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Preparation method for high-build epoxy coating and prepared coating

A technology of epoxy thick paste and coating, applied in the field of coatings, can solve the problems of hollow coils, difficult operation, sliding of coating facades, etc., and achieve the effects of high elongation, long life and easy construction

Inactive Publication Date: 2016-01-27
JIANGSU XIN AN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional anti-corrosion and waterproof coatings often encounter problems such as sliding of the coating facade, hollowing of the coil, and difficult operation of complex parts

Method used

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  • Preparation method for high-build epoxy coating and prepared coating
  • Preparation method for high-build epoxy coating and prepared coating
  • Preparation method for high-build epoxy coating and prepared coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Add 15% asphalt, 5% chloroprene rubber, and 13% epoxy resin into distilled water by weight, put them on an electric mixer and stir evenly at a low speed, and mix 20% titanium dioxide and 25% functional fillers according to the density. Add slowly in large order, and at the same time add appropriate amount of defoamer according to the situation, then slowly add film-forming aids and part of thickener, stir evenly at low speed, then move to high-speed stirring disperser, add the remaining part of thickener, and disperse at high speed About 30 minutes to get epoxy thick paste;

[0016] (2) Take 15% of coal tar pitch, 3% of auxiliary materials, and 4% of coal tar in parts by mass, slowly add to the prepared epoxy thick paste, stir at low speed for 30-45min, adjust the viscosity and pH, and discharge to prepare the coating.

[0017] Perform a performance limit test on it, and the results are as follows:

[0018] The prepared coating property data of table 1 embodiment 1...

Embodiment 2

[0021] (1) Add 20% asphalt, 8% chloroprene rubber, and 12% epoxy resin into distilled water by weight, put them on an electric mixer and stir evenly at a low speed, and mix 15% titanium dioxide and 20% functional fillers according to the density. Add slowly in large order, and at the same time add appropriate amount of defoamer according to the situation, then slowly add film-forming aids and part of thickener, stir evenly at low speed, then move to high-speed stirring disperser, add the remaining part of thickener, and disperse at high speed About 30 minutes to get epoxy thick paste;

[0022] (2) Slowly add 15% of coal tar pitch, 4% of auxiliary materials, and 6% of coal tar into the prepared epoxy thick paste in parts by mass, stir at a low speed for 40-55min, adjust the viscosity and pH, and discharge to prepare the coating;

[0023] Perform a performance limit test on it, and the results are as follows:

[0024] The prepared coating property data of table 2 embodiment 2 ...

Embodiment 3

[0027] (1) Add 25% asphalt, 8% chloroprene rubber, and 12% epoxy resin into distilled water by weight, put them on an electric mixer and stir evenly at a low speed, and mix 20% titanium dioxide and 20% functional fillers according to the density. Add slowly in large order, at the same time add appropriate amount of auxiliary materials according to the situation, then slowly add film-forming aids and part of the thickener, stir evenly at a low speed, then move to a high-speed stirring disperser, add the remaining part of the thickener, and disperse at a high speed for about 40 minutes , to get epoxy thick paste;

[0028] (2) Take 10% of coal tar pitch, 3% of auxiliary materials, and 2% of coal tar in parts by mass and slowly add them to the prepared epoxy thick paste, stir at low speed for 30-55min, and use ultrasonic dispersion for about 20min to adjust the viscosity and pH. materials to make coatings;

[0029] Perform a performance limit test on it, and the results are as fo...

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Abstract

The invention discloses a preparation method for a high-build epoxy coating. The preparation method comprises the following steps: (1) weighing, by mass, 15 to 25% of asphalt, 5 to 8% of chloroprene rubber and 12 to 14% of epoxy resin modified latex into distilled water, carrying out uniform mixing under stirring, then adding 10 to 20% of titanium dioxide and 10 to 20% of a functional filling material, adding a proper amount of an antifoaming agent, a film forming aid and a thickening agent and carrying out uniform mixing under stirring and dispersion for 30 to 40 min so as to obtain high-build epoxy paste; and (2) weighing, by mass, 10 to 18% of coal tar pitch, 2 to 4% of coal tar and 2 to 6% of an accessory material, adding the weighed materials into the high-build epoxy paste, carrying out stirring for 30 to 55 min and adjusting viscosity and a pH value so as to prepare the high-build epoxy coating. The invention also discloses the high-build epoxy coating. The high-build epoxy coating has better weatherability, deformation resistance, high tensile strength, great ductility, strong adaptability to contraction and cracking deformation of a base layer, and superior acid resistance, alkali resistance, corrosion resistance and water resistance and can be easily constructed on any complex part.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to an epoxy mastic coating and a preparation method thereof. Background technique [0002] Anti-corrosion and waterproof coatings are mainly used for anti-corrosion of the outer walls of buried or underwater steel pipelines for oil transportation, gas transmission, water supply, and heating. Anti-corrosion and waterproof and anti-leakage of concrete structures such as concrete pipes, sewage pools, roof waterproof layers, toilets, and basements. Traditional anti-corrosion and waterproof coatings often encounter problems such as sliding of the coating facade, hollowing of the coil, and difficult operation of complex parts. Contents of the invention [0003] Therefore, it is necessary to provide a kind of epoxy mastic coating to replace traditional anticorrosion and waterproof coating. [0004] A preparation method for epoxy mastic coating, comprising the steps of: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D111/00C09D163/00C09D5/08C09D7/12
Inventor 吴福娣陈晓兵杨松林
Owner JIANGSU XIN AN NEW MATERIALS TECH
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