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Composite type corrosion inhibitor

A corrosion inhibitor and composite technology, applied in the field of metal anti-corrosion, can solve the problems of insufficient adhesion, high price, poor corrosion resistance, etc., and achieve the effects of low cost, strong competitiveness and environmental friendliness

Inactive Publication Date: 2017-12-15
岳阳凯门水性助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the current organic corrosion inhibitors all have such or such problems as insufficient adhesion, high price, and poor corrosion resistance. It is necessary to provide a new type of corrosion inhibitor

Method used

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  • Composite type corrosion inhibitor
  • Composite type corrosion inhibitor
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 20 parts of ethylene glycol (by weight, the same below), 10 parts of water, 50 parts of oleyl hydroxyethyl imidazoline, 2 parts of tributyl phosphate, 1 part of triethyl phosphite, methyl-terminated poly Add 6 parts of ether (Mn=500) into the reaction vessel, heat to 50°C, stir for 1 hour, then add 11 parts of propynyl alcohol into the reaction vessel, stir at 50°C for 2 hours, cool to room temperature, and discharge.

Embodiment 2

[0072] 10 parts of propylene glycol (by weight, the same below), 20 parts of water, 8 parts of ethylene glycol butyl ether, 40 parts of tall oil hydroxyethyl imidazoline, 1 part of triphenyl phosphate, 1 part of triethyl phosphite Parts, 6 parts of methyl-terminated polyether (Mn=1000), add to the reaction vessel, heat to 50°C, stir for 1 hour, then add 14 parts of methyl butynol into the reaction vessel, stir at 50°C for 2h After that, cool to room temperature and discharge.

Embodiment 3

[0074] 15 parts of ethylene glycol (by weight, the same below), 20 parts of water, 45 parts of palm oil hydroxyethyl imidazoline, 2 parts of triethyl phosphate, 1 part of triphenyl phosphite, methyl-terminated poly Add 7 parts of ether (Mn=680) into the reaction vessel, heat to 50°C, stir for 1 hour, then add 10 parts of hexynol into the reaction vessel, stir at 50°C for 2 hours, cool to room temperature, and discharge.

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Abstract

The invention provides a composite type corrosion inhibitor. The composite type corrosion inhibitor consists of the following components in percentage by weight: 30-60% of hydroxyethyl imidazoline, 3-20% of alkynol, 10-50% of a solvent, 1-4% of a dispersing agent and 5-10% of modified terminated polyether, based on 100% in total. The composite type corrosion inhibitor provided by the invention can be used for a water-based metal anticorrosive paint system, can remarkably improve corrosion resistance of paint, and reduces production cost of the paint.

Description

technical field [0001] The invention relates to the technical field of metal anticorrosion, and more specifically relates to a composite corrosion inhibitor. Background technique [0002] Metal corrosion problems will cause huge economic losses and harm to industrial production. In the process of manufacturing highways and bridges, pipelines, automobiles, ships, storage tanks, etc., a large amount of steel is used, and corrosion problems will inevitably occur. Corrosion can lead to dangerous failures and increase costs in applications ranging from utilities to transportation. [0003] Three basic strategies are generally employed to provide corrosion protection to metal surfaces: [0004] 1) The coating acts as a barrier technology to prevent oxygen and water from reaching the metal surface; [0005] 2) Use corrosion inhibitors and pigments to passivate metal surfaces; [0006] 3) Protect by sacrificial metal method. [0007] The increasingly stringent supervision has p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/10
CPCC23F11/10
Inventor 赵秋菊卓耀文周海军
Owner 岳阳凯门水性助剂有限公司
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