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High temperature-resistant lubricating grease for electric conduction and preparation method thereof

A technology of high temperature resistant grease and perfluoropolyether, applied in lubricating compositions, petroleum industry, etc., can solve the problems of complex preparation method of conductive grease and unsatisfactory electrical conductivity, and achieve high electrical conductivity, excellent electrical conductivity and high temperature resistance Effect

Inactive Publication Date: 2015-03-25
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned problems in the prior art, the present invention provides a high-temperature-resistant grease for conduction and a preparation method thereof. The preparation method is too complicated and the electrical conductivity is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 0.5Kg of nano-silica and add it to 9Kg of perfluoropolyether, put it into a three-roller grinder, grind it fully for 4 hours, then add 300g of nano-titanium oxide, continue grinding for 6 hours, then add 10g of perfluoropolyether phosphate, and continue grinding 2h, according to need, carry out packing.

Embodiment 2

[0019] Take 0.8Kg of nano-silica and add it to 8Kg of perfluoropolyether, put it into a three-roller grinder, grind it fully for 3 hours, then add 300g of nano-titanium oxide, continue grinding for 6 hours, then add 8g of perfluoropolyether phosphate, and continue grinding 2h, according to need, carry out packing.

Embodiment 3

[0021] Take 1.0Kg of nano-silica and add it to 10Kg of perfluoropolyether, put it into a three-roll mill, grind it thoroughly for 3 hours, then add 500g of nano-titanium oxide, continue grinding for 6 hours, then add 10g of perfluoropolyetheramide, and continue grinding for 2 hours , and pack as needed.

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Abstract

The invention relates to high temperature-resistant lubricating grease for electric conduction. The high temperature-resistant lubricating grease comprises the following components in percentage by weight: 80%-95% of perfluoropolyether, 1%-10% of nanometer silicon dioxide, 2%-10% of nanometer metallic oxide and 0.01%-0.5% of anticorrosive additives, wherein a chemical formula of perfluoropolyether is shown as X-(CaF2aO)n-Y, X and Y inside the formula are same or different and selected from -CF3, -C2F5 or C3F7, n is an integer from 1 to 500, and a is an integer from 0 to 4. The invention also discloses a preparation method of the high temperature-resistant lubricating grease. The conductive grease disclosed by the invention has the advantages of relatively high conductive property, excellent corrosion resistance and high-temperature resistance.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a conductive material, in particular to a high-temperature-resistant lubricating grease for conduction and a preparation method thereof. Background technique [0002] Conductive grease is a kind of high-temperature and high-pressure fully synthetic grease, which contains special conductive additives. ) At the conductor connection, apply conductive grease to the contact surface of the conductor, which will increase the conductive contact surface, reduce the contact resistance and temperature, prevent oxygen, water vapor and other corrosive media from invading the contact area, and reduce the friction caused by aluminum oxide and copper oxide. The resulting high resistivity reduces the galvanic corrosion in the overlapping area. Therefore, in enterprises with strong corrosiveness such as high-voltage transmission, salt production and chemical industry, conductive greas...

Claims

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Application Information

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IPC IPC(8): C10M169/00C10M177/00C10N50/10
Inventor 裴素朋孙迎新韩生
Owner SHANGHAI INST OF TECH
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