A kind of antirust agent for heating and ventilating pipe surface layer for commercial use and its preparation method and application

A ventilation pipe and anti-rust agent technology, which is applied in coatings, anti-corrosion coatings, paints containing biocides, etc., can solve the problems of toxicity of anti-rust agents, easy combustion of anti-rust agents, and environmental pollution, and achieve high cleanliness ratio , good anti-rust effect, stable chemical properties

Active Publication Date: 2017-12-26
JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the liquid antirust agent on the metal surface is toxic and pollutes the environment. The antirust agent is easy to burn and explode, and has damage to the equipment.

Method used

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  • A kind of antirust agent for heating and ventilating pipe surface layer for commercial use and its preparation method and application
  • A kind of antirust agent for heating and ventilating pipe surface layer for commercial use and its preparation method and application
  • A kind of antirust agent for heating and ventilating pipe surface layer for commercial use and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Prepare a kind of commercial heating and ventilating pipe surface layer antirust agent according to the following steps, and by weight:

[0027] Step 1: In the reactor, add 220 parts of deionized water and 12 parts of fatty alcohol polyoxyethylene ether sulfate triethanolamine salt, start the stirrer in the reactor, the rotating speed is 13rpm, start the heater in the reactor, and the temperature rises To 28°C, add 15 parts of dodecenyl succinic anhydride, 11 parts of N-ethyl p-toluenesulfonamide, stir evenly, and carry out esterification reaction for 5 hours; then add 14 parts of p-nitrosodimethylaniline to the reaction kettle Parts, 17 parts of 1-[(2-hydroxyethyl)amino]-4-(methylamino)-9,10-anthraquinone, adjust the pH range of the solution in the reactor to 4.8;

[0028] Step 2: Take another 14 parts of 2-amino-3-hydroxyanthraquinone, 11 parts of p-methoxybenzyl alcohol, and 19 parts of nano-sized lithium zirconate particles, grind and grind them, pass through a 400-...

Embodiment 2

[0033] Prepare a kind of commercial heating and ventilating pipe surface layer antirust agent according to the following steps, and by weight:

[0034] Step 1: In the reactor, add 445 parts of deionized water and 54 parts of fatty alcohol polyoxyethylene ether sulfate triethanolamine salt, start the stirrer in the reactor, the rotating speed is 59rpm, start the heater in the reactor, and the temperature rises To 39°C, add 124 parts of dodecenyl succinic anhydride, 28 parts of N-ethyl p-toluenesulfonamide, stir evenly, and carry out esterification reaction for 16 hours; then add p-nitrosoxylaniline 71 Parts, 78 parts of 1-[(2-hydroxyethyl)amino]-4-(methylamino)-9,10-anthraquinone, adjust the pH range of the solution in the reactor to 8.9;

[0035] Step 2: Take another 37 parts of 2-amino-3-hydroxyanthraquinone, 56 parts of p-methoxybenzyl alcohol, and 74 parts of nano-sized lithium zirconate particles, grind them, pass through a 500-mesh screen, and mix them evenly Gamma rays ...

Embodiment 3

[0040] Prepare a kind of commercial heating and ventilating pipe surface layer antirust agent according to the following steps, and by weight:

[0041] Step 1: In the reaction kettle, add 245 parts of deionized water and 12.54 parts of fatty alcohol polyoxyethylene ether sulfate triethanolamine salt, start the mixer in the reaction kettle, the speed is 13.59rpm, start the heater in the reaction kettle, the temperature Raise to 29°C, add 85 parts of dodecenyl succinic anhydride, 11.28 parts of N-ethyl-p-toluenesulfonamide, stir evenly, carry out esterification reaction for 5.16 hours; then add p-nitrosodimethylaniline into the reaction kettle 14.71 parts, 1-[(2-hydroxyethyl)amino]-4-(methylamino)-9,10-anthraquinone 17.78 parts, adjust the pH range of the solution in the reactor to 4.889;

[0042] Step 2: Take another 14.37 parts of 2-amino-3-hydroxyanthraquinone, 11.56 parts of p-methoxybenzyl alcohol, and 19.74 parts of nano-scale lithium zirconate particles, grind and grind t...

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Abstract

The invention discloses a commercial warm ventilating tube surface layer antirust agent, and a preparation method and application thereof. The commercial warm ventilating tube surface layer antirust agent consists of the following components in parts by weight: triethanolamine polyoxyethylene fatty alcohol sulfate, dodecenyl succinic anhydride, N-para toluene ethyl sulfonamide, p-nitroso-N,N-dimethylaniline, 1-[(2-ethoxy) amino]-4-( methylamino)-9,10-anthraquinone, 2-amino-3-hydroxyanthraquinone, methoxybenzyl alcohol, nanoscale lithium zirconate microparticles, 4,4'-diamino-3,3'-diethyl diphenylmethane, dodecyl trimethyl ammonium bromide, 3,3'-dimethyl biphenyl-4,4'-diisocyanate, benzotriazole-1-tri(trimethyl amine)-trifluorophosphate, N-(alpha-benzotriazole alkyl) carbamate, alpha-brominated n-hexylic acid, and deionized water. The commercial warm ventilating tube surface layer antirust agent has the advantages that the antirust agent is saponified at first, and the surface tension of elaioleucite is reduced, so that the elaioleucite on the surface of metal is attached firmly; and the antirust agent is stable in chemical property, wide in application, good in anti-rust effect and high in clean ratio of the surface of the metal.

Description

technical field [0001] The invention belongs to the field of antirust agents for the surface of heating and ventilating pipes, in particular to a commercially used antirusting agent for the surface of heating and ventilating pipes and its preparation method and application. Background technique [0002] At present, in the maintenance process of heating and ventilation ducts in large shopping malls, theaters, and auditoriums, a large amount of corrosion of the air ducts and residual rust and scale on the surface of the air ducts cause air short circuits, which seriously affect the delivery of fresh air and indoor ventilation. For this reason, the vast number of scientific and technological workers have tried to solve this problem, and have developed metal rust inhibitors with various components. However, the use of some antirust agents is not very ideal. [0003] For example, in the Chinese patent whose application number is CN200910096919.4, a kind of antirust agent for sta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/08C09D5/08C09D7/12C09D5/16
CPCC08K3/24C08K9/04C08K13/06C08K2201/003C08K2201/011C09D5/08C09D5/16C09D7/62C09D7/63C09D7/67C09D151/08
Inventor 申欢迎陈宏振褚宏熙苏长满徐红梅相里梅琴张丽娟高喜玲夏如杰万智华梁峙
Owner JIANGSU VOCATIONAL INST OF ARCHITECTURAL TECH
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