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A kind of high-efficiency energy storage composite phase change material and its preparation method

A composite phase change material and energy storage technology, which is applied in the field of high-efficiency energy storage composite phase change materials and its preparation, can solve the problems that have not yet been collected and discovered, and achieve reduced fluidity, enhanced heat conduction and adsorption, and reduced contact The effect of thermal resistance

Active Publication Date: 2016-08-17
SHANGHAI INST OF SATELLITE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no description or report of the similar technology of the present invention, and no similar data at home and abroad have been collected yet.

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  • A kind of high-efficiency energy storage composite phase change material and its preparation method
  • A kind of high-efficiency energy storage composite phase change material and its preparation method
  • A kind of high-efficiency energy storage composite phase change material and its preparation method

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Embodiment 1

[0044] This embodiment relates to a high-efficiency energy storage composite phase change material, which includes the following components in mass percentage content:

[0045]

[0046] In this embodiment, the purity of n-hexadecane is ≥99%, the phase transition temperature is 16.5±0.5°C, the purity of the oriented multi-walled carbon nanotubes is ≥95%, the outer diameter is 10nm, the length is 30nm, and the purity of carbon nanofibers ≥85%, outer diameter is 200nm, length is 5μm, silane coupling agent is analytically pure KH550.

[0047] This embodiment also relates to a method for preparing the aforementioned high-efficiency energy storage composite phase change material. The method includes the following steps: see the process flow chart figure 1 Shown:

[0048] Step 1. Weigh each component according to the mass percentage content of each component of the high-efficiency energy storage composite phase change material;

[0049] Step 2: Put the n-hexadecane into a beaker and heat it ...

Embodiment 2

[0053] This embodiment relates to a high-efficiency energy storage composite phase change material, which includes the following components in mass percentage content:

[0054]

[0055] In this embodiment, the purity of n-octadecane is ≥99%, the phase transition temperature is 16.5±0.5°C, the purity of oriented multi-walled carbon nanotubes is ≥95%, the outer diameter is 10nm, the length is 30nm, and the purity of carbon nanofibers ≥85%, outer diameter is 200nm, length is 5μm, silane coupling agent is analytically pure KH550.

[0056] This embodiment also relates to a method for preparing the aforementioned high-efficiency energy storage composite phase change material. The method includes the following steps: see the process flow chart figure 1 Shown:

[0057] Step 1. Weigh each component according to the mass percentage content of each component of the high-efficiency energy storage composite phase change material;

[0058] Step 2. Put the n-octadecane in a beaker and heat it in an ...

Embodiment 3

[0062] This embodiment relates to a high-efficiency energy storage composite phase change material, which includes the following components in mass percentage content:

[0063]

[0064] In this embodiment, the purity of n-octadecane is ≥99%, the phase transition temperature is 16.5±0.5°C, the purity of oriented multi-walled carbon nanotubes is ≥95%, the outer diameter is 10nm, the length is 30nm, and the purity of carbon nanofibers ≥85%, outer diameter is 200nm, length is 5μm, silane coupling agent is analytically pure KH550.

[0065] This embodiment also relates to a method for preparing the aforementioned high-efficiency energy storage composite phase change material. The method includes the following steps: see the process flow chart figure 1 Shown:

[0066] Step 1. Weigh each component according to the mass percentage content of each component of the high-efficiency energy storage composite phase change material;

[0067] Step 2. Put the n-octadecane in a beaker and heat it in an ...

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Abstract

The invention provides an efficient energy-storage composite phase transition material and a preparation method thereof. The efficient energy-storage composite phase transition material comprises, by mass, 92.5-94% of a base material, 5.7-7.2% of an oriented multi-walled carbon nanotube, 0.2% of a carbon nano-fiber, and 0.1% of a silane coupling agent. The preparation method of the efficient energy-storage composite phase transition material comprises the following steps: 1, weighing the above components according to the above mass percentages; 2, putting the base material in a beaker, and heating in an oven; 3, adding the weighed silane coupling agent into the base material, and stirring; and 4, sequentially adding the carbon nano-fiber and the oriented multi-walled carbon nanotube into the base material, mechanically dispersing, carrying out ultrasonic vibration, and carrying out vacuum heating. The composite phase transition material is a paste, and allows no obvious separation to appear after long-time dispose; and compared with the base material, the efficient composite phase transition material has a phase transition point change not exceeding 0.3DEG C, a freezing point change not exceeding 0.3DEG C, and an obviously increased heat conduction coefficient.

Description

Technical field [0001] The invention belongs to the field of spacecraft thermal control materials, in particular to a high-efficiency energy storage composite phase change material and a preparation method thereof. Background technique [0002] With the demand for communication, equipment system, professional technology development and improvement of research and development capabilities, the development of aircraft will move towards high-power, high-orbit, deep-space, high-precision, long-life, Wiener satellites, etc., among which high-power operating conditions appear Periodic short-term characteristics. The maximum heat flux density that ordinary heat pipes and phase change heat pipes can bear is 1~2w / cm 2 , And with the development of space technology, the Wiener satellite periodic short-term heat flux density will exceed 100w / cm 2 、The short-term heat flux density of the T / R components used by the U.S. Navy radar will reach 1000w / cm 2 , Such a high heat flux density is unaff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06
CPCY02P20/10
Inventor 王晓占季琨张丽新车腊梅陈砚朋蔡少辉
Owner SHANGHAI INST OF SATELLITE EQUIP