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Low-cloud-point fully-synthetic metal working fluid containing polyether modified silicone oil and preparation method of low-cloud-point fully-synthetic metal working fluid

A polyether-modified silicone oil and metalworking fluid technology, applied in the petroleum industry, lubricating compositions, etc., can solve problems such as poor lubricity, achieve good lubricating performance, reduce wear, and enhance defoaming performance

Inactive Publication Date: 2020-08-07
HAFERD PETROLEUM ENERGY GUANGDONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing fully synthetic metalworking fluids mostly use polyether as a lubricant. Although polyether as a lubricant has the characteristics of low foam, its lubricity is usually poor

Method used

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  • Low-cloud-point fully-synthetic metal working fluid containing polyether modified silicone oil and preparation method of low-cloud-point fully-synthetic metal working fluid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for preparing a fully synthetic metalworking fluid containing polyether modified silicone oil with a low cloud point, comprising the following steps:

[0026] (1) Synthesis of self-made polyether modified silicone oil:

[0027] Accurately weigh hydrogen-containing silicone oil (1.6% hydrogen content) and allyl polyoxyethylene polyoxypropylene ether with a reaction molar ratio of 1:1.5, add chloroplatinic acid isopropanol solution, and condense at 115°C under reflux conditions Stir the reaction for 8 hours, then vacuum remove the isopropanol solution of chloroplatinic acid, add maleic anhydride (the molar ratio of maleic anhydride to hydroxyl group is 1:5), and raise the temperature to 135°C for 3 hours.

[0028] (2) Metalworking fluid composition:

[0029] Carboxylate amine antirust agent: 5%, alcohol amine: 3%, polyether modified silicone oil: 6%, auxiliary lubricant: 3%, composite metal corrosion inhibitor: 2.5%, cosolvent: 2%, disinfectant Foaming agent: 0...

Embodiment 2

[0032] A method for preparing a fully synthetic metalworking fluid containing polyether modified silicone oil with a low cloud point, comprising the following steps:

[0033] (1) Synthesis of self-made polyether modified silicone oil:

[0034] Accurately weigh hydrogen-containing silicone oil (1.6% hydrogen content) and allyl polyethylene glycol 700 with a reaction molar ratio of 1:1.2, add chloroplatinic acid isopropanol solution, and stir the reaction at 115°C under reflux conditions After 12 hours, the isopropanol solution of chloroplatinic acid was vacuum removed, maleic anhydride was added (the molar ratio of maleic anhydride to hydroxyl group was 1:2), and the temperature was raised to 135°C for 4 hours.

[0035] (2) Metalworking fluid composition:

[0036] Carboxylate amine antirust agent: 5%, alcohol amine: 5%, polyether modified silicone oil: 8%, auxiliary lubricant: 5%, composite metal corrosion inhibitor: 2.5%, cosolvent: 3%, disinfectant Foaming agent: 0.1%, deio...

Embodiment 3

[0039] A method for preparing a fully synthetic metalworking fluid containing polyether modified silicone oil with a low cloud point, comprising the following steps:

[0040] (1) Synthesis of self-made polyether modified silicone oil:

[0041] Accurately weigh hydrogen-containing silicone oil (0.75% hydrogen content) and allyl polyethylene glycol 2500 with a reaction molar ratio of 1:1.2, add isopropanol solution of chloroplatinic acid, and stir the reaction at 115°C under reflux conditions After 12 hours, the isopropanol solution of chloroplatinic acid was vacuum removed, maleic anhydride was added (the molar ratio of maleic anhydride to hydroxyl was 1:1), and the temperature was raised to 135°C for 5 hours.

[0042] (2) Metalworking fluid composition:

[0043] Carboxylate amine antirust agent: 5%, alcohol amine: 3%, polyether modified silicone oil: 15%, auxiliary lubricant: 8%, composite metal corrosion inhibitor: 2.5%, cosolvent: 5%, disinfectant Foaming agent: 0.1%, deio...

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Abstract

The invention discloses low-cloud-point fully-synthetic metal working fluid containing polyether modified silicone oil and a preparation method of the low-cloud-point fully-synthetic metal working fluid. The metal working fluid comprises the following components: 1%-10% of a carboxylic acid amine antirust agent, 1%-10% of alcohol amine, 5%-30% of polyether modified silicone oil, 1%-10% of an auxiliary lubricant, 0.5%-3% of a composite metal corrosion inhibitor, 1%-5% of a cosolvent, 0.1%-0.5% of a defoaming agent and the balance of deionized water. The polyether modified silicone oil providedby the invention has good water solubility and lubricity, and can greatly reduce the surface tension of the metal working fluid and enhance the permeability of the metal working fluid; the metal working fluid containing the polyether modified silicone oil has a lower cloud point than conventional polyether, and can be adsorbed on the surface of a workpiece more quickly to help film formation and reduce abrasion; in addition, the composition containing the polyether modified silicone oil can also be used as a release agent and has good release performance.

Description

technical field [0001] The invention relates to the technical field of metalworking fluids, in particular to a fully synthetic metalworking fluid containing polyether modified silicone oil with low cloud point and a preparation method thereof. Background technique [0002] Metalworking fluids are mainly liquids for metalworking, mainly for lubrication and cooling, and also for rust prevention and cleaning. Metal processing cutting fluid is a soluble lubricating oil with low foam and high lubricity. It can minimize maintenance costs even in environments with high requirements for processing fluids. It is basically applicable to all types of metals and alloys. Type of processing, it is very effective for general processing of most ferrous metals, especially when processing mild steel, cast iron, stainless steel and other special steels, it can play an excellent lubricating and cooling effect at the same time. [0003] Existing fully synthetic metalworking fluids mostly use po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M177/00C10N40/20C10N30/06C10N30/18
CPCC10M173/02C10M177/00C10M2207/02C10M2207/04C10M2207/10C10M2209/103C10M2209/104C10M2215/042C10M2215/102C10M2215/221C10M2215/223C10M2229/048
Inventor 刘彬隆
Owner HAFERD PETROLEUM ENERGY GUANGDONG CO LTD