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A kind of insulating grease containing fluorine silicone oil and preparation method thereof

A technology of fluorine-containing silicone oil and grease, applied in lubricating compositions, petroleum industry, thickeners, etc., can solve problems such as high viscosity-temperature coefficient, insufficient heat resistance and lubricity, low oil separation and friction coefficient , achieve the effects of small friction coefficient, increased stability and reduced interaction

Active Publication Date: 2020-01-21
SHENZHEN XUSHENG SANYI TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a kind of insulating grease containing fluorine silicone oil and its preparation method, which has the following advantages: the insulating grease has better high-temperature lubricating performance, higher resistance to Swellability and acid and alkali resistance, lower oil separation and friction coefficient; thus solving the problems of high viscosity-temperature coefficient, oil resistance, solvent resistance, heat resistance and insufficient lubricity existing in the existing silicone grease at one stroke; it can be widely used Used for component protection and lubrication in various harsh environments such as aviation, spaceflight, and cable accessories

Method used

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  • A kind of insulating grease containing fluorine silicone oil and preparation method thereof
  • A kind of insulating grease containing fluorine silicone oil and preparation method thereof
  • A kind of insulating grease containing fluorine silicone oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In a 5L vacuum kneader, add fluorosilicone oil (viscosity is 1000mPa·S, R is CF 3 ) 100 parts; add KH-5601 parts, fumed silica (20nm, 100m 2 / g) 18 parts, polytetrafluoroethylene (0.5um, 100m 2 / g) 20 parts, start kneading for 30min; add 2 parts of D3F to the kneader, organic bentonite (0.2um, specific surface area is 6m2 / g) 8 parts, 5 parts of silazane, 0.1 part of anti-corrosion agent benzotriazole, 0.2 part of industrial antifungal agent OBPA, start heating (maximum temperature does not exceed 150 ° C) and kneading, the temperature is constant at 130 ° C, after 80 minutes Vacuumize; stop heating after kneading for 30 minutes, stop kneading when the temperature drops to 50°C, and then pack the insulating grease finished product after cooling to room temperature.

Embodiment 2

[0035] In a 5L vacuum kneader, add fluorosilicone oil (viscosity is 15000mPa·S, R is CF 2 CF 3 ) 100 parts; add 1 part of 3-ureapropyltrimethoxysilane, fumed silica (20nm, 100m 2 / g) 8 parts, polytetrafluoroethylene (0.5um, 100m 2 / g) 30 parts, start kneading for 38 minutes; add 2 parts of D3F, 6 parts of polyethylene glycol, 3 parts of octamethylcyclotetrasiloxane, 0.1 part of anti-corrosion agent oxadiazole derivatives, industrial anti-mildew OBPA 0.2 parts, start heating (maximum temperature not exceeding 150°C) and kneading, keep the temperature constant at 150°C, and then vacuum after 100 minutes; stop heating after kneading for 50 minutes, stop kneading when the temperature drops to 55°C, and cool to room temperature After that, the output packaging of the finished insulation grease can be carried out.

Embodiment 3

[0037] In a 5L vacuum kneader, add fluorosilicone oil (viscosity is 30000mPa·S, R is CF 3 and CF 2 CF 2 CF 3 ) 100 parts, add 1 part of hexamethyldisiloxane, fumed silica (15nm, 100m 2 / g) 15 parts, polytetrafluoroethylene (0.5um, 100m 2 / g) 25 parts, start kneading for 45min; add CH to the kneader 3 SiCl 3 2 parts, 4 parts of organic bentonite, 4 parts of silazane, 0.1 part of anti-corrosion agent benzotriazole, 0.2 part of industrial antifungal agent OBPA, start heating (maximum temperature does not exceed 150 ℃) and kneading, the temperature is constant at 150 ℃, 120min Vacuum again; stop heating after kneading for 60 minutes, stop kneading when the temperature drops to 55°C, and then pack the insulating grease finished product after cooling to room temperature.

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Abstract

The invention relates to fluorine-containing insulated lubricating silicone grease and a preparation method thereof. The insulated lubricating silicone grease is prepared from the following raw materials in parts by weight: 100 parts of fluorosilicone oil, 8-60 parts of a thickening agent, 0.5-15 parts of a coupling agent, 0-12 parts of a creep resisting agent, 0-15 parts of a powder surface treating agent, 0-2 parts of a corrosion inhibitor and 0-10 parts of a mildew preventive. The insulated lubricating silicone grease has better high-temperature lubricating performance, higher anti-swelling performance and acid and alkali resistance, lower oil separation degree and a lower friction coefficient, so that the problems such as a great viscosity-temperature coefficient, oil resistance, solvent resistance, heat resistance and insufficient lubrication of current silicone grease are solved, and therefore, the fluorine-containing insulated lubricating silicone grease can be widely applied to protecting and lubricating parts under various severe environments such as aviation, spaceflight and cable accessories.

Description

technical field [0001] The invention relates to the technical field of silicone grease materials, more specifically, the invention relates to a fluorine-containing silicone oil insulating grease that can be used in aviation, spaceflight, cable accessories, etc. and a preparation method thereof. Background technique [0002] Fluorosilicone oil refers to polysiloxanes with fluoroalkyl groups in their side chains. Fluorosilicone oil has both the characteristics of silicone and organic fluoropolymer, and has low surface energy and excellent solvent resistance, oil resistance, wear resistance, weather resistance, oxidation resistance, high and low temperature resistance, etc., making it a leader in lubricating oils Those; because the hydrogen atoms are partially replaced by fluorine atoms on the side chain of the molecule, -F is a strong polar group. In the case of asymmetric molecular structure, the fluorosilicone oil has a certain polarity, so the oil resistance is excellent, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M107/50C10N30/12C10N30/16C10N40/16
CPCC10M107/50C10M113/00C10M119/22C10M133/44C10M133/48C10M169/00C10M2201/1013C10M2213/0626C10M2215/223C10M2215/225C10M2227/045C10N2030/12C10N2030/16C10N2040/16
Inventor 邱细妹余汉成居学成韩鹏
Owner SHENZHEN XUSHENG SANYI TECH
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