High-pollution-resistant high-silicon coating special for bridges and overhead roads

An elevated road, anti-fouling technology, applied in the coating and other directions, can solve the problems of poor paint film strength and flexibility, low gloss, stability and the product's own performance does not show high fouling and weather resistance, and achieve excellent paint film resistance. The effect of pollution and weather resistance, strong pollution resistance, and strong and super weather resistance

Active Publication Date: 2011-07-20
ASIA PAINT SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the dual constraints of synthesis technology and low solid content stability of conventional silicone acrylic coatings, the stability of the product in supporting applications and the performance of the product itself do not show its outstanding advantages such as high stain resistance and weather resistance. At the same time, it has low gloss and paint film Poor strength and flexibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The components of the special coating for high pollution resistance and high silicon bridges and elevated roads in this embodiment are: 7.8kg of water, 0.58kg of dispersant OROTAN1124, 0.15kg of wetting agent X-405, 0.1kg of bactericide HFI, and 0.25kg of defoamer BYK025 , PH value regulator AMP-95 0.1kg, film-forming agent propylene glycol butyl ether 7.6kg, rutile titanium dioxide 24.22kg, silicon acrylic emulsion (1134 emulsion of Taiwan Changxing Company) 58.6kg, fungicide DFX 0.1kg, thickening Agent RM-8W 0.5kg.

[0048] The preparation process is as follows: first add water to the container, then add wetting agent, dispersant, bactericide, defoamer, titanium dioxide in turn under the condition of stirring at a low speed of 300rpm, and stir at a high speed of 1500rpm to prepare a titanium dioxide slurry until the fineness is less than 60μm , and then add film-forming agent, silicone acrylic emulsion, etc. in sequence at low speed, adjust the pH value to 8-9, and fi...

Embodiment 2

[0053] The components of the high pollution-resistant high-silicon bridge and elevated road special coating of this embodiment are: silicon acrylic emulsion (BS45 silicone resin emulsion of German Wacker Company) 56.3kg, water 9.9kg, dispersant BYK1540.58kg, wetting agent CF -10 0.15kg, fungicide CI15 0.1kg, defoamer BYK0280.1kg, pH regulator AMP-95 0.1kg, antifungal agent EPW 0.1kg, film-forming agent propylene glycol methyl ether acetate 7.6kg, rutile titanium White powder 24.22kg, thickener UH420 0.85kg.

[0054] The preparation process is as follows: first add water to the container, then add wetting agent, dispersant, bactericide, defoamer, titanium dioxide in turn under the condition of low-speed stirring at 500rpm, and stir at high speed at 1000rpm to prepare titanium dioxide slurry until the fineness is less than 60μm , and then add film-forming agent, silicon-acrylic emulsion, etc. in sequence at low speed, and finally adjust the viscosity to 85KU with polyurethane as...

Embodiment 3

[0059]The components of the high-pollution-resistant high-silicon bridge and elevated road special coating of this embodiment are: silicon acrylic emulsion (KD20 emulsion of American National Starch Company) 53.8kg, water 12.15kg, dispersant OROTAN731A 0.58kg, wetting agent 1080 0.15kg , fungicide LXE 0.1kg, defoamer CF246 0.1kg, pH regulator AMP-95 0.1kg, antifungal agent BIT 0.2kg, film-forming agent propylene glycol butyl ether 7.6kg, rutile titanium dioxide 24.22kg, thickener UH 4501.0kg.

[0060] The preparation process is as follows: first add water to the container, then add wetting agent, dispersant, bactericide, defoamer, titanium dioxide under the condition of low-speed stirring at 400rpm, and stir at high speed at 1200rpm to prepare titanium dioxide slurry until the fineness is less than 60μm , and then add film-forming agent, silicon-acrylic emulsion, etc. in sequence at low speed, and finally adjust the viscosity to 80ku with polyurethane associative thickener and...

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Abstract

The invention provides a high-pollution-resistant high-silicon coating special for bridges and overhead roads. The coating comprises the following components in percentage by weight: 50-65 percent of silicon-acrylic emulsion, 20-30 percent of rutile type titanium dioxide, 0.5-1.0 percent of dispersing agent, 0.1-0.5 percent of wetting agent, 0.1-0.3 percent of disinfectant, 0.1-0.3 percent of mildew-proof agent, 0.2-0.5 percent of antifoaming agent, 0.1-0.3 percent of pH value regulator, 5-10 percent of film forming aid, 0.3-1.0 percent of thickener and the balance of water. The synergic actions of the components in the high-pollution-resistant high-silicon coating special for bridges and overhead roads are brought into fully play. The coating has the advantages of high film forming property, high glossiness, high adhesion, high water resistance and alkali resistance, extremely high pollution resistance and weather resistance and environmental protection function.

Description

technical field [0001] The invention relates to a paint for construction, in particular to a special paint for silicon-acrylic bridges and elevated roads. Background technique [0002] Bridges and elevated roads have been exposed to harsh conditions such as sun, rain, and motor vehicle exhaust emissions for a long time, and their cement materials are easily damaged by carbonization. The method of coating with paint is undoubtedly an effective way to solve road protection and decoration. Due to its special use environment, the coatings used in it have higher performance requirements than general exterior wall coatings, especially in terms of weather resistance and stain resistance. [0003] Water-based outdoor latex paints usually include styrene-acrylic latex paint, pure acrylic latex paint, and silicon-acrylic latex paint. Styrene acrylic paint is poor in outdoor durability and is prone to yellowing. Pure acrylic paint has good weather resistance and poor stain resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12
Inventor 李金钟
Owner ASIA PAINT SHANGHAI
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