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Application of carbon nanotube aggregates to preparation of bulletproof composite and preparation method of bulletproof composite

A technology of bulletproof composite materials and carbon nanotubes, which is applied in the direction of offensive equipment, protective equipment, personnel protection equipment, etc., can solve the problems of non-uniform weft cloth structure, poor heat resistance, large creep, etc., and achieve excellent protection effect, Excellent heat resistance and high impact resistance

Active Publication Date: 2017-08-08
深圳前海量子翼纳米碳科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, existing bulletproof materials also have defects. For example, UHMWPE materials have poor heat resistance (less than 120°C) and large creep, and are not suitable for use in high-temperature desert environments; Kevlar is not resistant to ultraviolet radiation and water vapor; In the process of obtaining the weft-free fabric, the uneven structure of the weft-free fabric caused by uneven yarn spreading can only reduce the bullet penetration rate by increasing the number of stacked layers
Moreover, the existing bulletproof materials are stiff and not soft, poor fit to the human body, high density, heavy weight, poor wearing comfort, and affect the flexibility of human body movement

Method used

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  • Application of carbon nanotube aggregates to preparation of bulletproof composite and preparation method of bulletproof composite
  • Application of carbon nanotube aggregates to preparation of bulletproof composite and preparation method of bulletproof composite
  • Application of carbon nanotube aggregates to preparation of bulletproof composite and preparation method of bulletproof composite

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preparation example Construction

[0081] Another aspect of the embodiments of the present invention provides a method for preparing a bulletproof composite material comprising:

[0082] A plurality of carbon nanotube continuums are continuously aggregated on a continuous surface and densified to form a plurality of oriented basic units, and the multiple basic units are densely arranged to form a carbon with a macroscopic two-dimensional planar structure. Nanotube aggregates, wherein the carbon nanotube continuum is formed by disorderly interweaving of multiple carbon nanotubes, and presents a closed, semi-closed or open two-dimensional or three-dimensional spatial structure before densification treatment;

[0083] The carbon nanotube aggregate is fixedly attached to the surface of the fabric to form the bulletproof composite material.

[0084] Preferably, referring to the foregoing, the carbon nanotube continuum is prepared by a floating catalytic cracking method.

[0085] Further, the continuous surface is a...

Embodiment 1

[0105] 1) Relying on the van der Waals force between carbon nanotubes, the tubular hollow carbon nanotube continuum grown from a high-temperature furnace (refer to "Science", 2004, 304 issue, p276), under the buoyancy of the air, It is continuously wound on a cylindrical horizontal drum. While the drum is rotating, it can reciprocate along the axial direction. The moving distance is the length of the drum. After a certain period of continuous collection, ethanol is used on the surface of the obtained continuous carbon nanotube aggregates Spray while applying pressure using cylindrical steel rollers (see figure 1 ), the pressure is about 4MPa. After the solvent evaporates at room temperature, remove it from the support round roller to form a self-supporting nano-carbon film, and then press it with a press to further increase the density of the film. The pressure used is 15 MPa, the temperature is about 90 ° C, and the time is about 2 hours. , the final obtained carbon nanotube...

Embodiment 2

[0110] 1) With reference to the carbon nanotube preparation process of Example 1, relying on the van der Waals force between the carbon nanotubes, the tubular hollow carbon nanotube continuum grown from the high-temperature furnace (referred to in the comparatively typical case mentioned above) The preparation process of the carbon nanotube continuum), under the buoyancy of the air, is continuously wound on the cylindrical horizontal drum. While the drum is rotating, it can reciprocate along the axial direction. The moving distance is the length of the drum. The cumulative After collecting continuously for a certain period of time, use a graphene alcohol solution (concentration of about 0.1wt% to 5wt%) on the surface of the obtained continuous carbon nanotube aggregate. The alcohol solvent can be propanol, ethanol, ethylene glycol, etc., or mixed solvent of alcohol and water) spraying, and at the same time, using cylindrical steel rollers for pressure (see figure 1 ), the pres...

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Abstract

The invention discloses application of carbon nanotube aggregates to preparation of a bulletproof composite. The bulletproof composite comprises at least one carbon nanotube aggregate and fabric, wherein each carbon nanotube aggregate is provided with a macroscopic two-dimensional planar structure formed by densely gathering multiple carbon nanotubes, and the surface of at least one side of the fabric is covered with at lease one carbon nanotube aggregate. Each carbon nanotube aggregate comprises multiple oriented foundation units densely distributed in a continuous plane, wherein each foundation unit is provided with a three-dimensional planar structure formed by interweaving the carbon nanotubes, and each carbon nanotube aggregate is in the macroscopic ordered and microcosmic unordered state. The invention further discloses a preparation method of the bulletproof composite. The bulletproof composite has the beneficial effects of being light, thin, good in environment weather resistance, excellent in bulletproof performance, suitable for batched preparation, good in flexibility, capable of being attached to the human body at any curved surface and the like.

Description

technical field [0001] The invention relates to a bulletproof material, in particular to a bulletproof composite material based on nanometer carbon material and a preparation method thereof. Background technique [0002] At present, the materials widely used in the bulletproof field include ultra-high molecular weight polyethylene (UHMWPE), aramid fiber and poly-p-phenylenebenzobisoxazole (PBO). In actual use, the surface of the high-performance fiber or the surface of the fabric is covered with resin, which can effectively restrain the slippage of the fiber, improve the uniformity of the material structure, and thus improve the bulletproof effect of the material. CN102058188B, by compounding nanoparticles with high-performance fiber fabric and then compounding with thermoplastic resin, the impact resistance can be increased by 20%, and the weight can be reduced by 18%, while the softness of the material itself does not change. CN100567606A dissolves carbon nanotubes in an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H1/02B32B9/00B32B9/04
CPCB32B9/007B32B9/045B32B27/32F41H1/02
Inventor 胡东梅李清文解晓波李丹金赫华张永毅
Owner 深圳前海量子翼纳米碳科技有限公司
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