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Multifunctional corrosion inhibitor and preparing method thereof

A corrosion inhibitor, multifunctional technology, used in additives, petroleum industry, lubricating compositions, etc., can solve the problem of single function of corrosion inhibitor

Active Publication Date: 2017-12-01
德旭新材料(广州)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention discloses a multifunctional corrosion inhibitor and a preparation method thereof, which can effectively solve the technical defect of existing corrosion inhibitors with single function

Method used

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  • Multifunctional corrosion inhibitor and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The method for preparing iron, aluminum, copper and alloy corrosion inhibitor thereof:

[0038] Based on the total volume of the multifunctional buffer, add successively 9% by mass percent of tall oleic acid diethanolamide phosphate, 36% by mass percent of dodecenyl succinic anhydride diethanolamide lithium salt, and 38% by mass Tall oleic acid diethanolamide borate, 16% isomeric oleic acid amide by mass, 0.3% benzotriazole by mass, 0.5% sodium benzoate by mass, 0.2% by mass The sodium molybdate is fully stirred with a stirrer until uniformly mixed, and is marked as Example 1.

Embodiment 2

[0040] The method for preparing iron, aluminum, copper and alloy corrosion inhibitor thereof:

[0041] Based on the total volume of the multifunctional buffer, add successively 7% by mass of tall oleic acid diethanolamide phosphate, 35% by mass of dodecenyl succinic anhydride lithium salt of diethanolamide, and 40% by mass Tall oleic acid diethanolamide borate, isomeric oleic acid amide of 17% by mass, benzotriazole of 0.4% by mass, sodium benzoate of 0.4% by mass, 0.2% by mass The sodium molybdate is fully stirred with a stirrer until it is evenly mixed, and it is marked as Example 2.

Embodiment 3

[0046] Referring to the corrosion test method in "GB6144-2010 Synthetic Cutting Fluid", the rust prevention and corrosion inhibition properties of cast iron, LY12 aluminum, red copper and brass H62 in Example 1, Example 2, Comparative Example 1 and Comparative Example 2 were tested.

[0047] 1. Configure working solution: respectively configure Example 1, Example 2, Comparative Example 1 and Comparative Example 2 (conventional corrosion inhibitor sodium silicate) into 0.5% corresponding working solution, wherein the solute in the working solution is the embodiment 1, embodiment 2, comparative example 1 and comparative example 2, solvent is tap water; Blank comparative example is tap water.

[0048] 2. Set the incubator to 55°C and preheat;

[0049] 3. After taking out the metal test piece, wash the anti-rust oil with absolute ethanol;

[0050] 4. After the metal test piece is dry, polish the surface with 400 mesh sandpaper so that there are no pits, scratches or rust on the s...

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PUM

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Abstract

The invention relates to the field of metal machining liquid, in particular to a multifunctional corrosion inhibitor and a preparing method thereof. The multifunctional corrosion inhibitor particularly comprises tall oil acid diethanolamide phosphate, a lithium salt compound, tall oil acid diethanolamide borate, isomeric oleic acid amide and an auxiliary additive; meanwhile, a metal for preparing the above multifunctional corrosion inhibitor is provided. The multifunctional corrosion inhibitor has an excellent corrosion inhibition effect on iron, aluminum, copper and alloys of the iron, the aluminum and the copper; and meanwhile, the good extreme pressure lubricity is achieved, the comprehensive performance is excellent, and the problem that corrosion inhibitor performance is single is solved. The multifunctional corrosion inhibitor can be directly diluted to be used for industrial cutting / grinding liquid and can also serve as a cutting fluid additive, the preparing method is easy to operate and low in cost, and the wide business prospect is achieved.

Description

technical field [0001] The invention belongs to the field of metal working fluids, in particular to a multifunctional corrosion inhibitor and a preparation method thereof. Background technique [0002] Metalworking fluid is a liquid used in metalworking, mainly for lubrication, cooling, rust prevention and cleaning. With the rapid development of the application of metalworking fluids and the improvement of requirements, corrosion inhibitors are increasingly concerned by the metal processing industry. Corrosion inhibitors with a single performance can no longer meet people's pursuit. Multifunctional corrosion inhibitors with superior comprehensive performance have become metal processing Liquid's new favorite. Most of the corrosion inhibitors currently on the market have relatively single performance. When they are applied in metalworking fluids, they often need to be compounded with various additives, which is costly and time-consuming and laborious to compound with various...

Claims

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Application Information

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IPC IPC(8): C23G5/036C10M141/12C10N40/20C10N30/12C10N30/06
CPCC10M141/12C10M2201/08C10M2207/141C10M2215/082C10M2215/223C10M2223/04C10M2227/061C10N2030/06C10N2030/12C10N2040/20C23G5/036C10N2010/02
Inventor 江存
Owner 德旭新材料(广州)股份有限公司
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