Preparation method for strong-adhesion-force carbon nanotube flexible transparent conductive thin film and adhesion force detection method

A technology of transparent conductive film and carbon nanotube film, which is applied in the direction of cable/conductor manufacturing, circuit, measuring device, etc. It can solve the problem of difficult direct test of carbon nanotube adhesion, low adhesion, and uneven uniformity of inner carbon nanotubes. To achieve the effect of easy implementation, simple operation process and no pollution to the environment

Active Publication Date: 2014-09-03
碳星科技(天津)有限公司
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Problems solved by technology

[0004] However, if the carbon nanotube solution is directly sprayed onto the PET substrate, the uniformity of the carbon nanotubes in the inner layer on the PET substrate is not good, and the adhesion is also relatively low.
At the same time, due to technical limitations, the adhesion of carbon nanotubes on PET substrates is difficult to directly test

Method used

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  • Preparation method for strong-adhesion-force carbon nanotube flexible transparent conductive thin film and adhesion force detection method
  • Preparation method for strong-adhesion-force carbon nanotube flexible transparent conductive thin film and adhesion force detection method
  • Preparation method for strong-adhesion-force carbon nanotube flexible transparent conductive thin film and adhesion force detection method

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Embodiment Construction

[0036] One, such as figure 1 Shown: a kind of preparation method of the carbon nanotube flexible transparent conductive film of strong adhesion, comprises the steps:

[0037] 1. Pretreatment of ethylene terephthalate PET substrate 1:

[0038] ①Put the original PET base into ethanol, soak it ultrasonically at 30-50KHZ, 50-200W for 1-5h, then put it into 2-12M nitric acid and let it soak for 1-5h;

[0039] ② Take out the PET in ① and put it in deionized water for 1-3 hours to remove the nitric acid on the surface of the PET and make the surface of the PET undergo hydrolysis in water;

[0040] ③ Put the PET in ② in a fume hood and let it dry for 10-15 hours.

[0041] 2. Preparation of carbon nanotube solution for spraying:

[0042] ① Weigh carbon nanotube (SWCNTs) 2 powder at a mass ratio of 0.005%, weigh sodium dodecylbenzenesulfonate (SDBS) 3 at a mass ratio of 0.5%, dissolve in 100ml deionized water, and Sonicate for 1.5h at 100W power in the washer, and then 1h at 120W po...

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Abstract

A preparation method for a strong-adhesion-force carbon nanotube flexible transparent conductive thin film is characterized by carrying out pretreatment of nitric acid soaking, water washing and air drying in sequence on a polyethylene terephthalate (PET) base; and taking the PET which is subjected to the pretreatment as the base and spraying carbon nanotube solution to prepare the carbon nanotube flexible transparent conductive thin film FTCFs. The specific steps of spraying the carbon nanotube solution to prepare the carbon nanotube flexible transparent conductive thin film FTCFs are as follows: heating a heating plate placed with the PET to a pre-spraying temperature of 60-90 degrees; spraying at a low speed for 10-20 times; then, raising the temperature to 100-130 degrees; and spraying at a high speed for 30-50 times to prepare the FTCFs. With the preparation method, the adhesion force of SWCNTs on the PET can be effectively improved; an ultrasonic wave resonance method also provides an effective way for detecting the adhesion force of the FTCFs; and besides, the operation process is simple, no pollution is caused, the method is easy to realize, and the effect is obvious.

Description

technical field [0001] The invention relates to the preparation of a carbon nanotube flexible transparent conductive film with strong adhesion and its adhesion detection method, belonging to the technical fields of nanometer materials, display materials, optoelectronic devices and communications. Background technique [0002] Ethylene terephthalate (PET), as a preferred flexible substrate for carbon nanotube flexible transparent conductive film, has the advantages of high light transmittance, deformation resistance, and good flexibility, so it is widely used in electronic light-emitting devices. [0003] Carbon nanotubes have good electrical conductivity and flexibility, and the flexible transparent conductive films of carbon nanotubes prepared therefrom are widely used in fields such as electronic light-emitting devices, solar cells, and liquid crystal displays. The flexible transparent conductive film of carbon nanotubes is prepared by using PET as the substrate by sprayin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00G01N19/04
Inventor 耿宏章李虎孟岩张泽晨
Owner 碳星科技(天津)有限公司
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