Fluorocarbon coating for anticorrosion of offshore environment concrete

A concrete and anti-corrosion technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of high-temperature viscosity loss, easy loss of light and pulverization, poor water resistance, etc., to achieve excellent corrosion resistance, enhance the protective effect, and prepare The effect of simple process

Inactive Publication Date: 2019-06-07
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy coatings contain ether bonds in the epoxy resin molecules, and the resin molecules are easily degraded and broken under ultraviolet radiation, so the outdoor weather resistance of the coating film is poor, and it is easy to lose light and chalk; and the epoxy resin is sensitive to temperature and humidity during curing. Large dependence, large internal stress after curing, unsatisfactory heat resistance
Acrylic coatings have poor water resistance, tend to become brittle at low temperature, and become viscous and lose strength at high temperature, resulting in the coating being easy to stick to dust and poor in pollution resistance
Silicone resin coatings are volatile and do not meet the requirements of green environmental protection

Method used

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  • Fluorocarbon coating for anticorrosion of offshore environment concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 22g of water to the container, gradually add 17g of titanium dioxide and 6g of talc, add 0.2g of dispersant 5040 and 0.2g of wetting agent CF-10, then add 0.2g of silicone defoamer 110, 0.3g of leveling Agent RM-2020, use a disperser to disperse until uniform; in the uniformly dispersed pigment and filler slurry, add 44g of water-based fluorine-containing acrylic emulsion, and finally add 3g of film-forming aid alcohol ester twelve, 0.4g of coupling agent KH-550 , 0.2g multi-functional additive 2-amino-2-methyl-1-propanol, 1g antifreeze ethylene glycol and 0.5g polyurethane alkali-swellable thickener, continue to disperse until the system is evenly mixed to obtain concrete anti-corrosion fluorocarbon Coating, described coating comprises following component, by weight (g), self-made fluorine-containing acrylic acid emulsion 44g, titanium dioxide 17g, talcum powder 6g, dispersant 0.2g, wetting agent 0.2g, defoamer 0.2g, forming Membrane aid 3g, antifreeze agent 1g, co...

Embodiment 2

[0030] Add 22g of water to the container, gradually add 21g of titanium dioxide and 9g of talc, add 0.2g of dispersant 5040 and 0.2g of wetting agent CF-10, then add 0.2g of silicone defoamer 110, 0.3g of leveling Agent RM-2020, use a disperser to disperse until uniform; in the uniformly dispersed pigment and filler slurry, add 48g of water-based fluorine-containing acrylic emulsion, and finally add 3g of film-forming aid alcohol ester twelve, 0.4g of coupling agent KH-550 , 0.2g multi-functional additive 2-amino-2-methyl-1-propanol, 1g antifreeze ethylene glycol and 0.5g polyurethane alkali-swellable thickener, continue to disperse until the system is evenly mixed to obtain concrete anti-corrosion fluorocarbon Coating, described coating comprises following component, by weight (g), self-made fluorine-containing acrylic acid emulsion 48g, titanium dioxide 21g, talcum powder 9g, dispersant 0.2g, wetting agent 0.2g, defoamer 0.2g, forming Membrane aid 3g, antifreeze agent 1g, co...

Embodiment 3

[0032] Add 22g of water into the container, gradually add 19g of titanium dioxide and 7g of talc, add 0.2g of dispersant 5040 and 0.2g of wetting agent CF-10, then add 0.2g of silicone defoamer 110, 0.3g of leveling Agent RM-2020, use a disperser to disperse until uniform; in the uniformly dispersed pigment and filler slurry, add 46g of water-based fluorine-containing acrylic emulsion, and finally add 3g of film-forming aid alcohol ester twelve, 0.4g of coupling agent KH-550 , 0.2g multi-functional additive 2-amino-2-methyl-1-propanol, 1g antifreeze ethylene glycol and 0.5g polyurethane alkali-swellable thickener, continue to disperse until the system is evenly mixed to obtain concrete anti-corrosion fluorocarbon Coating, described coating comprises following component, by weight (g), self-made fluorine-containing acrylic acid emulsion 46g, titanium dioxide 19g, talcum powder 7g, dispersant 0.2g, wetting agent 0.2g, defoamer 0.2g, forming Membrane aid 3g, antifreeze agent 1g, ...

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Abstract

The invention relates to a fluorocarbon coating for anticorrosion of offshore environment concrete. The invention provides a water-based fluorocarbon coating for anticorrosion of offshore environmentconcrete. Concrete is protected for a long time by utilizing weather resistance, heat resistance, corrosion resistance and durability of a fluorine-containing acrylic emulsion. Water is used as a dispersion medium, no organic solvent is contained, and the green and environment-friendly requirements are met. The coating has excellent corrosion resistance, weather resistance, aging resistance and the like, the hardness of a coating is improved, and the protection effect on a concrete building can be enhanced.

Description

technical field [0001] The invention relates to the field of coatings, in particular to fluorocarbon coatings used for anti-corrosion of concrete in offshore environments. Background technique [0002] At present, concrete structures are used in many occasions. However, due to the harsh corrosive environment of the ocean, the concrete in the offshore environment is corroded by sunlight, humid air, acid, alkali and salt. Practice has proved that the concrete surface protective coating is one of the most simple and effective measures. At present, concrete anti-corrosion coatings mainly include epoxy coatings, acrylate coatings, and silicone resin coatings. Although these coatings have excellent anti-corrosion properties, they also have their own shortcomings. Epoxy coatings contain ether bonds in the epoxy resin molecules, and the resin molecules are easily degraded and broken under ultraviolet radiation, so the outdoor weather resistance of the coating film is poor, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/14C09D5/08C09D7/61C09D7/63C09D7/43
Inventor 宋莉芳陈彤丹樊涛徐鹏盛燕萍陈华鑫
Owner CHANGAN UNIV
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