A kind of silicone oil electric compound grease and preparation method thereof

A power compound grease and silicone oil technology, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of low base oil dropping point, poor adhesion, etc., to improve viscosity, prevent oxidation, and have good dispersion. Effect

Inactive Publication Date: 2016-03-09
BEIJING GUODIAN FUTONG SCI & TECH DEV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the base oil drop point of the electric composite grease described in the prior art is low and the adhesion is poor, and then a kind of silicone oil electric composite grease is provided, which has high drop point temperature, good adhesion, good physical and chemical The advantages of stable performance, long service life and good economic performance, meanwhile, the invention also provides a preparation method of the electric composite grease

Method used

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  • A kind of silicone oil electric compound grease and preparation method thereof
  • A kind of silicone oil electric compound grease and preparation method thereof
  • A kind of silicone oil electric compound grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The present embodiment relates to the preparation method of described silicone oil, and this method comprises the steps:

[0073] (1) Add 100 parts by weight of octamethylcyclotetrasiloxane (hereinafter referred to as D 4 ), 1 weight part of hexamethylsiloxane (hereinafter referred to as MM) and the tetramethylammonium hydroxide silicon alkoxide catalyst of 0.5 weight part, the above-mentioned mixture is stirred under the stirring speed of 20 rev / mins, stirring While slowly raising the temperature to 95±5°C for 5 hours;

[0074] (II) then further warming up to 150°C and maintaining for 30 minutes;

[0075] (III) Vacuumize the interior of the reactor until the internal vacuum degree is greater than or equal to -0.08MPa, further heat the temperature to 180°C until there is basically no effluent, cool to room temperature, and stop the vacuum , the silicone oil with the following structure can be obtained after discharging:

[0076]

[0077] In the formula, n=238; m=0...

Embodiment 2

[0080] The present embodiment relates to the preparation method of described silicone oil, and this method comprises the steps:

[0081] (1) Add 100 parts by weight of D to the reaction kettle equipped with stirring, thermometer and reflux condenser 4 , 1.5 parts by weight of MM and 0.5 parts by weight of tetramethylammonium hydroxide silicon alkoxide catalyst, the above mixture is stirred at a stirring speed of 30 rpm, and the temperature is slowly raised to 100±5°C for 2.5 hours while stirring ;

[0082] (II) then further warming up to 150°C and maintaining for 30 minutes;

[0083] (III) Vacuumize the interior of the reaction kettle until the internal vacuum degree is greater than or equal to -0.08MPa. Under the condition, further heat the temperature to 200°C until there is basically no effluent, cool to room temperature, and stop Vacuum, and the silicone oil with the following structure is obtained when the material is discharged:

[0084]

[0085] In the formula, n=...

Embodiment 3

[0087] The present embodiment relates to the preparation method of described silicone oil, and this method comprises the steps:

[0088] (1) in the reactor that stirring, thermometer, reflux condenser are equipped with, add the D of 100 weight parts 4 , 1.7 parts by weight of MM and 0.5 parts by weight of tetramethylammonium hydroxide silicon alkoxide catalyst, the above-mentioned mixture is stirred at a stirring speed of 30 rpm, and the temperature is slowly raised to 100 ± 5 ° C for 4 hours while stirring ;

[0089] (II) then further warming up to 150°C and maintaining for 30 minutes;

[0090] (III) Vacuumize the interior of the reaction kettle until the internal vacuum degree is greater than or equal to -0.08MPa. Under the condition, further heat the temperature to 190°C until there is basically no effluent, cool to room temperature, and stop Vacuum, and the silicone oil with the following structure is obtained when the material is discharged:

[0091]

[0092] In the...

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Abstract

The invention discloses electric force compound grease and a preparation method thereof. The silicone oil electric force compound grease mainly comprises silicon oil, white carbon black and conductive metal powder, wherein the white carbon black is subject to surface treatment with a lipophilic processing agent. The silicone oil electric force compound grease comprises the following components in parts by weight: 100 parts of silicon oil, 20-33 parts of precipitated silica subject to the surface treatment with the lipophilic processing agent, 65-90 parts of conductive metal powder, 0-2 parts of stabilizing agent and 0-2 parts of anti-oxygen agent, or the silicone oil electric force compound grease is also composed of the following components in parts by weight: 100 parts of silicon oil, 10-15 parts of fumed silica subject to the surface treatment with the lipophilic processing agent, 65-90 parts of conductive metal powder, 0-2 parts of stabilizing agent and 0-2 parts of anti-oxygen agent. The silicone oil electric force compound grease disclosed by the invention has the advantages of high dropping point temperature, good attachment property, stable rationalizing property, long service life and good economic property.

Description

technical field [0001] The invention relates to a silicone oil power compound grease and a preparation method thereof, belonging to the technical field of special advanced materials for power protection. technical background [0002] Electric composite grease, also known as conductive paste, is a composite material applied on the contact surface of electric power connectors to reduce resistance, prevent corrosion and save power consumption. When the electrical joint is in operation, since the conductors at the joint are in point contact, the contact resistance is too large, which will cause overheating due to the sharp increase in the local loss of the joint. According to incomplete statistics, about 45% of the bolt clamp fittings have heating phenomenon. Due to the existence of heating phenomenon, the surface of these fittings has obvious burning and welding morphology, and even the fittings will be burned in serious cases; At the same time, if the electrical composite gre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/20H01B13/00C08L83/04C08K13/06C08K9/06C08K3/36C08K3/08
Inventor 王国刚强春媚苗文华刘振强周红伟冯圣玉张圣有
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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