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Emulsified asphalt anti-corrosive coating

A technology for anti-corrosion coatings and emulsified asphalt, which is applied in the direction of anti-corrosion coatings, asphalt coatings, polyether coatings, etc., can solve the problems of expensive solvents, harmful to human body, and polluting the environment, and achieves simple production methods, low environmental pollution, and corrosion resistance. Improved effect

Inactive Publication Date: 2015-04-29
胡佩文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the coating is that it pollutes the environment, is flammable, is harmful to the human body, and the solvent is expensive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 55 parts of No. 90 straight-run asphalt (penetration of 150) (by weight, the same below), 21 parts of cetylpyridinium bromide, 7 parts of polyoxyethylene methyl coconut oleate, 12 parts of alginic acid Parts, 10 parts of carboxyl-terminated polyoxypropylene ether, 60 parts of water. The above-mentioned asphalt is heated to 140°C, and then the above-mentioned other raw materials are prepared into a 50°C aqueous solution, and then the asphalt and the aqueous solution are passed through the emulsification equipment to obtain the emulsified asphalt anti-corrosion coating product of the present invention.

Embodiment 2

[0030] Weigh 55 parts of No. 100 straight-run asphalt (penetration of 150) (by weight, the same below), 17 parts of cetylpyridinium bromide, 5 parts of polyoxyethylene methyl coconut oleate, 9 parts of alginic acid Parts, 8 parts of carboxyl-terminated polyoxypropylene ether, 45 parts of water. The above-mentioned asphalt is heated to 150°C, and then the above-mentioned other raw materials are prepared into a 60°C aqueous solution, and then the asphalt and the aqueous solution are passed through the emulsification equipment to obtain the emulsified asphalt anti-corrosion coating product of the present invention.

Embodiment 3

[0032] Weigh 49 parts of No. 100 straight-run asphalt (penetration of 180) (by weight, the same below), 20 parts of cetylpyridinium bromide, 7 parts of polyoxyethylene methyl coconut oleate, 12 parts of alginic acid Parts, 10 parts of carboxyl-terminated polyoxypropylene ether, 60 parts of water. The above-mentioned asphalt is heated to 140°C, and then the above-mentioned other raw materials are prepared into a 50°C aqueous solution, and then the asphalt and the aqueous solution are passed through the emulsification equipment to obtain the emulsified asphalt anti-corrosion coating product of the present invention.

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PUM

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Abstract

The invention relates to an anti-corrosive coating, and in particular relates to an emulsified asphalt anti-corrosive coating. The emulsified asphalt anti-corrosive coating consists of asphalt, hexadecylpyridinium bromide, coconut fatty acid methyl ester polyoxyethylene ether, alginic acid, end carboxyl polyoxypropylene ether and water in specific proportions, wherein by taking hexadecylpyridinium bromide as a basic emulsifying agent and taking coconut fatty acid methyl ester polyoxyethylene ether as an auxiliary emulsifying agent, the relative density difference and viscosity difference between oil and water can be reduced, when the emulsifying agent between two phases is in directional arrangement, electric potentials of asphalt micro-particles can be enhanced, a double electrode layer can be formed, the mutual repulsion force among the particles can be increased, the aggregation tendency of asphalt can be obstructed, and relatively stable emulsified asphalt can be formed; and by taking alginic acid as a stabilizing agent, the viscosity of an aqueous phase can be improved, an interfacial film can be formed on dispersed micro-particles to ensure that the micro-particles are not easy to aggregate in a mutual collision process, and the sedimentation rate of the asphalt micro-particles can be reduced to ensure that the corrosion resistance of the emulsified asphalt coating can be further improved.

Description

technical field [0001] The invention relates to an anti-corrosion coating, in particular to an emulsified asphalt anti-corrosion coating. Background technique [0002] A stable emulsion obtained by uniformly dispersing asphalt particles in an aqueous solution containing an emulsifier. Emulsified asphalt is a kind of road construction material with low viscosity and good fluidity at room temperature, which is the road asphalt that is usually used at high temperature, and is diffused into water through mechanical stirring and chemical stabilization (emulsification). It is mainly used for road upgrading and maintenance, such as stone chip seal, and there are many unique applications that cannot be replaced by other asphalt materials, such as cold mix and slurry seal. Emulsified asphalt has good adhesion, anti-aging and waterproof and anti-corrosion capabilities, and has been widely used as road construction and sealing materials for a long time. At present, the loss caused by...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D105/04C09D171/00C09D7/12C09D5/08
CPCC09D195/00C08L2205/025C08L2205/035C09D5/08C09D7/20C09D7/63C09D7/65
Inventor 胡佩文
Owner 胡佩文
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