Flexible composite polymer thin film containing carbon nanotubes and nano silver, and preparation method thereof

A technology of composite polymers and carbon nanotubes, which is used in equipment for manufacturing conductive/semiconducting layers, cable/conductor manufacturing, conductive materials dispersed in non-conductive inorganic materials, etc., to achieve good pull-up performance, High tensile strength, high feasibility effect

Active Publication Date: 2019-04-19
华碳研发(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, from the perspective of material performance and production cost, it is often not enough to only add carbon nanotubes to achieve high conductivity of composite films.
Although the further addition of metal nanoconductors can significantly improve the electrical properties of thin film materials, higher technical requirements are placed on the composite process and methods

Method used

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  • Flexible composite polymer thin film containing carbon nanotubes and nano silver, and preparation method thereof
  • Flexible composite polymer thin film containing carbon nanotubes and nano silver, and preparation method thereof
  • Flexible composite polymer thin film containing carbon nanotubes and nano silver, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Preparation of silver nanoparticle / carbon nanotube mixture: silver nitrate was added to the ethanol solution of benzenemethanol, and the molar ratio was: benzenemethanol:silver nitrate=1:1. After fully stirring and reacting at room temperature for 48 hours, the multi-walled carbon nanotube powder was added in a mass ratio of Ag:MWCNT=1:2. After 600W ultrasonic mixing at room temperature for 2 hours, filter with a 0.2 μm filter membrane, wash with ethanol, collect the filter cake, and dry to obtain a silver nanoparticle-modified carbon nanotube mixture (AgNP-MWCNT).

[0029] (2) Preparation of silver nanoparticles / carbon nanotubes / ionic liquid gel: in the silver nanoparticles / carbon nanotube mixture prepared in the above step (1), add imidazole ionic liquid, and the mass ratio of addition is: [AgNP- MWCNT]:ionic liquid=1:2. After thorough grinding and mixing for 1 hour at room temperature, a black liquid gel (AgNP-MWCNT / IL) was obtained.

[0030] (3) Preparation of...

Embodiment 2

[0033] (1) Preparation of silver nanoparticle / carbon nanotube mixture: silver nitrate was added to the ethanol solution of benzenemethanol, and the molar ratio was: benzenemethanol:silver nitrate=1:1. After fully stirring and reacting at room temperature for 48 hours, the multi-walled carbon nanotube powder was added at a mass ratio of Ag:MWCNT=1:3. After 600W ultrasonic mixing at room temperature for 2 hours, filter with a 0.2 μm filter membrane, wash with ethanol, collect the filter cake, and dry to obtain a silver nanoparticle-modified carbon nanotube mixture (AgNP-MWCNT).

[0034] (2) Preparation of silver nanoparticles / carbon nanotubes / ionic liquid gel: in the silver nanoparticles / carbon nanotube mixture prepared in the above step (1), add imidazole ionic liquid, and the mass ratio of addition is: [AgNP- MWCNT]:ionic liquid=1:3. After thorough grinding and mixing for 1 hour at room temperature, a black liquid gel (AgNP-MWCNT / IL) was obtained.

[0035] (3) Preparation of h...

Embodiment 3

[0038] (1) Preparation of silver nanoparticle / carbon nanotube mixture: silver nitrate was added to the ethanol solution of benzenemethanol, and the molar ratio was: benzenemethanol:silver nitrate=1:1.5. After fully stirring and reacting at room temperature for 48 hours, the multi-walled carbon nanotube powder was added in a mass ratio of Ag:MWCNT=1:2. After 600W ultrasonic mixing at room temperature for 2 hours, it was filtered with a 0.2 μm filter membrane, washed with ethanol, and the filter cake was collected and dried to obtain a silver nanoparticle-modified carbon nanotube mixture (AgNP-MWCNT).

[0039] (2) Preparation of silver nanoparticles / carbon nanotubes / ionic liquid gel: in the silver nanoparticles / carbon nanotube mixture prepared in the above step (1), add imidazole ionic liquid, and the mass ratio of addition is: [AgNP- MWCNT]:ionic liquid=1:2. After thorough grinding and mixing for 1 hour at room temperature, a black liquid gel (AgNP-MWCNT / IL) was obtained.

[...

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Abstract

The invention provides a flexible composite polymer thin film containing carbon nanotubes and nano silver. The flexible composite polymer thin film is prepared from raw materials including the carbonnanotubes, silver nanoparticles, an ionic liquid, nano silver wires and polyvinylidene fluoride, wherein the one-dimensional carbon nanotubes are effectively dispersed among the benzene-modified silver nanoparticles (AgNP), the ionic liquid (IL) and the nano silver wires (AgNF), and form a continuous three-dimensional interpenetrating conductive network; and the interpenetrating conductive networkis loaded in a polyvinylidene fluoride (PVDF) base material to form a stretchable highly-conductive flexible composite polymer thin film. The prepared flexible composite polymer thin film has a conductivity ranging from 1500 to 2000 S / cm. The invention further provides a preparation method of the flexible composite polymer thin film containing the carbon nanotubes and the nano silver.

Description

technical field [0001] The invention relates to the field of a highly conductive flexible film material, in particular to a highly conductive flexible composite polymer film containing carbon nanotubes and nano silver and a preparation method thereof. Background technique [0002] With the rapid development of the field of artificial intelligence, a new generation of electronic devices such as curved displays, wearable devices, bionic electronic skin, multifunctional sensors, and soft robots have proposed bendable, printable, stretchable and other aspects of conductive materials. performance requirements. [0003] It is against this background that the development of highly conductive, stretchable and flexible film materials has attracted extensive research and development interest. At present, the common way to prepare such materials is to mix a certain proportion of metal nanoconductors or one-dimensional carbon nanotubes in elastic polymer films, because this strategy ta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/16H01B1/24H01B1/22H01B13/00
CPCH01B1/22H01B1/24H01B5/16H01B13/00H01B13/0026
Inventor 陈振赵琦杨劲光
Owner 华碳研发(深圳)有限公司
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