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Carbon nanotube fiber hybrid fabric and its preparation method and reinforced composite material

A carbon nanotube fiber, reinforced composite material technology, applied in the field of fiber materials, can solve the problems affecting the use of bulletproof products, irreversible deformation, high temperature resistance, etc.

Active Publication Date: 2022-05-17
SHENZHEN XIWAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, UHMWPE fibers have poor creep resistance, are prone to irreversible deformation under long-term stress, and are not resistant to high temperatures, which will also affect the use of bulletproof products to a certain extent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Carbon nanotube fiber hybrid fabric and its preparation method and reinforced composite material
  • Carbon nanotube fiber hybrid fabric and its preparation method and reinforced composite material
  • Carbon nanotube fiber hybrid fabric and its preparation method and reinforced composite material

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preparation example Construction

[0034] see figure 1 , the preparation method of the carbon nanotube fiber hybrid fabric of one embodiment, comprises the following steps:

[0035] Step S110 : spinning the carbon nanotube array to prepare carbon nanotube fiber filaments.

[0036] Wherein, in the carbon nanotube array, the carbon nanotubes have a length of 100 μm to 1000 μm and a diameter of 6 nm to 15 nm. Further, the length of the carbon nanotubes is 300 μm˜600 μm. The length and diameter of the carbon nanotubes in the above-mentioned carbon nanotube array are suitable, so that the prepared carbon nanotube fibers have high strength.

[0037] Specifically, step S110 includes: pulling out a film with a width of 0.1 cm to 20 cm from the carbon nanotube array, twisting and spinning it into filaments, and preparing carbon nanotube fiber filaments. Further, the width of the drawn film is 0.1 cm to 5 cm. In one embodiment, in the process of twisting and spinning into silk, the twist is 100 tpm to 15000 tpm. Fur...

Embodiment 1-1

[0068] The preparation process of the carbon nanotube fiber hybrid fabric of the present embodiment is as follows:

[0069] (1) A film with a width of 10 cm is drawn from a carbon nanotube array with a length of 500 μm and a diameter of 10 nm, and then twisted and spun with a twist of 2000 tpm to obtain carbon nanotube fiber filaments.

[0070] (2) soaking the carbon nanotube fibers obtained in step (1) in a nitric acid solution with a mass concentration of 20% for 30 minutes, and drawing the carbon nanotube fibers with a drafting ratio of 1.06.

[0071] (3) Combine the 50 carbon nanotube fiber filaments treated in step (2) into a bundle of carbon nanotube fiber bundles.

[0072] (4) mixing the carbon nanotube fiber bundles and aramid fibers treated in step (3) by a core wrapping method, the outer wrapping fibers are carbon nanotube fiber bundles, and the inner core yarns are aramid fibers, and The volume ratio of carbon nanotube fiber bundles and aramid fibers is 1:5, and th...

Embodiment 1-2

[0074] The preparation process of the carbon nanotube fiber hybrid fabric of the present embodiment is as follows:

[0075] (1) A film with a width of 10 cm was drawn from a carbon nanotube array with a length of 500 μm and a diameter of 10 nm, and was twisted and spun with a twist of 2000 tpm to obtain carbon nanotube fiber filaments.

[0076] (2) soaking the carbon nanotube fibers obtained in step (1) in a nitric acid solution with a mass concentration of 20% for 30 minutes, and drawing the carbon nanotube fibers with a drafting ratio of 1.06.

[0077] (3) Combine the 50 carbon nanotube fiber filaments treated in step (2) into a bundle of carbon nanotube fiber bundles.

[0078] (4) the carbon nanotube fiber bundles treated in step (3) and the ultra-high molecular weight polyethylene fibers are mixed by the core wrapping method, the outer layer wrapping fibers are carbon nanotube fibers, and the inner layer core yarn is ultra-high molecular weight Polyethylene fibers, and th...

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Abstract

The invention relates to a carbon nanotube fiber hybrid fabric, a preparation method thereof and a reinforced composite material. The preparation method of the carbon nanotube fiber hybrid fabric includes the following steps: spinning the carbon nanotube array to prepare carbon nanotube fiber filaments; using an acid solution to treat the carbon nanotube fiber filaments, and pulling the carbon nanotube fiber filaments Stretching; combining carbon nanotube fiber filaments to prepare carbon nanotube fiber bundles; mixing carbon nanotube fiber bundles with high-performance fibers to prepare mixed fiber bundles; then combining carbon nanotube fiber bundles, high-performance fibers and mixed fiber bundles At least two kinds are weaved, or mixed fiber bundles are weaved to prepare a carbon nanotube fiber hybrid fabric. The method for preparing the carbon nanotube fiber hybrid fabric can prepare the carbon nanotube fiber hybrid fabric with high strength, good impact resistance, good creep resistance and good damp heat aging resistance.

Description

technical field [0001] The invention relates to the field of fiber materials, in particular to a carbon nanotube fiber hybrid fabric, a preparation method thereof, and a reinforced composite material. Background technique [0002] The fibers used in traditional bulletproof materials are aramid fibers, carbon fibers and ultra-high molecular weight polyethylene fibers. Aramid fiber has high modulus, high elongation and good impact resistance, but aramid fiber has poor dimensional stability and resistance to ultraviolet radiation, high water absorption, and poor heat and humidity aging resistance, resulting in Affect the service life of the product. Although carbon fiber has high strength, its biggest disadvantage is brittleness, that is, its impact resistance is not strong, which limits its application in bulletproof materials. UHMWPE fiber has a low density and has excellent properties such as high strength, high modulus, impact resistance, and cutting resistance. The body ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D15/47D03D15/283D03D15/275D03D15/50D03D15/513D04B1/14D04B21/00D03D13/00D01F9/12D01F11/12
CPCD03D15/00D04B1/14D04B21/00D03D13/008D01F9/12D01F11/121D01F11/128D10B2101/12D10B2331/021D10B2321/0211D10B2401/063
Inventor 邓飞辛培培刘畅
Owner SHENZHEN XIWAN TECH CO LTD
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