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Inorganic nonmetal cladding high-temperature phase change heat storage microcapsule and preparation method thereof

An inorganic non-metallic, high-temperature phase change technology, applied in metal processing equipment, chemical instruments and methods, metal material coating technology, etc., can solve the problems of poor acid and alkali resistance and oxidation resistance, unsuitable for corrosion and oxidizing atmosphere , to achieve the effect of high yield, high heat storage density and uniform product quality

Active Publication Date: 2016-08-17
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem that the microcapsules in the prior art have poor acid and alkali resistance and oxidation resistance and are not suitable for corrosion and oxidizing atmospheres, the present invention aims to provide an inorganic non-metallic cladding high-temperature phase change heat storage microcapsule and its preparation method

Method used

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  • Inorganic nonmetal cladding high-temperature phase change heat storage microcapsule and preparation method thereof
  • Inorganic nonmetal cladding high-temperature phase change heat storage microcapsule and preparation method thereof
  • Inorganic nonmetal cladding high-temperature phase change heat storage microcapsule and preparation method thereof

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Embodiment 1

[0031] This embodiment provides an inorganic non-metallic cladding high temperature phase change heat storage microcapsule, its structure is as follows figure 1 As shown, it includes a titanium ball core 1, a loose pyrolytic carbon layer 2 and a dense pyrolytic carbon layer 3, wherein the loose pyrolytic carbon layer 2 surrounds the titanium spherical core 1, and the dense pyrolytic carbon layer 3 surrounds the loose pyrolytic carbon layer. Decarbonization layer 2 is set, and the specific preparation steps include:

[0032] S1, core preparation: choose a titanium ball with a diameter of 800 μm as the core. After being ultrasonically cleaned with acetone, deionized water and ethanol, the titanium ball core 1 was obtained by drying in a drying oven.

[0033] S2, preparation of loose pyrolytic carbon layer: put titanium spherical core 1 in a high-temperature fluidized bed chemical vapor deposition device, wherein the reaction gas is a mixture of acetylene and argon (volume ratio...

Embodiment 2

[0037] This embodiment provides another kind of inorganic non-metal cladding high temperature phase change heat storage microcapsules, its structure is as follows: figure 2 The corresponding optical micrographs are shown in image 3 As shown, it includes a copper ball core 10, a loose pyrolytic carbon layer 20, a dense pyrolytic carbon layer 30 and a silicon carbide layer 40, wherein the loose pyrolytic carbon layer 20 surrounds the copper ball core 10, and the dense pyrolytic carbon layer 30 is set around the loose pyrolytic carbon layer 20, and the silicon carbide layer 40 is set around the loose and dense pyrolytic carbon layer 30. The specific preparation steps include:

[0038] S1, core preparation: a copper ball with a diameter of 800 μm is selected as the core. After being ultrasonically cleaned with acetone, deionized water and ethanol, the copper ball core 10 is obtained by drying in a drying oven.

[0039] S2, preparation of loose pyrolytic carbon layer: the coppe...

Embodiment 3

[0044] This embodiment provides yet another inorganic non-metallic cladding high-temperature phase-change heat storage microcapsule, the structure of which includes an iron ball core, a loose pyrolytic carbon layer, a dense pyrolytic carbon layer, a silicon carbide layer and a zinc carbide layer, wherein, The loose pyrolytic carbon layer is set around the iron ball core, the dense pyrolytic carbon layer is set around the loose pyrolytic carbon layer, the silicon carbide layer is set around the loose and dense pyrolytic carbon layer, and the zinc carbide layer is set around the silicon carbide layer. The specific preparation steps include:

[0045] S1, core preparation: select an iron ball with a diameter of 800 μm as the core. After ultrasonic cleaning with acetone, deionized water and ethanol, the iron ball core was obtained by drying in a drying oven.

[0046] S2, preparation of loose pyrolytic carbon layer: the iron ball core is loaded into the high temperature fluidized b...

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Abstract

The invention relates to an inorganic nonmetal cladding high-temperature phase change heat storage microcapsule. The inorganic nonmetal cladding high-temperature phase change heat storage microcapsule comprises a metal phase change material microsphere, a loose pyrolytic carbon layer and a compact pyrolytic carbon layer. The metal phase change material microsphere is surrounded by the loose pyrolytic carbon layer, and the loose pyrolytic carbon layer is surrounded by the compact pyrolytic carbon layer. The diameter of the metal phase change material microsphere is 500-2000 [mu]m. The density of the loose pyrolytic carbon layer is 0.5-1.5 g / cm<3>. The density of the compact pyrolytic carbon layer is 1.8-2.0 g / cm<3>. The invention further provides a preparation method of the inorganic nonmetal cladding high-temperature phase change heat storage microcapsule. The inorganic nonmetal cladding high-temperature phase change heat storage microcapsule provided by the invention has the advantages of being large in heat storage density, good in heat cycling performance, resistant to high temperature, acid and alkali corrosion and oxidation and the like. According to the provided preparation method of the inorganic nonmetal cladding high-temperature phase change heat storage microcapsule, the product quality is uniform, the yield is high, and the preparation method is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of phase-change heat storage materials, and more specifically relates to an inorganic non-metallic cladding high-temperature phase-change heat storage microcapsule and a preparation method thereof. Background technique [0002] Energy storage research is a key issue for energy security and sustainable utilization. Phase change heat storage technology can effectively solve the mismatch between energy demand and supply in time and space, and can be widely used in solar thermal utilization, nuclear energy thermal utilization, and industrial waste heat. Recycling, building insulation and refrigeration and other fields. [0003] Phase change materials have unique latent heat properties. During the phase change process, they can absorb heat from the environment or release heat to the environment, so as to achieve the purpose of heat storage, transfer and release. Utilizing this characteristic can not only improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/02C23C16/26C09K5/06
CPCC09K5/063C23C16/26B22F1/16
Inventor 张锋林俊仲亚娟李子威
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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