of defoamers; 0.4-0.7% of anticorrosion bactericides; 1-1.5% of film-forming additives; 1-1.5% of antifreezing agents; 0.01-5% of rutile titanium dioxide; 2.5-5% of mica powder; 5-7.5% of precipitated barium sulfate; 20-27.5% of 1250-mesh heavy calcium; 19-26% of primer emulsion; 0.1-2% of pH adjusting agents; 11-19% of silicasol; 0.05-0.1% of silane coupling agents; 0.3-0.6% of thickening agents; wherein the percents are weight percents. The primer has low cost, and is not easy to peel or flake.

Description

technical field [0001] The invention relates to a silica sol-acrylate emulsion composite primer. Background technique [0002] The water-based primers that are popular in the market are all latex paints that use acrylate emulsions as film-forming substances, such as styrene-acrylic emulsions, pure acrylic emulsions, or special anti-alkali primer emulsions. This type of primer coating has been widely circulated in the market, but there are still some shortcomings: [0003] 1: The cost of emulsion keeps rising. The cheapest styrene-acrylic emulsion on the market now costs about 9 yuan / KG, and the cost of special anti-alkali primer emulsion is more than 11 yuan / KG. Cost pressure is enormous. [0004] 2: The particle size of the emulsion is relatively large, and it is difficult to penetrate into the porous substrate. In some cases, the adhesion of the coating film may be deteriorated, and it is easy to peel and peel off. [0005] 3: The construction of this type of latex pain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12C09D5/08C09D5/14
Inventor 李会宁李伟肖富平
Owner 肇庆千江高新材料科技股份公司
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