Green micro-emulsification metal machining liquid and preparation method thereof

A metal cutting fluid, micro-emulsification technology, applied in the petroleum industry, additives, lubricating compositions, etc., to achieve the effects of good biodegradability, superior defoaming performance, and good emulsion stability

Inactive Publication Date: 2012-08-01
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The base oil of cutting fluids in the past is generally prepared from petroleum as raw material to prepare micro-emulsion cutting fluids. Due to the poor biodegradability of mineral oil-based cutting fluids, it stays in water for a long time. and soil, it will cause adverse effects on the environment, and should not be used as the base oil of green cutting fluid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A green microemulsion metal cutting fluid, wherein each raw material component is calculated by weight percentage, and its composition and content are as follows:

[0048] Base oil 3g(20%)

[0049] Nonionic surfactant 7.5g (50%)

[0050] Anionic surfactant 0.75g (5%)

[0051] Rust inhibitor 0.75g (5%)

[0052] Couplant 0.45g(3%)

[0053] Corrosion and scale inhibitor 0.15g (1%)

[0054] Extreme pressure agent 0.75g(5%)

[0055] Defoamer 0.075g (0.5%)

[0056] Fungicide 0.075g (0.5%)

[0057] Water 1.5g (10%);

[0058] Described base oil is peanut oil;

[0059] The nonionic surfactant is a straight-chain fatty alcohol polyoxyethylene ether with a molecular weight of 422;

[0060] Described anionic surfactant is sodium petroleum sulfonate;

[0061] Described antirust agent is boric acid monoethanolamine;

[0062] Described coupling agent is ethylene glycol b...

Embodiment 2

[0072] A green microemulsion metal cutting fluid, wherein each raw material component is calculated by weight percentage, and its composition and content are as follows:

[0073] Base oil 3.75g (25%)

[0074] Nonionic surfactant 5.175g (34.5%)

[0075] Anionic surfactant 1.5g (10%)

[0076] Rust inhibitor 1.2g(8%)

[0077] Couplant 0.525g(3.5%)

[0078] Corrosion and scale inhibitor 0.075g (0.5%)

[0079] Extreme pressure agent 0.9g(6%)

[0080] Defoamer 0.045g (0.3%)

[0081] Fungicide 0.03g (0.2%)

[0082] Water 1.8g (12%).

[0083] Wherein, described base oil is synthetic ester (polyester, molecular weight is about 25000);

[0084] Described nonionic surfactant is branched chain fatty alcohol polyoxyethylene ether, molecular weight is 428;

[0085] Described anionic surfactant is Turkish red oil;

[0086] Described antirust agent is amide caproic acid triethanolamine salt;

[0087] Describe...

Embodiment 3

[0097] A green microemulsion metal cutting fluid, wherein each raw material component is calculated by weight percentage, and its composition and content are as follows:

[0098] Base oil 4.5g (30%)

[0099] Nonionic surfactant 4.5g (30%)

[0100] Anionic surfactant 1.2g (8%)

[0101] Rust inhibitor 1.125g (7.5%)

[0102] Couplant 0.45g(3%)

[0103] Corrosion and scale inhibitor 0.075g (0.5%)

[0104] Extreme pressure agent 1.035g (6.9%)

[0105] Defoamer 0.06g (0.4%)

[0106] Fungicide 0.06g (0.4%)

[0107] Water 1.995g (13.3%);

[0108] Wherein, described base oil is peanut oil;

[0109] The nonionic surfactant is an aromatic fatty alcohol polyoxyethylene ether with a molecular weight of 443;

[0110] Described anionic surfactant is sodium petroleum sulfonate;

[0111] The rust inhibitor is a mixture of ammonium sulfonate and borate in a mass ratio of 1:2, i.e. ammonium sulfonate: borate;

[0...

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PUM

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Abstract

The invention discloses green micro-emulsification metal machining liquid, which comprises materials by weight percentage: 20%-30% of base oil, 30%-50% of a nonionic surfactant, 5%-10% of an anion surfactant, 5%-8% of an antirusting agent, 3%-4% of a couplant, 0.5%-1% of a corrosion inhibition antisludging agent, 5%-6.9% of an extreme pressure agent, 0.3%-0.5% of an antifoaming agent, 0.2%-0.5% of bactericide and the balance water. The micro-emulsification metal machining liquid with plant oil and synthetizing ester as the base oil is excellent in antioxidation, obvious in abrasion resistance, capable of partial ecotoxicity of mineral oil, environmental-friendly, biodegradable, suitable for processing various materials and excellent in antirust performance on nonferrous metal.

Description

[0001] technical field [0002] The invention relates to a green microemulsion metal cutting fluid and a preparation method thereof. Background technique [0003] In the past, the base oil of cutting fluids was generally prepared from petroleum as raw material to prepare micro-emulsion cutting fluids. Due to the poor biodegradability of mineral oil-based cutting fluids, long-term retention in water and soil would cause adverse effects on the environment and should not be used as green cutting fluids. liquid base oil. Considering that in order to prolong the life cycle of cutting fluid, reduce its harm to people and environmental pollution. The biodegradability of synthetic hydrocarbons in synthetic oils is similar to that of mineral oils, while vegetable oils and synthetic esters have good biodegradability. [0004] purpose of invention [0005] The object of the present invention is to provide a kind of green microemulsion metal cutting fluid and its preparation m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10M173/02C10M173/00C10N30/06C10N30/12C10N30/18C10N40/22
Inventor 韩生吴志桥郁平孙揭阳高峰朱贤吴锡惠
Owner SHANGHAI INST OF TECH
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