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Microemulsion cutting fluid composition

A composition and cutting fluid technology, applied in lubricating compositions, petroleum industry, etc., can solve the problems of unstable emulsion, poor on-site sanitation, influence of filtration system, etc., and achieve excellent resistance to hard water stability and excellent anti-rust performance. Effect

Active Publication Date: 2017-12-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In hard water conditions, especially long-term water replenishment, a large amount of soap will be formed, and the accumulation of fatty acid soap will have a certain negative impact on the cutting fluid and machining process, which may lead to unstable emulsion and increase the consumption of concentrate
When soap is bonded together with foam, metal powder, miscellaneous oil and other components in the machine tool or in the centralized liquid supply system to form scum or even viscous substances, it will cause more problems. They float or accumulate on the In the working fluid, it will not only affect the filtration system, cause blockage, increase the consumption of filter paper, and poor sanitation on site, but also cause processing accuracy problems if it remains in the cutting tool, measuring tool and transmission system

Method used

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  • Microemulsion cutting fluid composition
  • Microemulsion cutting fluid composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Add 80g of ashless dispersant PIBSA-1 into a stirred 250ml reactor, according to the effective component polyisobutylene succinimide in PIBSA-1 and hexamethylene diisocyanate (HDI) molar ratio is 4:1 Add 0.96 g of hexamethylene diisocyanate (HDI), stir, and heat up to 90°C under a nitrogen atmosphere, react at this temperature for 3.5 hours, stop heating, and continue to pass nitrogen until the reactant is cooled to room temperature, and a transparent The polyisobutylene succinimide urea derivative TN-1 has a number average molecular weight of 6500 and a measured nitrogen content of 2.2%.

Embodiment 2

[0058] Add 80g of ashless dispersant PIBSA-1 into a stirred 250ml reactor, and add 1.92g of TDI according to the molar ratio of polyisobutylene succinimide and toluene diisocyanate (TDI), the effective component in PIBSA-1, as 2:1 , stirred, and heated to 105°C under a nitrogen atmosphere, reacted at this temperature for 4.5h, stopped heating, and continued to pass nitrogen until the reactant was cooled to room temperature to obtain a transparent polyisobutylene succinimide urea derivative TN- 2. The number average molecular weight is 11500, and the nitrogen content is 2.4%.

Embodiment 3

[0060] Add 80g of ashless dispersant PIBSA-2 into a stirred 250ml reactor, and add 7.68g of TDI according to the molar ratio of polyisobutylene succinimide to toluene diisocyanate (TDI) in PIBSA-2 as 1:2 , stirred, under nitrogen atmosphere, heated up to 70°C, reacted at this temperature for 2.5h, stopped heating, continued to pass nitrogen until the reactant was cooled to room temperature, and obtained transparent polyisobutylene succinimide urea derivative TN- 3. Its number average molecular weight is 35,000, and its nitrogen content is 3.6%.

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Abstract

The invention provides a microemulsion cutting fluid composition, a method for improving the anti-hard water stability of the microemulsion cutting fluid, and a method for improving the antirust performance of the microemulsion cutting fluid. The microemulsified cutting fluid composition of the present invention comprises an isocyanate dispersant, an emulsifier, a lubricating base oil and the balance of water, wherein the isocyanate dispersant is a reaction product of polyisobutylene succinimide and isocyanate. The microemulsified cutting fluid composition of the present invention has excellent stability against hard water and antirust performance, and can fully meet the requirements for use in areas with relatively high water hardness.

Description

technical field [0001] The invention relates to a microemulsion cutting fluid composition, in particular to a microemulsion cutting fluid composition with excellent hard water resistance stability and antirust performance. Background technique [0002] Cutting fluid plays the role of lubricating and cooling processing tools and components in the process of metal cutting, and its performance index directly affects the quality, efficiency and cost of cutting processing. Water-based metal cutting fluids came out in the 1940s. So far, the application of water-based metal cutting fluids in the cutting field has made great progress. Microemulsion cutting fluid consists of base oil, surfactant (emulsifier), water, rust inhibitor (including non-ferrous metal rust inhibitor), lubricant, extreme pressure agent, defoamer, mold inhibitor (fungicide), coupling agent etc. It is a new metalworking fluid product between emulsified oil and synthetic cutting fluid. The liquid form of microe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/00C10N40/22C10N30/12
Inventor 赵敏辛世豪黄作鑫段庆华
Owner CHINA PETROLEUM & CHEM CORP