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Composite phase-change material bag and preparation method thereof

A composite phase change material and a technology for phase change materials, which are applied in the field of composite phase change material packages and their preparation, can solve the problems of low heat conduction efficiency and easy liquid leakage, and achieve the effects of reducing environmental pollution, prolonging service life and being convenient to use.

Active Publication Date: 2018-05-29
BEIJING NAT BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to provide a composite phase change material package to alleviate the technical problems of low heat conduction efficiency and easy liquid leakage after the metal foam and phase change material are combined in the prior art

Method used

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Examples

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Effect test

Embodiment 1

[0048] The present embodiment is a kind of composite phase change material package, which is obtained by vacuum sealing the composite phase change material with an aluminum-plastic film, wherein the composite phase change material is a copper foam layer and a graphene layer alternately arranged in a layered structure, the described The copper foam metal layer contains paraffin, and the outermost layer of the composite phase change material is a graphene layer, that is, both sides of the composite phase change material are provided with graphene layers. Among them, there are 3 layers of copper foam metal layers, and 4 layers of graphene layers. The thickness of each layer of foamed copper metal layer is 0.3cm. The thickness of each graphene metal layer is 0.1 cm. The weight percentage of the phase change material in the foamed copper metal layer is 82%.

Embodiment 2

[0050] The present embodiment is a kind of composite phase change material package, which is obtained by vacuum sealing the composite phase change material with an aluminum-plastic film, wherein the composite phase change material is a copper foam layer and a graphene layer alternately arranged in a layered structure, the described The foamed copper metal layer contains stearic acid, and the outermost layer of the composite phase change material is a graphene layer, that is, both sides of the composite phase change material are provided with graphene layers. Among them, the copper foam metal layer is 4 layers, and the graphene layer is 5 layers. The thickness of each layer of foamed copper metal layer is 0.6cm. The thickness of each graphene metal layer is 0.2 cm. The weight percentage of the phase change material in the foamed copper metal layer is 84%.

Embodiment 3

[0052] The present embodiment is a kind of composite phase change material package, which is obtained by vacuum sealing the composite phase change material with an aluminum-plastic film, wherein the composite phase change material is a copper foam layer and a graphene layer alternately arranged in a layered structure, the described The copper foam metal layer contains lauric acid, and the outermost layer of the composite phase change material is a graphene layer, that is, both sides of the composite phase change material are provided with graphene layers. Among them, the copper foam metal layer is 4 layers, and the graphene layer is 5 layers. The thickness of each layer of foamed copper metal layer is 0.8cm. The thickness of each graphene metal layer is 0.3 cm. The weight percentage of the phase change material in the foamed copper metal layer is 86%.

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Abstract

The invention provides a composite phase-change material bag and a preparation method thereof and relates to the field of phase-change materials. The composite phase-change material bag is obtained byvacuum seal of an aluminum-plastic film and comprises a foam metal layer and a graphene layer which are alternately arranged in a laminated structure form; the foam metal layer contains a phase-change material. By using the composite phase-change material bag, the technical problems of low heat conduction efficiency and easiness in liquid leakage after foam metal and the phase-change material arecompounded in the prior art can be alleviated, and the aims of improving the heat conduction efficiency and reducing liquid leakage are achieved.

Description

technical field [0001] The invention relates to the technical field of phase change materials, in particular to a composite phase change material package and a preparation method thereof. Background technique [0002] Phase change materials are a general term for substances that use the massive endothermic and exothermic effects of materials during the phase change process for energy storage and temperature regulation. Phase change materials are widely used in building energy saving, road traffic, modern agricultural greenhouses, solar energy utilization, food refrigeration and transportation, medical care, electronic equipment heat dissipation, athletes cooling and warm clothing, special temperature control clothing, aerospace technology, military infrared camouflage, power transfer There are broad application prospects in many fields such as peak filling and valley filling, industrial waste heat storage and utilization, and heat energy recovery. [0003] With the continuo...

Claims

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Application Information

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IPC IPC(8): C09K5/06B32B15/04B32B15/20B32B15/08B65D30/02C23C16/26
CPCB32B15/043B32B15/08B32B15/20B65D31/00C09K5/063C23C16/26
Inventor 于强罗洪旭孙高峰李卓杨广敏
Owner BEIJING NAT BATTERY TECH
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