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Preparation method of flexible optical/electric-thermal dual-response phase change cloth

A dual-response and flexible technology, applied in chemical instruments and methods, heat exchange materials, textiles and papermaking, etc., can solve the problem that carbon cloth cannot load storage heat transfer performance phase change core materials, etc., to ensure continuity and structure Integrity, improving light-to-heat conversion efficiency, improving the effect of poor light absorption

Active Publication Date: 2020-09-15
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, carbon cloth cannot be directly used as a photo / electrical-thermal dual-response phase change material, which is mainly limited by the fact that carbon cloth cannot support a phase change core material with heat storage and transfer properties.

Method used

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  • Preparation method of flexible optical/electric-thermal dual-response phase change cloth
  • Preparation method of flexible optical/electric-thermal dual-response phase change cloth
  • Preparation method of flexible optical/electric-thermal dual-response phase change cloth

Examples

Experimental program
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Effect test

Embodiment example 1

[0026] (1) Preparation of carbon cloth @MOF-5 carrier material:

[0027] Soak 2cm*3cm carbon cloth in 30mL concentrated HNO 3 In the solution, after reacting at 100°C for 3 hours, dry it in vacuum for 24 hours to obtain activated carbon cloth; place the activated carbon cloth (2cm*3cm) in 25mL DMF solvent containing 0.743g zinc nitrate hexahydrate and 0.207g terephthalic acid , and put it into a 50mL reactor. After reacting at 120 °C for 10 h, filter and wash with DMF three times, and dry at 80 °C for 24 h to obtain the carbon cloth @MOF-5 support material.

[0028] (2) Preparation of composite phase change materials:

[0029] Vacuumize the carbon cloth @MOF-5 (2cm*3cm) carrier material prepared above at 120°C for 8 hours to completely open the pores of the substrate. Dissolve 0.18g PEG2000 in 20mL ethanol to obtain a homogeneous phase change material solution. Then the carrier material was placed into the prepared phase change material solution, and then dried in an oven ...

Embodiment example 2

[0032] (1) Preparation of carbon cloth @IRMOF-3 carrier material:

[0033] Soak 2cm*3cm carbon cloth in 30mL concentrated HNO 3In the solution, after reacting at 100°C for 3 hours, vacuum-dried for 24 hours to obtain activated carbon cloth; put the activated carbon cloth (2cm*3cm) in a 30mL solution containing 0.892g zinc nitrate hexahydrate and 0.181g 2-aminoterephthalic acid DMF solvent, and put it into a 50mL reaction kettle. After reacting at 100 °C for 24 h, it was filtered and washed with DMF for 3 times, and dried at 80 °C for 24 h to obtain the carbon cloth @IRMOF-3 support material.

[0034] (2) Preparation of composite phase change materials:

[0035] Vacuumize 0.25g of the above-prepared carbon cloth @IRMOF-3 (2cm*3cm) carrier material at 120°C for 8 hours to completely open the pores of the matrix. 0.25 g octadecanoic acid was dissolved in 20 mL ethanol to obtain a uniform phase change material solution. Then the carrier material was put into the prepared phase...

Embodiment example 3

[0038] (1) Carbon cloth@MIL-101(Cr)-NH 2 Preparation of carrier material:

[0039] Soak 2cm*3cm carbon cloth in 30mL concentrated HNO 3 In the solution, after reacting at 100°C for 3 hours, vacuum-dried for 24 hours to obtain activated carbon cloth; place the activated carbon cloth (2cm*3cm) in a solution containing 1.6g of chromium nitrate nonahydrate and 0.72g of 2-aminoterephthalic acid and 0.4 g NaOH in 30 mL deionized water and place it in a 50 mL reaction kettle. After reacting at 150°C for 12h, filter and wash with DMF for 3 times, and dry at 80°C for 24h to obtain carbon cloth @MIL-101(Cr)-NH 2 carrier material.

[0040] (2) Preparation of composite phase change materials:

[0041] The above-prepared carbon cloth @MIL-101(Cr)-NH 2 (2cm*3cm) carrier material is vacuumized at 120° C. for 8 hours to completely open the pores of the substrate. 0.20 g octadecanoic acid was dissolved in 20 mL ethanol to obtain a uniform phase change material solution. Then the carrier...

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Abstract

The invention discloses flexible optical / electric-thermal dual-response phase-change cloth. The cloth takes carbon fiber cloth as a base and comprises a metal organic framework material growing on carbon fibers and a phase-change energy storage material adsorbed in the metal organic framework material. The invention further discloses a preparation method. The preparation method mainly comprises the following steps: (1) synthesizing a metal organic framework on the carbon fiber cloth in situ to obtain a carbon fiber cloth and MOFs carrier; and (2) adsorbing the phase-change material by a solution impregnation method to obtain the flexible optical / electric-thermal dual-response phase-change cloth. According to the flexible optical / electric-thermal dual-response phase-change cloth, through organic combination of the base cloth, the phase-change core material and MOFs, the defects that an organic phase-change material cannot achieve optical / electric response and thermal deformation and high-temperature leakage occur are effectively improved. The cloth has the advantages of high optical / electric-thermal conversion capability, high structural integrity, high cycle stability, excellent shear resistance, and wide application prospects.

Description

technical field [0001] The invention belongs to the field of nano-composite materials and composite phase-change materials, and in particular relates to a preparation method of a flexible photo / electric-thermal dual-response phase-change cloth. Background technique [0002] Renewable energy plays an important role in replacing the overexploitation and use of fossil fuels. Among them, solar energy, as an abundant and long-lasting renewable energy, has achieved remarkable application results in the fields of photoelectric conversion and photocatalysis. However, the above-mentioned solar energy systems are still limited by the problem of low energy conversion efficiency. If phase change materials that can simultaneously store and release heat energy are applied to the field of photothermal conversion, the utilization rate of solar energy will be effectively improved. However, most phase change materials have poor light absorption ability, and there is a problem of heat-induce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M15/53D06M13/188C08G83/00C09K5/06D06M101/40
CPCD06M15/37D06M15/53D06M13/188C08G83/008C09K5/063D06M2101/40
Inventor 李昂王戈袁福根
Owner SUZHOU UNIV OF SCI & TECH