Color carbon fiber thermal management device with structural color gradient and preparation method

A structural color, carbon fiber technology, applied in heating element materials, ion implantation plating, coatings, etc., can solve the problems of scarcity, monotonous color of wearable thermal management devices, etc., achieve fast sputtering rate, high color saturation, beautiful color effect

Active Publication Date: 2020-12-25
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of monotonous and scarce colors of wearable thermal management devices, the present invention provides a colorful carbon fiber flexible thermal management device with beautiful color and structural color gradient and its preparation method

Method used

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  • Color carbon fiber thermal management device with structural color gradient and preparation method
  • Color carbon fiber thermal management device with structural color gradient and preparation method
  • Color carbon fiber thermal management device with structural color gradient and preparation method

Examples

Experimental program
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Embodiment 1

[0042] This embodiment discloses a method for preparing a colored carbon fiber thermal management device with a structural color gradient, specifically as follows:

[0043] Put the carbon fiber cloth into acetone and then into ethanol for ultrasonic cleaning for 5 minutes respectively to remove oil and other impurities on the surface of the carbon fiber material, and then put the cleaned carbon fiber material in an oven to dry; then put the treated carbon fiber Put the cloth into 65% concentrated nitric acid and heat it at 65°C for 2 hours, so as to introduce -COOH, -OH and other oxygen-containing groups on the surface of the carbon fiber; then put the activated carbon fiber cloth into the magnetron sputtering instrument In the chamber, the background vacuum of the reaction chamber of the magnetron sputtering instrument was evacuated to 6×10 -4 Pa, argon is the working gas, the purity is 99.99%, the Ar gas flow rate is 20sccm, and the working pressure is 0.5Pa; the distance be...

Embodiment 2

[0045] This embodiment discloses a method for preparing a colored carbon fiber thermal management device with a structural color gradient, specifically as follows:

[0046] Put the carbon fiber cloth into acetone and then into ethanol for ultrasonic cleaning for 5 minutes respectively to remove oil and other impurities on the surface of the carbon fiber material, and then put the cleaned carbon fiber material in an oven to dry; then put the treated carbon fiber Put the cloth into 65% concentrated nitric acid and heat it at 65°C for 2 hours to introduce -COOH, -OH and other oxygen-containing groups on the surface of the carbon fiber; then put the activated carbon fiber cloth into the reaction chamber of the magnetron sputtering instrument In the chamber, the background vacuum of the reaction chamber of the magnetron sputtering instrument was evacuated to 6×10 -4 Pa, argon is the working gas, the purity is 99.99%, the Ar gas flow rate is 20sccm, the working pressure is 0.5Pa; th...

Embodiment 3

[0050] This embodiment discloses a method for preparing a colored carbon fiber thermal management device with a structural color gradient, specifically as follows:

[0051] Put the carbon fiber cloth into acetone and then into ethanol for ultrasonic cleaning for 5 minutes respectively to remove oil and other impurities on the surface of the carbon fiber material, and then put the cleaned carbon fiber material in an oven to dry; then put the treated carbon fiber Put the cloth into 65% concentrated nitric acid and heat it at 65°C for 2 hours, so as to introduce oxygen-containing groups such as -COOH and -OH on the surface of the carbon fiber; then put the activated carbon fiber cloth into the magnetron sputtering chamber , the background vacuum of the magnetron sputtering chamber was evacuated to 6×10 -4 Pa, argon is the working gas, the purity is 99.99%, the Ar gas flow rate is 20sccm, the working pressure is 0.5Pa; the distance between the target and the fabric substrate is 10...

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Abstract

The invention discloses a color carbon fiber thermal management device with structural color gradient and a preparation method, and belongs to the field of color thermal management devices. The structural color carbon fiber material is composed of a carbon fiber material serving as an inner core and a one-dimensional photonic crystal film which wraps the surface of the carbon fiber material and has a gradient structure. By controlling the thickness of a sputtered film layer, the structural color carbon fiber cloth with different colors such as blue, green, orange and purple red is obtained. The columnar structure of the carbon fiber material and the property of directional deposition of sputtering on the curved surface of the carbon fiber generate periodic gradient of a photonic structure,so that gradient-changing structural color is provided. The carbon fiber material has good electrical conductivity and thermal conductivity, so that the carbon fiber material has the characteristic of low-voltage driving electric heating, the temperature of a heater can reach about 52 DEG C at a low voltage of 2.5 V, and the carbon fiber material has good cycling thermal stability. Therefore, thedevice can be greatly applied to the field of color flexible fabric thermal management.

Description

technical field [0001] The invention belongs to the field of color heat management devices, and relates to a color carbon fiber heat management device with a structural color gradient and a preparation method, in particular to a color carbon fiber material with a structural color gradient, a heat management device based on a color carbon fiber, and a preparation method. Background technique [0002] In recent years, flexible electrically driven thermal managers have attracted extensive attention due to their great application potential in the field of wearable heating devices. Compared with chemical energy thermal managers, electrically driven thermal managers have advantages such as long-term Joule heating stability and recyclability. Therefore, many different conductive materials have been widely used in flexible wearable thermal management devices, including metal nanowires and their hybrid nanocomposites, graphite films, etc. Flexible thermal managers made of these mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14C23C14/02C23C14/08C23C14/10C23C14/35
CPCH05B3/14C23C14/352C23C14/02C23C14/08C23C14/10C23C14/081C23C14/083
Inventor 牛文斌程洁张淑芬
Owner DALIAN UNIV OF TECH
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