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Perylene bisimide derivative functional graphene/carbon nano tube composite thermal conductive thin film and preparation method thereof

A technology of peryleneimide and carbon nanotubes, which is applied in the field of peryleneimide derivative functionalized graphene/carbon nanotube composite heat-conducting film and its preparation, can solve the problem of low longitudinal thermal conductivity, low tensile strength, and preparation problems. Process complexity and other issues

Inactive Publication Date: 2019-10-11
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the graphene thermal conductive films reported so far still have the problems of complex preparation process, low longitudinal thermal conductivity and low tensile strength.

Method used

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  • Perylene bisimide derivative functional graphene/carbon nano tube composite thermal conductive thin film and preparation method thereof
  • Perylene bisimide derivative functional graphene/carbon nano tube composite thermal conductive thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] (1) Add 0.5g perylene anhydride, 5.5g polyethylene polyamine, 40mL xylene in a three-necked flask, reflux under N 2 Under protection, the temperature was raised to 80°C. After reacting for 10 hours, the solution was precipitated in 40mL of methanol, and the filter cake was washed with distilled water several times until the filtrate was neutral, and dried overnight at 60°C in a vacuum oven to obtain perylene imide Amine Derivatives (APBI).

[0025] (2) In a 250mL three-neck flask with a reflux device, add 0.8g of multi-walled carbon nanotubes (MWCNTs), then slowly add 120mL of concentrated nitric acid and 40mL of concentrated sulfuric acid, and stir the reaction at 50°C for 12h. After the reaction is completed, the mixed solution is filtered, and repeatedly centrifuged with deionized water to separate until neutral, and carboxylated multi-walled carbon nanotubes (c-MWCNTs) can be obtained.

[0026] (3) Take 1.0 g of graphene slurry with a solid content of 0.05 g, add 1...

Embodiment approach 2

[0028] (1) Add 1.0g perylene anhydride, 11g polyvinylpolyamine, 40mL xylene in a three-necked flask, reflux under N 2 Under protection, the temperature was raised to 80°C. After reacting for 12 hours, the solution was precipitated in 50mL of methanol, and the filter cake was washed with distilled water several times until the filtrate was neutral, and dried overnight at 60°C in a vacuum drying oven to obtain perylene imide Amine Derivatives (APBI).

[0029] (2) In a 250mL three-neck flask with a reflux device, add 0.8g of multi-walled carbon nanotubes (MWCNTs), then slowly add 120mL of concentrated nitric acid and 40mL of concentrated sulfuric acid, and stir the reaction at 50°C for 12h. After the reaction is completed, the mixed solution is filtered, and repeatedly centrifuged with deionized water to separate until neutral, and carboxylated multi-walled carbon nanotubes (c-MWCNTs) can be obtained.

[0030] (3) Take 1.0 g of graphene slurry with a solid content of 0.05 g, add...

Embodiment approach 3

[0032] (1) Add 1.0g perylene anhydride, 11g polyvinylpolyamine, 40mL xylene in a three-necked flask, reflux under N 2 Under protection, the temperature was raised to 80°C. After reacting for 12 hours, the solution was precipitated in 50mL of methanol, and the filter cake was washed with distilled water several times until the filtrate was neutral, and dried overnight at 60°C in a vacuum drying oven to obtain perylene imide Amine Derivatives (APBI).

[0033](2) In a 250 mL three-necked flask with a reflux device, 0.8 g of multi-walled carbon nanotubes (MWCNTs) was added, and then 120 mL of concentrated nitric acid and 40 mL of concentrated sulfuric acid were slowly added, and the reaction was stirred at 50 to 70 ° C for 12 to 24 h. After the reaction is completed, the mixed solution is filtered, and centrifuged and washed with deionized water repeatedly to obtain neutrality to obtain carboxylated multi-walled carbon nanotubes (c-MWCNTs).

[0034] (3) Take 1.0 g of graphene slu...

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Abstract

The invention provides a perylene bisimide derivative functional graphene / carbon nano tube composite thermal conductive thin film and a preparation method thereof. The thin film is a longitudinal bridging enhanced network formed by bridging highly oriented layered graphene and a perylene bisimide derivative through pi-pi stacking and a one-dimensional multi-walled carbon nanotube. The preparationmethod comprises the steps that (1), graphene, carbon nanotubes and perylene bisimide derivative with the mass ratio being (90-75):(10-25):(0.1-0.3) are mixed and stirred in deionized water, ultrasonic dispersion is uniform, suction filter is conducted, and a film is formed; (2), the film obtained in step (1) is pressed at the mechanical pressure being 8-15 MPa for 5-10 minutes, and the compositethermal conductive thin film can be obtained. According to the composite thermal conductive thin film, not only the longitudinal thermal conductivity is greatly improved, but also the mechanical properties are greatly improved; the defects that an existing graphene thin film is low in longitudinal thermal conductivity and poor in mechanical properties are overcome; meanwhile, the preparation process is simple, large-scale production is easy, and the thin film has broad application prospects.

Description

technical field [0001] The invention relates to the field of thin film material preparation, in particular to a perylene imide derivative functionalized graphene / carbon nanotube composite heat conducting film and a preparation method thereof. Background technique [0002] With the development of integration technology and microelectronic packaging technology, the total power density of electronic components continues to increase, while the physical size of electronic components and electronic equipment tends to be smaller and miniaturized, and the heat generated rapidly accumulates, leading to integration The heat flux around the device is also increasing, so the high temperature environment will definitely affect the performance of electronic components and equipment, which requires a more efficient thermal control scheme. Therefore, the heat dissipation problem of electronic components has evolved into a major focus of current electronic components and electronic equipment...

Claims

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Application Information

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IPC IPC(8): C09K5/14C01B32/168C01B32/194
CPCC01B32/168C01B32/194C01B2202/06C01B2202/24C01B2204/24C09K5/14
Inventor 陆绍荣任丽虞锦洪陆天韵张作才刘括彭庆元
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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