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Preparation method of additive for raising lubrication and antirust performance of cutting fluid

A technology of anti-rust performance and additives, applied in lubricating compositions, petroleum industry, etc., can solve the problems of poor lubricity and unsatisfactory effect, etc.

Inactive Publication Date: 2013-11-06
JIANGSU FEITUO INTERFACE ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of synthetic water-based cutting fluids is poor lubricity. The water-soluble lubricants currently used such as oleic acid soap are not ideal in improving the lubricity of synthetic water-based cutting fluids, and have not completely solved the problem of synthetic water-based cutting fluids. The problem of poor fluid lubricity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A method for preparing additives for improving the lubricating and antirust properties of cutting fluids. Add 360kg of propylene glycol block polymer to the reaction kettle for stirring, turn on the electric heating switch and heat to 100°C, add 60kg of dodecanedibasic acid, and then Open the nitrogen valve, continue heating, control the reaction temperature at 230° C., keep it for 5 hours, and obtain the product with an acid value of 22 mgKOH / g, and obtain the finished product.

Embodiment 2

[0015] A method for preparing additives for improving the lubricating and antirust properties of cutting fluids. Add 400kg of polyether F-6 to the reaction kettle for stirring, turn on the electric heating switch and heat to 100°C, and add 60kg of undecanoic dibasic acid , and then open the nitrogen valve, continue heating, control the reaction temperature between 225° C., keep it for 6 hours, obtain the acid value of the product at 24 mgKOH / g, and obtain the finished product.

Embodiment 3

[0017] A method for preparing additives for improving the lubricating and antirust properties of cutting fluids. Add 480kg of propylene glycol block polyether to the reaction kettle for stirring, turn on the electric heating switch and heat to 100°C, and add 60kg of undecanoic dibasic acid , and then open the nitrogen valve, continue heating, control the reaction temperature between 235° C., keep it for 4 hours, obtain the acid value of the product at 23 mgKOH / g, and obtain the finished product.

[0018] The advantage of the present invention is: the additive prepared by the long carbon chain dibasic acid and polyether through a certain synthesis process has both the lubricating performance of polyether and the antirust performance of long carbon chain dibasic acid, and the additive is green and environmentally friendly. It is biodegradable in cutting fluids and achieves zero emissions, making it an ideal substitute for base oils.

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Abstract

The invention discloses a preparation method of an additive for raising lubrication and antirust performance of a cutting fluid. The preparation method is characterized by comprising the following steps: adding polyether into a reaction vessel and stirring, turning on an electric heating switch to heat to 100 DEG C, adding long-chain diacid according to the mass ratio of the long-chain diacid to polyether being 1-6:8, opening a nitrogen valve, continuously heating, controlling the reaction temperature to 200-250 DEG C and keeping for 4-6h, and measuring acid value of a product. A finished product is obtained if the acid value of the product is in the acceptable range. The invention has the following advantages: the additive prepared from the long-chain diacid and polyether through a certain synthesis technology has both lubrication performance of polyether and antirust performance of the long-chain diacid; the additive is green and environmentally friendly; the additive is biodegradable if added into a cutting fluid so as to achieve zero emission; and the additive is an ideal substitute for base oil.

Description

technical field [0001] The invention relates to an additive for metal processing fluid, in particular to a preparation method of the additive for improving the lubricating and antirust performance of cutting fluid. Background technique [0002] Due to the shortage of petroleum energy and the enhancement of environmental awareness, and the synthetic water-based cutting fluid has excellent economy, cooling and safety, it has developed rapidly and is widely used in cutting, grinding and tapping. and other metal processing fields. However, the disadvantage of synthetic water-based cutting fluids is poor lubricity. The water-soluble lubricants currently used such as oleic acid soap are not ideal in improving the lubricity of synthetic water-based cutting fluids, and have not completely solved the problem of synthetic water-based cutting fluids. The problem of poor fluid lubricity. Therefore, the development of water-soluble lubricating additives with excellent performance is th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/00C10M145/24C10N30/06C10N30/12
Inventor 匡登云郑建周汉涛周德龙
Owner JIANGSU FEITUO INTERFACE ENG TECH CO LTD
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