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Adhesion method for improving adhesion performance of carbon nanotube dry glue

A carbon nanotube and carbon nanotube array technology, which is applied in the field of carbon nanotube dry glue material preparation, can solve the problems of limited improvement of adhesion strength, failure to achieve ultra-high adhesion strength, etc., and achieves increased adhesion strength, Excellent adhesion strength, the effect of improving adhesion strength

Active Publication Date: 2020-09-01
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the improvement of the adhesion strength of carbon nanotube dry adhesive is limited, although there are more than 100N / cm 2 High adhesion strength, but not up to 150N / cm 2 super high adhesive strength

Method used

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  • Adhesion method for improving adhesion performance of carbon nanotube dry glue
  • Adhesion method for improving adhesion performance of carbon nanotube dry glue
  • Adhesion method for improving adhesion performance of carbon nanotube dry glue

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Embodiment 1

[0047] The adhesion method for improving the adhesion performance of carbon nanotube dry adhesive provided by the embodiment 1 of the present invention mainly includes the following steps:

[0048] (1) Use magnetron sputtering (PVD) to plate an alumina buffer layer and iron catalyst on the surface of a single-sided polished silicon wafer. The alumina buffer layer is sputtered by radio frequency reactive sputtering, and high-purity argon gas 12sccm (standard ml / Minutes), high-purity oxygen 3sccm, sputtering power of 200W, reaction time of 10min; iron catalyst adopts DC sputtering, high-purity argon gas 12sccm, sputtering power of 20W, and sputtering time of 30s. The thickness of the finally prepared alumina buffer layer is 10 nm, and the thickness of the iron catalyst is 4 nm.

[0049] (2) The carbon nanotube array is prepared by the "Super growth" water assisted chemical vapor deposition method ("Super growth" water assisted CVD), wherein the tube furnace has a diameter of 1 inch,...

Embodiment 2

[0055] The adhesion method for improving the adhesion performance of carbon nanotube dry glue provided by the embodiment 2 of the present invention is basically the same as that of the embodiment 1, except that the treatment liquid environment in step (3) is changed from deionized water to ethanol solution, and ethanol treatment The adhesion strength enhancement factor of the carbon nanotube array after figure 2 Shown from figure 2 It can be seen that the enhancement factor of the carbon nanotube array after ethanol treatment is 2.6.

Embodiment 3

[0057] The adhesion method for improving the adhesion performance of the carbon nanotube dry glue provided by the embodiment 3 of the present invention is basically the same as that of the embodiment 1, except that the treatment liquid environment in step (3) is changed from deionized water to ethanol and deionized water. The resulting mixed solution (the volume ratio of ethanol to deionized water is 5:1), the adhesion strength enhancement factor of the carbon nanotube array after liquid treatment is as figure 2 Shown, since figure 2 It can be seen that the enhancement factor of the carbon nano array after liquid treatment is 2.4.

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Abstract

The invention belongs to the related technical field of preparation of carbon nanotube dry glue materials, and discloses an adhesion method for improving the adhesion performance of carbon nanotube dry glue. The method comprises the following steps: (1) placing a carbon nanotube array in a liquid with a predetermined surface tension coefficient, and transferring the carbon nanotube array to a target adhesion substrate after the carbon nanotube array is completely infiltrated in the liquid; and (2) continuously applying pressure to the carbon nanotube array until the liquid in the carbon nanotube array is completely evaporated, thereby completing the adhesion for improving the adhesion performance of the carbon nanotubes. The carbon nanotube array is subjected to liquid treatment, and the contact area of the carbon nanotubes and the target adhesion substrate is increased along with the increase of pressure after the liquid treatment, so that the Van der Waals' force is correspondingly increased, the adhesion strength is increased in the final reaction, the cost is low, and the efficiency is high.

Description

Technical field [0001] The invention belongs to the technical field related to the preparation of carbon nanotube dry glue materials, and more specifically relates to an adhesion method for improving the adhesion performance of carbon nanotube dry glue. Background technique [0002] In the field of consumer electronics, such as smart phones, tablet computers, touch displays and e-readers, in order to enhance the user's vision, the aesthetics and appearance of the device, the adhesive material for the touch sensor not only needs good adhesion performance , Additional properties such as anti-aging properties are also required. In the aerospace field, spacecraft such as space shuttles, satellites, space stations, and spacecraft have to experience complex and harsh external environments such as vacuum, high and low temperature alternation, ultraviolet radiation, and atomic oxygen when launching manned aircraft and flying on waterways. In the process of aircraft design and manufactur...

Claims

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Application Information

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IPC IPC(8): C09J5/00C09J1/00C01B32/168
CPCC09J1/00C09J5/00C01B32/168
Inventor 徐鸣周笛
Owner HUAZHONG UNIV OF SCI & TECH
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