Polyoxyethane ether-based diethylene glycol borate polymer, preparation method thereof and environment-friendly water-soluble near-drycutting fluid prepared therefrom

A technology of polyoxyethylene ether-based diethylene glycol borate and diethylene glycol borate, which is applied in the direction of lubricating compositions, petroleum industry, additives, etc., to achieve good water solubility, reduced usage, and good polarity The effect of pressure and wear resistance

Active Publication Date: 2013-03-27
淮安市淮安区综合检验检测中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators.

Method used

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  • Polyoxyethane ether-based diethylene glycol borate polymer, preparation method thereof and environment-friendly water-soluble near-drycutting fluid prepared therefrom
  • Polyoxyethane ether-based diethylene glycol borate polymer, preparation method thereof and environment-friendly water-soluble near-drycutting fluid prepared therefrom
  • Polyoxyethane ether-based diethylene glycol borate polymer, preparation method thereof and environment-friendly water-soluble near-drycutting fluid prepared therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Step 1, weigh 124.136kg (2000mol) ethylene glycol and 61.83kg (1000mol) boric acid and add in the reaction kettle, fill with nitrogen protection, heat and stir to 160 ° C, keep stirring at constant temperature for 5 hours, and discharge the water generated by the reaction under reduced pressure to prepare two. Ethylene glycol borate A138kg (1000mol) for standby (the yield of the product in actual production is less than 100%, so the actual diethylene glycol borate obtained is less than 1000mol);

[0042] Step 2, the diethylene glycol borate A 138kg (1000mol) and 10kg potassium hydroxide that the reaction of step 1 generates is added in the polymerization still with the ice brine circulation cooling of about 0 ℃ and stirs, then in the polymerization still, feed nitrogen to change The air in the still, when nitrogen in the polymerization still maintains positive pressure, pushes 881kg (20000mol) of ethylene oxide into the polymerization still with a nitrogen feed tank, and...

Embodiment 2

[0047] Step 1, weigh 124.136kg (2000mol) ethylene glycol and 61.83kg (1000mol) boric acid and add in the reaction kettle, fill with nitrogen protection, heat and stir to 180°C, keep stirring at constant temperature for 4 hours, discharge the water generated by the reaction under reduced pressure, and prepare two. Ethylene glycol borate A138kg (1000mol) for standby (the yield of the product in actual production is less than 100%, so the actual diethylene glycol borate obtained is less than 1000mol);

[0048] Step 2, the diethylene glycol borate A138kg (1000mol) and 3kg potassium hydroxide that the reaction of step 1 generates is added in the polymerization still with the ice brine circulation cooling of about 0 ℃ and stirs, then feed nitrogen into the polymerization still to change The air in the kettle, when the nitrogen in the polymerization kettle maintains positive pressure, push 440.5kg (10000mol) of ethylene oxide into the polymerization kettle with a nitrogen feed tank, w...

Embodiment 3

[0053] Step 1, take by weighing 124.136kg (2000mol) ethylene glycol and 61.83kg (1000mol) boric acid and add in the reaction kettle, fill with nitrogen protection, heat and stir to 170°C, keep constant temperature stirring for 4.5 hours, discharge the water generated by the reaction under reduced pressure, and prepare two. Ethylene glycol borate A138kg (1000mol) for standby (the yield of the product in actual production is less than 100%, so the actual diethylene glycol borate obtained is less than 1000mol);

[0054]Step 2, the diethylene glycol borate A138kg (1000mol) and 7kg potassium hydroxide that the reaction of step 1 generates is added in the polymerization still with the ice brine circulation cooling of about 0 ℃ and stirs, then feed nitrogen into the polymerization still to change The air in the kettle, when the nitrogen in the polymerization kettle maintains positive pressure, push 660.75kg (15000mol) of ethylene oxide into the polymerization kettle with a nitrogen fe...

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Abstract

The invention provides a polyoxyethane ether-based diethylene glycol borate polymer, a preparation method thereof and an environment-friendly water-soluble near-drycutting fluid prepared therefrom. The polyoxyethane ether-based diethylene glycol borate polymer has a chemical formula shown in the specification, wherein n is an integer from 10 to 20. The preparation method of the polymer comprises the following steps of: reacting glycol and boric acid in a molar ratio of 2: 1 to obtain diethylene glycol borate, and then performing a polymerization reaction between the diethylene glycol borate and ethylene oxide in a molar ratio of 1: (10-20) to obtain the finished product. The environment-friendly water-soluble near-drycutting fluid comprises the following components in percentage by weight: 40-70 percent of polyoxyethane ether-based diethylene glycol borate polymer (containing polyethylene glycol, potassium borate and potassium hydroxide), 1-2 percent of potassium phosphate and the balance of deionized water. The environment-friendly water-soluble near-drycutting fluid disclosed by the invention has favorable cooling property and lubricating property; and the using amount of a lubricating agent which is matched with a near-drycutting lubricating device can be reduced to be below 5 percent, so that the purposes of energy saving and environmental friendliness are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal processing, and in particular relates to a polyoxyethylene ether-based diethylene glycol borate polymer, a preparation method thereof, and an environment-friendly water-soluble quasi-dry cutting fluid prepared from the polymer. Background technique [0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. . Today, when energy conservation, emission reduction, environmental protection, and green production are advocated, a new metal cutting process is urgently needed. Quasi-dry cutting technology is a new metal cutting technology developed in recent years, which is to use quasi-dry lubrication system for lubrication in...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C08G65/28C10M173/02C10M155/00C10N40/22C10N30/12
Inventor谭群华张乃庆
Owner淮安市淮安区综合检验检测中心