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Antistatic heat-conducting silicone oil and synthetic method thereof

A heat-conducting silicone oil and synthesis method technology, applied in chemical instruments and methods, heat exchange materials, other chemical processes, etc., can solve the problem that volatility and antistatic properties cannot meet the requirements of use at the same time, and achieve abundant raw materials and easy control , good storage stability

Inactive Publication Date: 2018-10-16
广州盛泰诺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in some applications such as the cooling system of electric vehicle battery packs, volatility and antistatic properties often cannot meet the requirements of use at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of synthetic method of antistatic heat conduction silicone oil, comprises the following steps:

[0024] (1) React 5 g of isophorone diisocyanate, 5 g of polyethylene glycol (Mw=1000) and 100 g of dimethylcyclosiloxane at 80° C. for 1 h to obtain modified dimethylcyclosiloxane;

[0025] (2) Add 2g of lanthanum oxide, 3g of aminoethylaminopropyltriethoxysilane, 2g of divinyltetramethyldisiloxane, 1g of tetramethylhydroxide to the modified dimethylcyclosiloxane After the ammonium is uniformly dispersed by ultrasound, nitrogen gas is introduced for 10-15 minutes, and then in-situ ring-opening polymerization is carried out at 120°C. The polymerization time is 10 hours, and then decomposed and reacted at 140°C for 2 hours to obtain modified silicone oil;

[0026] (3) Add hydrochloric acid to the modified silicone oil system, adjust the pH of the system to be neutral, and then vacuumize it to remove low-volatile components (temperature is 210 ° C, vacuum degree is -0.09...

Embodiment 2

[0032] A kind of synthetic method of antistatic heat conduction silicone oil, comprises the following steps:

[0033] (1) React 10g of toluene diisocyanate, 20g of polyethylene glycol (Mw=400) and 100g of dimethylcyclosiloxane at 75°C for 2h to obtain modified dimethylcyclosiloxane;

[0034] (2) Add 2.5g scandium oxide, 3g aminoethylaminopropyltriethoxysilane, 2g divinyltetramethyldisiloxane, 1g tetramethylhydrogen to the modified dimethylcyclosiloxane After the ammonium oxide is uniformly dispersed by ultrasonic, nitrogen gas is introduced for 10-15 minutes, and then in-situ ring-opening polymerization is carried out at 100°C. The polymerization time is 5 hours, and then decomposed and reacted at 140°C for 3 hours to obtain modified silicone oil;

[0035] (3) Add hydrochloric acid to the modified silicone oil system, adjust the pH of the system to be neutral, and then vacuumize it to remove low-volatile components (temperature is 210 ° C, vacuum degree is -0.09), until no fra...

Embodiment 3

[0040] A kind of synthetic method of antistatic heat conduction silicone oil, comprises the following steps:

[0041] (1) React 10g of isophorone diisocyanate, 5g of polyether diol polyethylene glycol (Mw=800) and 100g of dimethylcyclosiloxane at 75°C for 1.5h to obtain a modified dimethylcyclosiloxane Silicone;

[0042](2) Add 1g of neodymium oxide, 4g of aminoethylaminopropylmethyldimethoxysilane, 2g of divinyltetramethyldisiloxane, 1g of tetramethyldisiloxane to the modified dimethylcyclosiloxane After the ammonium hydroxide is uniformly dispersed by ultrasonication, in-situ ring-opening polymerization is carried out at 135°C after passing nitrogen gas for 10-15 minutes. The polymerization time is 12 hours, and then decomposed and reacted at 145°C for 1.5 hours to obtain modified silicone oil;

[0043] (3) Add hydrochloric acid to the modified silicone oil system, adjust the pH of the system to be neutral, and then vacuumize it to remove low-volatile components (temperatur...

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Abstract

The invention relates to the technical field of organic synthesis, specifically to a synthetic method of antistatic heat-conducting silicone oil. The synthetic method of the antistatic heat-conductingsilicone oil comprises the following steps: (1) carrying out a reaction among diisocyanate, polyether glycol and dimethyl cyclosiloxane at a temperature of 60-90 DEG C for 0.5-3 hours to obtain modified dimethyl cyclosiloxane; (2) adding rare earth oxides, a silane coupling agent, an end-capping reagent and a catalyst into the modified dimethyl cyclosiloxane, performing uniform ultrasonic dispersion, introducing nitrogen for 10-15 minutes, performing in-situ ring opening polymerization at a temperature of 90-150 DEG C for 2-24 hours, and carrying out a decomposition reaction at a temperatureof 130-150 DEG C for 1-4 hours so as to obtain modified silicone oil; (3) uniformly mixing the modified silicone oil and ionic liquid, thereby obtaining the antistatic heat-conducting silicone oil. The antistatic heat-conducting silicone oil disclosed by the invention has excellent antistatic property and excellent thermal conductivity.

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to an antistatic heat-conducting silicone oil and a synthesis method thereof. Background technique [0002] Heat transfer oil has very important uses in industry. With the advancement of science and technology, higher requirements are placed on the heat resistance of heat transfer oil. The use temperature of mineral oil type heat transfer oil is relatively low, but its high temperature thermal stability is poor. Synthetic heat transfer oils are mostly aromatic hydrocarbons, biphenyls or diphenyl ether compounds. Although their thermal conductivity and thermal stability are excellent, they have relatively large toxic and side effects. [0003] Silicone oil is a kind of polysiloxane liquid oil with various viscosities, non-toxic, odorless, non-corrosive and non-flammable. Silicone oil is an organosiloxane polymer with Si-O-Si main chain structure and various substituents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/458C09K3/16C09K5/10
CPCC08G77/458C09K3/16C09K5/10
Inventor 邓万琼王彬张翼李波
Owner 广州盛泰诺新材料科技有限公司
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