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A kind of preparation method of cuprous oxide modified carbon nanotube/paraffin composite material

A technology of carbon nanotubes and cuprous oxide, which is applied in the field of preparation of cuprous oxide-modified carbon nanotubes/paraffin composite materials, achieving the effects of uniform distribution, low equipment requirements, and low cost

Active Publication Date: 2019-07-26
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, the preparation of phase change energy storage composite materials by dispersing the nano metal oxide / carbon nanotube composite particles into paraffin with solid-liquid phase change properties has not been reported.

Method used

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  • A kind of preparation method of cuprous oxide modified carbon nanotube/paraffin composite material
  • A kind of preparation method of cuprous oxide modified carbon nanotube/paraffin composite material
  • A kind of preparation method of cuprous oxide modified carbon nanotube/paraffin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Mix copper formate tetrahydrate (2.26g, 0.01mol) and n-octylamine (2.58g, 0.02mol), and stir mechanically at 35°C and 100 rpm for 1h to obtain a mixture of copper formate-n-octylamine 4.84g (including 1.54g of copper formate, 2.58g of n-octylamine, and 0.72g of water).

[0046] (2) Add oleylamine (1.34g, 0.005mol), oleic acid (1.41g, 0.005mol), carboxylated carbon nanotubes (0.1g) to the copper formate-n-octylamine mixture (4.84 g), and adding paraffin (12 g), stirring continuously at 70° C. at a stirring speed of 300 rpm for 2 h to obtain a reaction mixture.

[0047] (3) Inject the reaction mixture obtained in step (2) into a 50mL three-necked flask, under the protection of nitrogen, under stirring at 200 rpm, heat and react at 150°C for 2h, and the obtained product is cuprous oxide modified carbon nanotubes / paraffin composite.

[0048] (4) Take part of the cuprous oxide-modified carbon nanotube / paraffin temperature-sensitive composite material and dissolve it ...

Embodiment 2

[0053] (1) Mix copper formate tetrahydrate (2.26g, 0.01mol) and n-octylamine (1.935g, 0.015mol), and stir mechanically at 45°C and 100 rpm for 2h to obtain a mixture of copper formate-n-octylamine 4.195g (including 1.54g of copper formate, 1.935g of n-octylamine, and 0.72g of water).

[0054] (2) Add oleylamine (1.34g, 0.005mol), oleic acid (1.41g, 0.005mol), carboxylated carbon nanotubes (0.15g) to the copper formate-n-octylamine mixture (4.195 g), and adding paraffin (12 g), stirring continuously at 60° C. and a stirring speed of 200 rpm for 2 h to obtain a reaction mixture.

[0055] (3) Inject the reaction mixture obtained in step (2) into a 50mL three-necked flask, under the protection of nitrogen, under stirring at 300 rpm, heat and react at 180°C for 1h, and the obtained product is cuprous oxide modified carbon nanotubes / paraffin composite.

[0056] image 3 It is a SEM photo with a magnification of 50,000 times after deparaffinization of the product obtained in thi...

Embodiment 3

[0059] (1) Mix copper formate tetrahydrate (1.13g, 0.005mol) and n-octylamine (1.6125g, 0.0125mol), and stir mechanically at 35°C and 100 rpm for 1.5h to obtain copper formate-n-octylamine 2.7425 g of the mixture (0.77 g of copper formate, 1.6125 g of n-octylamine, and 0.36 g of water).

[0060] (2) Oleylamine (2.68g, 0.01mol), oleic acid (2.82g, 0.01mol), carboxylated carbon nanotubes (0.20g) are added to the copper formate-n-octylamine mixture obtained in step (1) ( 2.7425), and paraffin (12 g) was added, and the mixture was continuously stirred for 3 h at 85° C. at a stirring speed of 400 rpm to obtain a reaction mixture.

[0061] (3) Inject the reaction mixture obtained in step (2) into a 50mL three-necked flask, under the protection of nitrogen, under stirring at 400 rpm, heat and react at 180°C for 3h, and the obtained product is cuprous oxide-modified carbon nanotubes / paraffin composite.

[0062] Figure 4 It is a SEM photo with a magnification of 50,000 times afte...

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Abstract

The invention relates to a method for preparing a cuprous oxide / carbon nano tube composite material in paraffin. The method include: mixing tetrahydrate copper formate and n-octylamine, sufficiently and evenly stirring and mixing, and performing reaction at 35-45 DEG C to obtain copper formate-n-octylamine complex; mixing the obtained formate-n-octylamine complex with the paraffin, a functional carbon nano tube and dual-dispersing stabilizer, and continuously stirring and sufficiently and evenly mixing at 60-85 DEG C to obtain reaction mixture; adding the reaction mixture into a reaction container, and performing complete reaction under nitrogen protection and continuous stirring to obtain a cuprous oxide modified carbon nano tube / paraffin composite material. The method has the advantages that the method is environmentally friendly, low in equipment requirement, simple to operate and low in cost, and the prepared composite phase-change material is even in distribution.

Description

[0001] (1) Technical field [0002] The invention relates to a preparation method of a nano-enhanced phase-change energy storage composite material with light-to-heat conversion function, that is, a preparation method of a cuprous oxide-modified carbon nanotube / paraffin wax composite material. [0003] (2) Background technology [0004] With the increasing use of fossil resources, it is becoming increasingly difficult for fossil energy to meet human needs. Solar energy, as an environmentally friendly, stable and renewable energy, plays a very important role in today's declining fossil energy. However, time and space constraints hinder the further development of this type of renewable energy, so it is necessary to devise a new method for more efficient utilization of solar energy. Phase change material (PCM) is a kind of material that uses the phase change temperature regulation mechanism to realize the storage and release of solar energy through the phase change of the energy s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/06
CPCC09K5/063
Inventor 徐斌王博诣周静罗书平
Owner ZHEJIANG UNIV OF TECH