High-temperature-resistant drag-reducing energy-saving heavy-duty anti-corrosion coating for thermal pipeline inner walls

A thermal pipeline and high temperature resistant technology, applied in the direction of anti-corrosion coatings, fire-proof coatings, epoxy resin coatings, etc., can solve the problems of increasing the operating costs of heating enterprises, polluting the environment with thermal energy circulating water, and increasing the cost of heating for residents. Low cost, reduce the number of pigging, and reduce the effect of impact

Active Publication Date: 2018-11-30
SHANGHAI HILONG SHINE NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these existing anti-corrosion methods will not only pollute the environment when the thermal energy circulating water is discharged, but also increase the operating costs of heating companies or increase the cost of heating for residents

Method used

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  • High-temperature-resistant drag-reducing energy-saving heavy-duty anti-corrosion coating for thermal pipeline inner walls
  • High-temperature-resistant drag-reducing energy-saving heavy-duty anti-corrosion coating for thermal pipeline inner walls
  • High-temperature-resistant drag-reducing energy-saving heavy-duty anti-corrosion coating for thermal pipeline inner walls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) A high-temperature-resistant, drag-reducing, energy-saving and heavy-duty anti-corrosion coating for the inner wall of a thermal pipeline contains two components, A and B, and the weight percentage of the A component is:

[0024] Novolak epoxy resin 20%, adopt Nan Ya epoxy resin NPPN-631, its epoxy equivalent is 168-178 (g / eq).

[0025] Silicone epoxy hybrid resin 30%, adopts SILIKOPON EF resin from Evonik Specialty Chemicals (Shanghai) Co., Ltd., and its epoxy equivalent is about 450 (g / eq).

[0026] 0.3% silicone-free polymer defoamer, BYK-057 product from BYK Chemical Company.

[0027] 0.7% polymer interpolymer dispersant containing pigment-affinity group is used AFCONA4570 product of Afcona Chemical Co., Ltd.

[0028] Hydrophobic fumed silica 0.35%, using R972 product from Evonik Degussa Specialty Chemicals Co., Ltd.

[0029] Castor oil modified derivative rheological additive 0.35%, using THIXATROL ST product of Hemings Deqian Chemical Company.

[0030] Modi...

Embodiment 2

[0057] (1) A high-temperature-resistant, drag-reducing, energy-saving and heavy-duty anti-corrosion coating for the inner wall of a thermal pipeline contains two components, A and B, and the weight percentage of the A component is:

[0058]Novolak epoxy resin 21%, (the product that adopts is with embodiment 1).

[0059] Organosilicon epoxy hybrid resin 21%, (the product that adopts is with embodiment 1).

[0060] Polymer defoamer 0.4% that does not contain organic silicon, (the product that adopts is the same as embodiment 1).

[0061] 0.6% polymer interpolymer dispersant containing pigment affinity group, (the product that adopts is the same as embodiment 1).

[0062] Hydrophobic fumed silica 0.42%, (the product that adopts is with embodiment 1).

[0063] Castor oil modified derivative rheology additive 0.5%, (the product that adopts is the same as embodiment 1).

[0064] Modified zinc phosphate 4.0%, (the product that adopts is with embodiment 1).

[0065] Aluminum tripo...

Embodiment 3

[0078] (1) A high-temperature-resistant, drag-reducing, energy-saving and heavy-duty anti-corrosion coating for the inner wall of a thermal pipeline contains two components, A and B, and the weight percentage of the A component is:

[0079] Novolak epoxy resin 30%, (the product that adopts is with embodiment 1).

[0080] Organosilicon epoxy hybrid resin 20%, (the product that adopts is with embodiment 1).

[0081] Polymer defoamer 0.5% that does not contain organic silicon, (the product that adopts is the same as embodiment 1).

[0082] 0.5% polymer interpolymer dispersant containing pigment affinity group, (the product that adopts is the same as embodiment 1).

[0083] Hydrophobic fumed silica 0.5%, (the product that adopts is with embodiment 1).

[0084] Castor oil modified derivatives rheology additive 0.8%, (the product that adopts is the same as embodiment 1).

[0085] Modified zinc phosphate 3.0%, (the product that adopts is with embodiment 1).

[0086] Aluminum trip...

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Abstract

The invention discloses a high-temperature-resistant drag-reducing energy-saving heavy-duty anti-corrosion coating for thermal pipeline inner walls. The coating contains two components of A and B, wherein the weigth percentages of the component A comprise: phenolic epoxy resin 20%-30%, organosilicone epoxy hybrid resin 20%-30%, silicone-free polymer defoamer 0.3%-0.5%, pigment-affine-group-containing polymer interpolymer dispersant 0.5%-0.7%, hydrophobic fumed silica 0.35%-0.5%, castor oil modified derivative rheological additive 0.35%-0.8%, modified zinc phosphate 3.0% to 5.0%, aluminum tripolyphosphate 2.0%-4.0%, mica powder 10.0%-20.0%, talcum powder 10.0%-15.0%, titanium dioxide 5.0%-10.0%, polytetrafluoroethylene powder 2.0%-5.0%, xylene 2.0%-7.0%, and n-butanol 1.0%-3.0%; and the weight percentages of the component B comprise: modified alicyclic amine 72.5%-75.5%, and aminoalkoxysilane 24.5%-27.5%. The coating can effectively protect thermal pipelines, and reduce maintenance andpipe cleaning frequency, and has a positive effect on urban central heating.

Description

technical background [0001] The invention relates to the technical field of industrial coatings, in particular to a heavy-duty anti-corrosion coating used for anti-corrosion, high-temperature resistance, drag reduction and energy-saving on the inner wall of thermal pipelines used for transporting high-temperature and high-pressure water in urban heating systems. Background technique [0002] With the rapid development of my country's national economy, the proportion of urbanization in the country is increasing year by year. Therefore, the scale and penetration rate of central heating in cities, especially northern cities, are showing an upward trend in winter. For urban central heating, the thermal energy "steam" generated by heating enterprises is transported to each specific user through the thermal pipeline of the urban heating pipeline network. Therefore, the thermal pipeline plays an important role in urban central heating: the thermal pipeline The quality and efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/61C09D7/62C09D7/63C09D7/65C09D5/08
CPCC08K2003/2241C08K2003/327C08K2003/328C08L2201/08C08L2203/18C08L2205/025C08L2205/03C09D5/08C09D5/18C09D163/00C09D7/61C09D7/62C09D7/63C09D7/65C08L63/00C08L27/18C08K13/06C08K3/32C08K3/36C08K3/34C08K3/22C08K5/544
Inventor 郭颖悟杜传芹周宝菊王勇军范东方张怡仁
Owner SHANGHAI HILONG SHINE NEW MATERIAL
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