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Carbon nanotube fiber hybrid fabric, preparation method thereof and reinforced composite material

A carbon nanotube fiber and 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: 2020-09-25
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

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  • Carbon nanotube fiber hybrid fabric, preparation method thereof and reinforced composite material
  • Carbon nanotube fiber hybrid fabric, preparation method thereof and reinforced composite material
  • Carbon nanotube fiber hybrid fabric, preparation method thereof 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 an embodiment, comprises the steps:

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

[0036] Wherein, in the carbon nanotube array, the length of the carbon nanotubes is 100 μm˜1000 μm, and the diameter is 6 nm˜15 nm. Further, the length of the carbon nanotubes is 300 μm˜600 μm. The length and diameter of the carbon nanotubes in the carbon nanotube array are appropriate, so that the strength of the prepared carbon nanotube fibers is relatively high.

[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 of the embodiments, the twist is 100tpm-15000tpm in the process of twisting and spinning into filaments. Further, the t...

Embodiment 1-1

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

[0069] (1) Pull out a film with a width of 10 cm from a carbon nanotube array with a length of 500 μm and a diameter of 10 nm, and then twist and spin it with a twist of 2000 tpm to obtain carbon nanotube fiber filaments.

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

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

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

Embodiment 1-2

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

[0075] (1) Pull out a film with a width of 10 cm from a carbon nanotube array with a length of 500 μm and a diameter of 10 nm, twist and spin it with a twist of 2000 tpm to obtain carbon nanotube fiber filaments.

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

[0077] (3) Merge 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) are mixed with ultra-high molecular weight polyethylene fibers by a core-wrapping method, the outer wrapping fibers are carbon nanotube fibers, and the inner core yarn is ultra-high molecular weight Polyethylene fibers, and the volume ratio of carbon nanotube...

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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 comprises the following steps of: spinning a carbon nanotube array to prepare carbon nanotube fiber yarns; treating the carbon nanotube fiber yarns by adopting an acid solution, and drafting the carbon nanotube fiber yarns; combining the carbon nanotube fiber yarns to prepare a carbon nanotube fiber bundle; mixing the carbon nanotube fiber bundle with high-performance fibers to prepare a mixed fiber bundle; and then weaving at least two of the carbon nanotube fiber bundle, the high-performance fibers and the mixed fiber bundle, or weaving the mixed fiber bundle to prepare the carbon nanotube fiberhybrid fabric. The preparation method of the carbon nanotube fiber hybrid fabric can be used for preparing 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 fiber, carbon fiber and ultra-high molecular weight polyethylene fiber. Aramid fibers have high modulus, high elongation, and good impact resistance, but aramid fibers have poor dimensional stability and UV radiation resistance, high water absorption, and poor moisture and heat 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 poor impact resistance, which limits its application in bulletproof materials. Ultra-high molecular weight polyethylene fiber has low density and has excellent properties such as high strength, high modulus, impact resistance, and cutting resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D15/00D04B1/14D04B21/00D03D13/00D01F9/12D01F11/12
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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