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Stick-proof anti corrosion paint for internal wall of water steam pipeline

A technology for anti-corrosion coatings and water vapor pipelines, which is applied in anti-corrosion coatings, pipeline anti-corrosion/rust protection, pipeline protection, etc. It can solve problems such as inability to use in large-scale production, complex construction and operation process requirements, and inability to achieve long-term economy. Achieve the effects of easy implementation, outstanding alkali resistance and salt spray resistance, and scientific and reasonable preparation methods

Inactive Publication Date: 2006-01-25
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are a lot of researches on the anti-corrosion paint on the inner wall surface of water vapor pipes at home and abroad. Although the performance of some products can meet the requirements of use, the construction technology is relatively complicated and cannot be used in large-scale production; , its alkali resistance and heat resistance are poor, and it cannot achieve the purpose of long-term economy, and more benzene solvents are used, which are easy to cause harm to the human body and the environment
[0003] Chinese patent 95117902.0 discloses a "thick-film type primary film-forming anti-corrosion coating", which is to add a certain amount of long-chain aliphatic hydrocarbons to component A containing epoxy resin, and toluene and ethanol are used as solvents. Toluene, only suitable for anticorrosion of oil field sewage pipes
Chinese patent 01127241.4 discloses an "APP steel pipe anticorrosion coating". Crude benzene or xylene is used as a solvent, which will also cause harm to the human body and the environment, and the coating has poor temperature resistance
Chinese patent 01100491.6 discloses a "drinking water pipe and container inner coating anti-corrosion material", which is a two-component anti-corrosion material mainly composed of modified epoxy resin and modified polyamide. Two-component coatings have complex requirements for construction operations, and the paint film after curing has poor alkali resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) take by weighing 79 grams of epoxy resin, 10 grams of chlorinated rubber and add in the reactor, add 65 grams of mixed solvent, heat and stir until fully dissolved; (2) take by weighing 16 grams of rosin modified phenolic resin, 8 Add 22 grams of tert-butylphenol-formaldehyde resin into the reactor, add 22 grams of mixed solvent, heat and stir until fully dissolved; (3) take 46 grams of iron red, 50 grams of talcum powder, and 8.6 grams of fumed silica and fully mix and stir, then add Completely dissolved epoxy resin and chlorinated rubber are ground, dispersed, and filtered; (4) add phenolic resin solution and 13 grams of mixed solvent, and stir evenly to obtain an anti-sticking and anti-corrosion coating. The volume ratio of the mixed solvent is ethanol:cyclohexanone:butanol=1:1:1.

Embodiment 2

[0022] Embodiment 2: (unit: gram)

[0023] Epoxy 78 Iron Red 40

[0024] Chlorinated Rubber 6 Talc 48

[0025] Rosin modified phenolic resin 17 Fumed silica 12

[0026] tert-butylphenolic resin 8.5 mixed solvent 100

Embodiment 3

[0027] Embodiment 3: (unit: gram)

[0028] Epoxy 67 Iron Red 37

[0029] Chlorinated Rubber 3 Talc 40

[0030] Rosin modified phenolic resin 15.3 Fumed silica 12.5

[0031] Tert-butylphenolic resin 7.7 Mixed solvent 100

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PUM

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Abstract

The invention discloses a method to manufacture anti-sticking antisepsis coating material used in water or gas pipeline. It is made up of film forming resin, filling, assistant agent, dispersing agent, and compounding solution. The main ingredients in film forming resin are epoxy resin, chlorinated rubber, and phenol-formaldehyde resin. The filling is made up from iron red, and talcum powder. The assistant agent is gas phase SiO2. And the compounding solution is made up from ethanol, cyclohexanol, butyl alcohol. The coating material has the advantages of easy to be manufactured, strong adhesive force, good tenacity, steady capability, and so on.

Description

technical field [0001] The invention relates to an anti-sticking and anti-corrosion coating in a water vapor pipeline and a preparation method thereof. Background technique [0002] As we all know, the surface of the inner wall of the water vapor pipe is the most severely corroded area in the water vapor pipe. It has been subjected to the alternating changes of cold and hot water vapor for a long time. It must be strong, resistant to cold, hot, dry and wet, mechanical friction of water vapor, water resistance, chemical resistance, and excellent temperature resistance. It must also take into account certain anti-fouling properties in order to achieve the effect of anti-corrosion and anti-sticking. At present, there are a lot of researches on the anti-corrosion paint on the inner wall surface of water vapor pipes at home and abroad. Although the performance of some products can meet the requirements of use, the construction technology is relatively complicated and cannot be us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08F16L58/02
Inventor 贾均红张定军陈建敏周惠娣冶银平
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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