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A preparation method of photothermal conversion phase change energy storage microcapsules

A phase-change energy storage and light-to-heat conversion technology, which is applied in the direction of microcapsule preparation, microsphere preparation, heat exchange materials, etc., can solve problems such as easy leakage, achieve enhanced absorption, novel and unique technical methods, and no energy consumption scattered effect

Active Publication Date: 2021-08-10
武汉中科先进材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The same document "Novel stearic acid / graphene core–shell composite microcapsule as a phase change material exhibiting highshape stability and performance" also only adsorbs graphene on the surface of the phase change material through electrostatic interaction, and this structure is prone to leakage during the repeated phase change process

Method used

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  • A preparation method of photothermal conversion phase change energy storage microcapsules
  • A preparation method of photothermal conversion phase change energy storage microcapsules
  • A preparation method of photothermal conversion phase change energy storage microcapsules

Examples

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Embodiment 1

[0033] Take molybdenum disulfide 1mg / mL NMP solution 20mL, add 25mmol / L chloroauric acid aqueous solution 100 microliters and 0.1g / mL PMMA dichloromethane solution 100 microliters, centrifuge after ultrasonication for 2min to obtain the oil phase dispersion Molybdenum sulfide-gold material, disperse the material in dichloromethane and toluene, respectively, such as figure 1 As shown, it can be dispersed well. Such as figure 2 As shown, there are gold nanomaterials grown on the two-dimensional material. Take 20 mL of graphene oxide 10 mg / mL DMF solution, add 500 microliters of 25 mmol / L chloroauric acid aqueous solution and 200 microliters of 0.1 g / mL PMMA dichloromethane solution, and then centrifuge for 10 minutes to obtain the oil phase dispersed oxidation For the graphene-gold material, the material was dispersed in 10 mL of dichloromethane. Take 0.5g PMMA and 2g paraffin and dissolve in the above solvent to form an oil phase. Dissolve 0.1g of PVA (molecular weight 2W)...

Embodiment 2

[0035] Take molybdenum disulfide 1mg / mL NMP solution 20mL, add 25mmol / L chloroauric acid aqueous solution 100 microliters and 0.1g / mL PMMA dichloromethane solution 100 microliters, centrifuge after ultrasonication for 2min to obtain the oil phase dispersion Molybdenum sulfide-gold material, disperse the material in dichloromethane and toluene, respectively, such as figure 1 As shown, it can be dispersed well. Such as figure 2As shown, there are gold nanomaterials grown on the two-dimensional material. Take 20mL of NMP solution of bismuth selenide 5mg / mL, add 200 microliters of 25mmol / L chloroauric acid aqueous solution and 500 microliters of 0.1g / mL PMMA dichloromethane solution, and centrifuge for 5min to obtain the oil phase selenium Bismuth-gold material was dispersed in 20 mL of dichloromethane. Take 1g PMMA and 2g paraffin and dissolve in the above solvent to form an oil phase. Dissolve 0.5g of PVA (molecular weight 10W) ​​in 50mL of water to form the water phase. S...

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Abstract

The present invention uses the two-dimensional material as the base material to construct the oil-phase dispersed two-dimensional material-gold photothermal conversion material through a one-step method, and mixes the photothermal conversion material with paraffin as the core material, and prepares a photothermal conversion phase by solvent volatilization method Variable energy storage microcapsules. At the same time, the method has strong versatility, and the preparation process is controllable, so it has high industrial application value.

Description

technical field [0001] The invention relates to the field of preparation of microcapsule materials, in particular to a preparation method of photothermal conversion phase change energy storage microcapsules. Background technique [0002] Phase change microcapsules are tiny containers containing phase change materials. Its encapsulation technology has broad application prospects in aerospace, construction, automobile, environmental protection, textile and clothing, medical and health care, cooling of electronic devices, and military camouflage. At present, the common phase-change microcapsules are applications that use temperature changes to achieve their properties. In recent years, with the continuous development of technology, various new phase change microcapsules have been developed. As we all know, light is a substance existing in nature, which can generate heat. If photothermal conversion can be combined with phase change microcapsules, the comprehensive performance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/12C09K5/06
CPCB01J13/125C09K5/063
Inventor 喻学锋黄浩康翼鸿
Owner 武汉中科先进材料科技有限公司
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