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Shaped MOF-based composite phase change material and preparation method and application thereof

A composite phase change material, MOF technology, applied in heat exchange materials, chemical instruments and methods, etc., to achieve good heat transfer capacity, good thermal conductivity, and enhanced thermal conductivity.

Active Publication Date: 2019-11-22
SUZHOU ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method effectively overcomes the shortcomings of MOF materials that are not easy to form by growing MOF on metal foam, and at the same time improves the thermal conductivity of MOF-based composite phase change materials at low cost.

Method used

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  • Shaped MOF-based composite phase change material and preparation method and application thereof
  • Shaped MOF-based composite phase change material and preparation method and application thereof
  • Shaped MOF-based composite phase change material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0048] Cu-BTC based composite phase change material

[0049] 1) Select a 500-mesh copper sieve with a volume of 2cm×2cm×1mm, immerse the copper sieve in acetone, methanol, and deionized water for 30 minutes, and dry them in a blast oven at 60°C each time to obtain the substrate for Cu-BTC growth ;

[0050] 2) Fully dissolve 7.021g of copper nitrate and 3.063g of trimesic acid in a mixed solution of 25mL of water and 25mL of ethanol, stir vigorously at room temperature for 30min to obtain a uniform solution, then move it into the reaction kettle, Put it in an oven and react at 95°C for 15 hours. After the reaction product is centrifuged and washed, put it in an oven and dry it at 80°C for 8 hours to obtain Cu-BTC. Dissolve the dried Cu-BTC in water to obtain Cu-BTC mother liquor, wherein The molar ratio of dried Cu-BTC powder to water is 1:25.

[0051] 3) Preheat the copper sieve in step 1) at 100°C for 10 minutes, at this temperature, drop the Cu-BTC mother liquor prepared i...

Embodiment example 2

[0055] Cr-MIL-101-NH 2 matrix composite phase change material

[0056] 1) Select a 500-mesh copper sieve with a volume of 2cm×2cm×1mm, immerse the copper sieve in acetone, methanol, and deionized water for 30 minutes, and then dry it in a blast oven at 60°C each time to obtain Cr-MIL-101- NH 2 growth base;

[0057] 2) Fully dissolve 3.2 g of 2-aminoterephthalic acid and 3.2 g of chromium nitrate nonahydrate in 60 mL of deionized water, add 0.8 g of sodium hydroxide and stir vigorously at room temperature for 30 min to obtain a uniform solution, then Move it into the reaction kettle, put it in an oven and react at 150°C for 12 hours, and after the reaction product is washed by centrifugation, put it in an oven and dry it at 80°C for 8 hours to obtain Cr-MIL-101-NH 2 , the dried Cr-MIL-101-NH 2 Dissolve in water to get Cr-MIL-101-NH 2 Mother liquor, wherein the dried Cr-MIL-101-NH 2 The molar ratio of powder and water is 1:25.

[0058] 3) Preheat the copper sieve in step ...

Embodiment example 3

[0061] MOF-5 based composite phase change materials

[0062] 1) Select a 500-mesh copper sieve with a volume of 2cm×2cm×1mm, immerse the copper sieve in acetone, methanol, and deionized water for 30 minutes, and dry them in a blast oven at 60°C each time to obtain the substrate for MOF-5 growth. ;

[0063] 2) Fully dissolve 0.69g of terephthalic acid and 3.41g of zinc nitrate hexahydrate in 100mL of DMF, stir vigorously at room temperature for 30min to obtain a uniform solution, then move it into a reaction kettle and put it in an oven for 100 ℃ for 18 hours, the reaction product was centrifuged and washed, put in an oven and dried at 80℃ for 8 hours to obtain MOF-5, and the dried MOF-5 was dissolved in water to obtain MOF-5 mother liquor, in which the dried MOF- 5 The molar ratio of powder and water is 1:25.

[0064] 3) Preheat the copper sieve treated in step 1) at 100°C for 10 minutes, at this temperature, drop the MOF-5 mother liquor prepared in step 2) onto the surface ...

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PUM

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Abstract

The embodiment of the invention relates to a shaped MOF-based composite phase change material and a preparation method and application thereof. The shaped MOF-based composite phase change material comprises an MOF-based carrier and an organic phase change core material loaded on the MOF-based carrier, and the MOF-based carrier comprises foam metal and MOF covering the surface of the foam metal. According to the obtained shaped MOF-based composite phase change material, the shape and the size of the foam metal are controlled, so that the obtained shaped MOF-based composite phase change materialhas the shape and the size of the foam metal; and the foam metal is used as one part of the shaped MOF-based composite phase change material, and the foam metal has higher heat conductivity, so thatthe heat conductivity of the composite phase change material can be enhanced.

Description

technical field [0001] The invention relates to the field of composite phase change materials, in particular to a shaped MOF-based composite phase change material and its preparation method and application. Background technique [0002] Facing the increasingly severe energy crisis and environmental crisis, it is particularly important to develop efficient energy storage and conversion technologies. Composite phase change materials have attracted more and more attention in solving energy supply, transmission and energy conversion. Composite phase change materials have also been developed in innovative applications such as photothermal conversion, electrothermal conversion, magnetothermal conversion, and thermotherapy, in addition to traditional applications such as energy input and output by absorbing and releasing a large amount of heat during the phase transition process. . [0003] However, phase change materials have leakage problems during the phase change process. In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06C08G83/00
CPCC08G83/008C09K5/06
Inventor 王戈唐兆第高鸿毅董文钧高志猛
Owner SUZHOU ADVANCED MATERIALS CO LTD
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