Castor oil modified multi-functional lubricant and preparation method thereof

A castor oil, multifunctional technology, applied in the field of castor oil modified multifunctional lubricant and its preparation, can solve the problems of high waste liquid treatment cost, easy precipitation, poor stability, etc., achieve the best lubrication and extreme pressure performance, avoid Environmental pollution, easily biodegradable effects

Inactive Publication Date: 2015-12-23
GUANGZHOU MIQI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the base oil used in water-based liquid is mainly oil-soluble mineral oil, but the compounded water-based liquid has complex components, poor stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Mix 400g of refined castor oil, 280g of PPG1000, 120g of adipic acid, and 0.8g of p-toluenesulfonic acid, and pass nitrogen protection. Slowly raise the temperature to 200°C and start timing. During the reaction, monitor the progress of the reaction by measuring the acid value and viscosity. After 8 hours of reaction, cool down to 140°C, vacuumize and dehydrate for half an hour, and the vacuum degree is -0.09MPa. The viscosity of the finished product is 420CST (100°C), and the acid value is 25.2.

Embodiment 2

[0020] Mix 400g of refined castor oil, 280g of PPG1000, 120g of adipic acid, and 1.6g of p-toluenesulfonic acid, and pass nitrogen protection. Slowly raise the temperature to 170°C and start timing. During the reaction, monitor the progress of the reaction by measuring the acid value and viscosity. After 20 hours of reaction, cool down to 140°C, vacuumize and dehydrate for half an hour, and the vacuum degree is -0.09MPa. The viscosity of the finished product is 452CST (100°C), and the acid value is 24.9.

Embodiment 3

[0022] Mix 400g of refined castor oil, 280g of PPG1000, 120g of adipic acid, and 0.16g of p-toluenesulfonic acid, and pass nitrogen protection. Slowly raise the temperature to 220°C and start timing. During the reaction process, the degree of progress of the reaction is monitored by measuring the acid value and viscosity. After 14 hours of reaction, the temperature is lowered to 140°C, and the vacuum is dehydrated for half an hour, and the vacuum degree is -0.09MPa. The viscosity of the finished product is 412CST (100°C), and the acid value is 25.4.

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PUM

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Abstract

The embodiment of the invention discloses a castor oil modified multi-functional lubricant prepared through a polymerization reaction of the following raw materials: refined castor oil, straight-chain or branched-chain dibasic acid and polypropylene glycol or polyethylene glycol; the invention also discloses a preparation method of the castor oil modified multi-functional lubricant. The method comprises the steps: mixing the refined castor oil, the straight-chain or branched-chain dibasic acid and polypropylene glycol or polyethylene glycol, introducing nitrogen for protection, adding a certain amount of a catalyst, undergoing the polymerization reaction at a certain temperature to a certain viscosity, cooling, vacuumizing and dewatering, and thus obtaining the finished product. Compared with a conventional lubricant base oil mineral oil, the castor oil modified multi-functional lubricant prepared by the method is a plant oil-based lubricant, is renewable, is biodegradable easily, has good lubricity and extreme pressure performance, is easy to emulsify, can be used as a lubricant to replace mineral oil and is ideally applied in oil-based and water-based metalworking fluid formulas.

Description

technical field [0001] The invention relates to the field of multifunctional lubricants, in particular to a castor oil modified multifunctional lubricant and a preparation method thereof. Background technique [0002] At present, the cutting fluids used in the metal processing industry are mainly pure oil, emulsified and semi-synthetic products with mineral oil as the base oil. Mineral oil is mainly extracted from petroleum, which is non-renewable and has poor biodegradability. It is the main source of atmospheric carbon emissions. one. At present, the stamping process of aluminum fins (air-conditioning fins) in the air-conditioning industry, taking the Pearl River Delta as an example, the air-conditioning industry consumes about 100,000 liters of volatile stamping oil (mainly composed of mineral oil fraction D80) a month on average. Accounting for about 20% of the total consumption, 500,000 liters of volatile stamping oil enters the atmosphere in the Pearl River Delta ever...

Claims

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Application Information

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IPC IPC(8): C08G63/676C10M107/32C10M145/38
Inventor 李少林
Owner GUANGZHOU MIQI CHEM
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