Preparation method for flexible and highly-conductive composite carbon fiber cloth

A composite carbon fiber, high conductivity technology, applied in fiber processing, plant fibers, circuits, etc., can solve the problems of unfavorable large-scale production and application, limit the application of carbonized cotton cloth, and small effective interface, and achieve good interface bonding force and good flexibility , the effect of easy operation

Active Publication Date: 2015-09-02
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] So far, reports on flexible carbon fiber composite structures at home and abroad mainly focus on the following aspects: [Document 1, Wang HQ, Chen ZX, Liu HK, Guo, ZP. Rsc Advances 4, 110, 65074-65080 (2014)] Some researchers Cotton cloth is carbonized for lithium-sulfur batteries, but because cotton cloth is woven from strands, the carbon fibers are very dense, resulting in a small effective interface of the material, which limits the application of carbonized cotton cloth materials in composite materials
In terms of carbon fiber cloth composite structure, the current research mainly includes the following as...

Method used

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  • Preparation method for flexible and highly-conductive composite carbon fiber cloth
  • Preparation method for flexible and highly-conductive composite carbon fiber cloth
  • Preparation method for flexible and highly-conductive composite carbon fiber cloth

Examples

Experimental program
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Effect test

Embodiment 1

[0053] Take the above seven pieces of cotton cloth, impregnate and compound carbon nanotubes of different qualities, respectively (a) 0mg, (b) 3.3mg, (c) 6.1mg, (d) 15.8mg, (e) 33.3mg, (f) 75mg, and then the composite cotton precursor was dried in an oven at 70°C for 12h, corresponding to figure 1 (a), (b), (c), (d), (e) and (f), take it out and put it in a tube furnace, vacuumize, use argon as protective gas (flow rate is 1000sccm), and heat at 10°C The temperature was raised to 1000°C at a rate of 1 / min, heat-treated under argon for 2 hours, and then lowered to room temperature under the protection of argon. The obtained samples were as follows: Figure 4 shown. The contents of carbon nanotubes in the six samples are: 0, 1wt%, 2wt%, 5wt%, 10wt%, and 20wt%; Figure 7 shows that pure carbon fiber cloth, Figure 8 Scanning electron micrographs in , show that the cotton cloth is woven from regular cotton threads, and the surface of the carbon fibers is uniformly coated with c...

Embodiment 2

[0055] Take the above seven pieces of cotton cloth, impregnate and compound graphene of different quality, respectively (a) 0mg, (b) 3.3mg, (c) 6.1mg, (d) 15.8mg, (e) 33.3mg, (f) 75mg , and then put the composite cotton precursor in an oven at 70°C for 12 hours, corresponding to figure 2 (a), (b), (c), (d), (e) and (f), take it out and put it in a tube furnace, vacuumize, use argon as protective gas (flow rate is 1000sccm), and heat at 10°C The temperature is raised to 1000°C at a rate of 1 / min, the heat treatment time is 2h under argon, and the temperature is lowered to room temperature under the protection of argon. (Such as Figure 5 Shown) the graphene contents in the six samples are respectively: 0, 1wt%, 2wt%, 5wt%, 10wt%, and 20wt%. Figure 8 The scanning electron micrographs in the paper show that the cotton cloth is woven from regular cotton threads, and the carbon fiber surface is uniformly coated with graphene.

Embodiment 3

[0057] Take seven pieces of the above-mentioned cotton cloth, respectively impregnate the composite amount of carbon nanotubes and graphene mixed solution (mass ratio 1:1), followed by (a) 0mg, (b) 3.3mg, (c) 6.1mg, (d) 15.8mg, (e) 33.3mg, (f) 75mg, and then the composite cotton precursor was dried in an oven at 70°C for 12h, corresponding to image 3 (a), (b), (c), (d), (e) (f), take it out and put it in a tube furnace, vacuumize it, use argon as a protective gas (flow rate is 1000sccm), and heat at 10°C / The temperature was raised to 1000°C at a rate of 1 min, the heat treatment time was 2 h under argon, and the temperature was lowered to room temperature under the protection of argon. (Such as Figure 6 Shown) The total mass percentages of carbon nanotubes and graphene in the six samples are: 0, 1wt%, 2wt%, 5wt%, 10wt%, and 20wt%. Figure 9 The scanning electron microscope photos in the paper show that the cotton cloth is woven from regular cotton threads, and the carbon ...

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Abstract

The present invention relates to the field of carbon composite materials, more particularly to a preparation method for the flexible and highly-conductive composite carbon fiber cloth, wherein the pure natural cellulose cloth is adopted as a precursor to be uniformly compounded with carbon nanotubes and/or graphene through the impregnation method. In the protective atmosphere, textile fibers are carbonized through the high-temperature heat treatment, and a carbon fiber interface is strongly bonded with the composite carbon nanotubes or the composite graphene. In this way, during the carbonizing process, a strong bonding action is formed between carbon fibers, carbon nanotubes and/or grapheme, so that a coaxial carbon fiber cloth composite structure is formed. According to the invention, the structure and the performance of the composite material are regulated at different treatment temperatures, different treatment times and different compound quantities of carbon nanotubes. In this way, by means of the flexible and highly-conductive composite carbon fiber cloth, the problem that conventional carbon materials do not have the advantages of flexibility, high specific surface area and high electrical conductivity at the same time can be solved.

Description

technical field [0001] The invention relates to the field of carbon composite materials, in particular to a method for preparing a flexible and highly conductive composite structure carbon fiber cloth. Background technique [0002] Carbon fiber has been favored since its inception due to its excellent mechanical properties, good chemical stability, light weight and high strength. As a composite material reinforcement, it has been widely used in the fields of automobiles, aerospace, military and national defense. The mechanical and electrical properties of carbon fibers prepared from different precursors are significantly different, and the two-dimensional conductive network woven by carbon fibers has potential applications in many fields. Carbon nanotubes and graphene are new carbon nanomaterials discovered in recent years. Because of their unique nanostructure, theoretical and experimental studies have shown that carbon nanotubes and graphene have better physical and chemic...

Claims

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Application Information

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IPC IPC(8): H01M4/66D06M11/74D06M101/06
CPCD06M11/74D06M2101/06H01M4/663H01M4/667Y02E60/10
Inventor 刘畅赵石永方若翩程敏侯鹏翔成会明
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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