Copper alloy cutting fluid composition and preparation method thereof

A cutting fluid and composition technology, applied in lubricating compositions, petroleum industry, additives, etc., can solve the problems of cutting fluid blue, green, lack of copper ions, etc., to maintain pH value, enhance binding force, excellent slow release effect

Inactive Publication Date: 2019-04-30
上海樱花化研化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventional cutting fluids lack corrosion inhibitors for copper ions. At the same time, in order to maintain the pH value of the cutting fluid, a large amount of amine subst

Method used

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  • Copper alloy cutting fluid composition and preparation method thereof
  • Copper alloy cutting fluid composition and preparation method thereof
  • Copper alloy cutting fluid composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present embodiment provides a kind of preparation method of Mannich base, comprises the steps:

[0032] After mixing benzotriazole, 40wt% formaldehyde aqueous solution and diethylamine according to the mass ratio of 4:3:2, after reacting at room temperature, the crude product was obtained by distillation;

[0033] The crude product and absolute ethanol were subjected to alcohol precipitation according to the volume ratio of 1:3, the collected precipitate was extracted with absolute ethanol, and dried to obtain the Mannich base, which was named diethylaminomethylbenzene Triazole.

Embodiment 2

[0035] The present embodiment provides a kind of preparation method of Mannich base, comprises the steps:

[0036] After mixing benzotriazole, 40wt% formaldehyde aqueous solution and dimethylamine according to the mass ratio of 4:3:2, after reacting at room temperature, the crude product was obtained by distillation;

[0037] The crude product and dehydrated ethanol are subjected to alcohol precipitation according to the volume ratio of 1:3, the collected precipitate is extracted with dehydrated ethanol, and the Mannich base is obtained by drying, which is named as dimethylaminomethylbenzene Triazole.

Embodiment 3

[0039] The present embodiment provides a kind of preparation method of Mannich base, comprises the steps:

[0040] After mixing benzotriazole, 40wt% formaldehyde aqueous solution and morpholine according to the mass ratio of 4:3:2, after reacting at room temperature, the crude product was obtained by distillation;

[0041] The crude product and dehydrated ethanol are subjected to alcohol precipitation according to the volume ratio of 1:3, the precipitate is collected and extracted with dehydrated ethanol, and dried to obtain the Mannich base, which is named as morpholine methylbenzene Azole.

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Abstract

The invention provides a copper alloy cutting fluid composition which comprises the following components in parts by weight: 45-60 parts of white oil; 10-25 parts of sulfonated castor oil; 10-20 partsof sodium petroleum sulfonate; 1-3 parts of mannich base; 1-7 parts of liquid rosin; 1-5 parts of special amine; 0.5-5 parts of nonylphenol polyoxyethylene ether; 1-6 parts of branched fatty alcohol;0.2-1.4 parts of span -80 and 0.1-0.7 part of a defoaming agent. The copper alloy cutting fluid composition has the following beneficial effects: the mannich base is added as a corrosion inhibitor, so that the corrosion inhibition effect is achieved by adsorbing between benzotriazole rings in molecules and the copper surface; meanwhile, N atoms on amine groups provide lone pair electrons to be absorbed by the copper surface, the binding force of the corrosion inhibitor molecules and a metal is further enhanced, and the alkyl part on the amino groups in the molecules can effectively prevent the attack of corrosive ions in a medium.

Description

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Claims

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Application Information

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Owner 上海樱花化研化工科技有限公司
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