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Steel pipeline anti-corrosion coating

An anti-corrosion coating and pipeline technology, applied in anti-corrosion coatings, coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor quality control, harsh construction environment, high labor intensity, etc., and achieve easy purchase and good anti-corrosion effect , The effect of simple production process

Inactive Publication Date: 2019-05-07
丹阳博亚新材料技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the materials used for the external anti-corrosion coating of steel pipelines generally include the following five types: polyethylene coating coating, fusion bonded epoxy coating, epoxy coal tar pitch coating, petroleum bitumen coating, polyethylene tape coating coating Layer, between the coatings is wound glass fiber cloth as the strength layer, according to the anti-corrosion grade, it can be wound multi-layer, and the preparation method is generally to use manual winding and brushing on the steel pipe on site, or put the anti-corrosion coating The anti-corrosion tape is wound on the steel pipe. This kind of manual on-site construction has a long production cycle, high labor intensity, harsh construction environment, and poor quality control.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An anticorrosion coating for steel pipes, characterized in that: the components of the anticorrosion coating are as follows in parts by weight: 16 parts of toluene diisocyanate, 19 parts of polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil 22 parts, 7 parts of zinc borate, 15 parts of mica powder, 5 parts of carboxypropyl methylcellulose, 4 parts of diacetone alcohol, 10 parts of styrene, 3 parts of dehydroacetic acid.

[0018] Its preparation method is:

[0019] S1: Put toluene diisocyanate, polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil, zinc borate, mica powder, carboxypropyl methylcellulose and diluent into the reaction kettle, stir at low speed for 30 minutes and then heat up to Continue to stir at 60°C for 1h;

[0020] S2: Add leveling agent and preservative to the reaction kettle, stir at high speed for 1 hour, cool down to 40°C, and stir at low speed for 5 hours;

[0021] S3: Cool the reaction kettle to room temperature...

Embodiment 2

[0023] An anti-corrosion coating for steel pipes, characterized in that: the components of the anti-corrosion coating are as follows in parts by weight: 21 parts of toluene diisocyanate, 17 parts of polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil 22 parts, zinc borate 7 parts, mica powder 19 parts, carboxypropyl methylcellulose 4 parts, polydimethylsiloxane 3 parts, styrene 9 parts, dehydroacetic acid 3 parts.

[0024] Its preparation method is:

[0025] S1: Put toluene diisocyanate, polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil, zinc borate, mica powder, carboxypropyl methylcellulose and diluent into the reaction kettle, stir at low speed for 30 minutes and then heat up to Continue to stir at 60°C for 1h;

[0026] S2: Add leveling agent and preservative to the reaction kettle, stir at high speed for 1 hour, cool down to 40°C, and stir at low speed for 5 hours;

[0027] S3: Cool the reaction kettle to room temperature, and get the ...

Embodiment 3

[0029] An anticorrosion coating for steel pipes, characterized in that: the components of the anticorrosion coating are as follows in parts by weight: 19 parts of toluene diisocyanate, 18 parts of polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil 21 parts, 9 parts of zinc borate, 18 parts of mica powder, 4 parts of carboxypropyl methylcellulose, 3 parts of diacetone alcohol, 7 parts of ethyl acetate, 2 parts of dehydroacetic acid.

[0030] Its preparation method is:

[0031] S1: Put toluene diisocyanate, polyisocyanate of hexamethylene diisocyanate, epoxidized soybean oil, zinc borate, mica powder, carboxypropyl methylcellulose and diluent into the reaction kettle, stir at low speed for 30 minutes and then heat up to Continue to stir at 60°C for 1h;

[0032] S2: Add leveling agent and preservative to the reaction kettle, stir at high speed for 1 hour, cool down to 40°C, and stir at low speed for 5 hours;

[0033] S3: Cool the reaction kettle to room temper...

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PUM

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Abstract

The invention relates to a steel pipeline anti-corrosion coating. The steel pipeline anti-corrosion coating comprises the following components: in parts by weight, 15-25 parts of tolyl diisocyanate, 15-20 parts of polyisocyanate of hexamethylene diisocyanate, 20-25 parts of epoxy soybean oil, 5-10 parts of zinc borate, 15-20 parts of mica powder, 2-5 parts of hydroxypropyl methyl cellulose, 2-4 parts of a leveling agent, 5-10 parts of a diluent and 1-3 parts of a preservative. The steel pipeline anti-corrosion coating has a simple production process, easily purchasable raw materials, low production cost, a good anti-corrosion effect and a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of pipeline anticorrosion, in particular to a steel pipeline anticorrosion coating. Background technique [0002] At present, the materials used for the external anti-corrosion coating of steel pipelines generally include the following five types: polyethylene coating coating, fusion bonded epoxy coating, epoxy coal tar pitch coating, petroleum bitumen coating, polyethylene tape coating coating Layer, between the coatings is wound glass fiber cloth as the strength layer, according to the anti-corrosion grade, it can be wound multi-layer, and the preparation method is generally to use manual winding and brushing on the steel pipe on site, or put the anti-corrosion coating The anti-corrosion tape is made to be wound on the steel pipe. This kind of manual on-site operation construction has a long production cycle, high labor intensity, harsh construction environment, and poor quality control. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/08C08G18/36C08G18/64
Inventor 王云华
Owner 丹阳博亚新材料技术服务有限公司