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Composite ceramic material with phase-change temperature regulation function and preparation method and application thereof

A composite ceramic and organic phase technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of inability to play the role of phase change energy storage, thermal energy transmission, and energy storage materials unable to play the role of phase change energy storage. Good phase change energy storage function, the effect of isolating high temperature heat

Pending Publication Date: 2022-03-25
FOSHAN OCEANO CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, due to the low melting point of low-temperature energy storage phase-change materials, they cannot perform the function of phase-change energy storage after high-temperature firing. Therefore, low-temperature energy storage materials cannot be directly added to ceramic products for use. However, due to the thermal insulation structure, the thermal energy cannot be transmitted to the low-temperature energy storage material, so that the energy storage material cannot play the role of phase change energy storage.

Method used

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  • Composite ceramic material with phase-change temperature regulation function and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0043] A composite ceramic material, the composite ceramic material has a double-wrapped core-shell structure, wherein: the core of the core-shell structure is paraffin, and the shell layer of the core-shell structure includes a zinc oxide thermal insulation layer and a titanium dioxide protective layer from the inside to the outside; The average particle size of the composite ceramic material is 200-400nm.

[0044] A method for preparing a composite ceramic material, comprising the steps of:

[0045] (1) Add 8 grams of paraffin to 50 grams of water and 2 grams of sodium lauryl sulfate, stir at a speed of 6000r / min and a temperature of 70°C for 10 minutes; then add 4 grams of zinc acetate dihydrate dropwise and continue stirring for 5 minutes Finally, add a sodium hydroxide solution with a mass fraction of 3% to adjust the pH of the solution to 8, continue to stir for 1 hour, age for 3 hours, centrifuge, wash and dry to obtain a single-layer wrapping material;

[0046] (2) Ad...

Embodiment 2

[0051] A composite ceramic material, the composite ceramic material has a double-wrapped core-shell structure, wherein: the core of the core-shell structure is paraffin, and the shell layer of the core-shell structure includes a zinc oxide thermal insulation layer and a titanium dioxide protective layer from the inside to the outside; The particle size of the composite ceramic material is 400-600nm.

[0052] A method for preparing a composite ceramic material, comprising the steps of:

[0053] (1) Add 12 grams of paraffin into 75 grams of water and 3 grams of sodium dodecylsulfonate, and stir for 15 minutes at a speed of 7500r / min and a temperature of 80°C; then add 6 grams of zinc acetate dihydrate dropwise and continue stirring After 8 minutes, add sodium hydroxide solution with a mass fraction of 4.5% to adjust the pH of the solution to 8, continue stirring for 1.5 hours, age for 5.5 hours, centrifuge, wash and dry to obtain a single-layer wrapping material;

[0054] (2) A...

Embodiment 3

[0059] A composite ceramic material, the composite ceramic material has a double-wrapped core-shell structure, wherein: the core of the core-shell structure is paraffin, and the shell layer of the core-shell structure includes a zinc oxide thermal insulation layer and a titanium dioxide protective layer from the inside to the outside; The particle size of the composite ceramic material is 600-900nm.

[0060] A method for preparing a composite ceramic material, comprising the steps of:

[0061] (1) Add 16 grams of paraffin to 80 grams of water and 4 grams of sodium lauryl phosphate, and stir at a speed of 8000r / min and a temperature of 80°C for 20 minutes; then add 8 grams of zinc acetate dihydrate dropwise and continue stirring for 10 minutes Finally, add a sodium hydroxide solution with a mass fraction of 5% to adjust the pH of the solution to 9, continue to stir for 2 hours, age for 8 hours, centrifugally wash and dry to obtain a single-layer wrapping material;

[0062] (2)...

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Abstract

The invention belongs to the technical field of phase-change lightweight ceramic materials, and particularly discloses a composite ceramic material with a phase-change temperature adjustment function, a preparation method of the composite ceramic material and a lightweight ceramic tile. The composite ceramic material has a double-layer wrapped core-shell structure, an organic phase change material is contained in a core of the core-shell structure, and a shell layer of the core-shell structure comprises a heat insulation layer and a protection layer from inside to outside; the heat insulation layer contains zinc oxide, and the protection layer contains titanium dioxide. The preparation method comprises the following steps: adding paraffin into water and an anionic surfactant, mixing, dropwise adding zinc acetate dihydrate, adjusting the pH value to be alkaline, aging, washing and drying to obtain a single-layer wrapping material; adding the single-layer wrapping material into an ethanol solution and an ethyl orthotitanate solution, carrying out hydrothermal reaction, washing and drying to obtain the composite ceramic material. After the composite ceramic material is calcined at high temperature, the energy storage effect of the phase-change material can still be reserved, and the composite ceramic material is applied to a lightweight ceramic product, so that the lightweight ceramic product with phase-change temperature regulation is obtained.

Description

technical field [0001] The invention belongs to the technical field of phase-change lightweight ceramic materials, and in particular relates to a composite ceramic material with phase-change temperature regulation and its preparation method and application. Background technique [0002] Phase change energy storage can achieve short-term or long-term energy redistribution to effectively improve energy utilization efficiency, and has huge advantages in feasibility and economy, and has become one of the most promising forms of energy storage. The phase change material is the key factor to realize the phase change energy storage. The phase change material refers to the substance that changes the state of matter and can provide latent heat under the condition of constant temperature. The process of changing physical properties is called the phase change process. The variable material will absorb or release a large amount of latent heat. Among them: the materials that can be used...

Claims

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Application Information

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IPC IPC(8): C09K5/06C04B35/22C04B35/453C04B35/46C04B35/622C04B35/626C04B35/628
CPCC09K5/063C04B35/46C04B35/453C04B35/62605C04B35/62695C04B35/62821C04B35/22C04B35/622C04B2235/349C04B2235/3418C04B2235/3284C04B2235/96
Inventor 何敏铿柯善军田维马超
Owner FOSHAN OCEANO CERAMICS
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