Fiber hybridized particle and polymer matrix composite material

A technology of hybrid particles and composite materials, which is applied in the fields of magnetic materials, fiber processing, nanotechnology for materials and surface science, etc. The effect of convenient and effective performance

Active Publication Date: 2017-06-23
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is precisely because nanofibrous materials have a large aspect ratio and specific surface area that they are easily entangled when they are prepared into composite materials

Method used

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  • Fiber hybridized particle and polymer matrix composite material
  • Fiber hybridized particle and polymer matrix composite material
  • Fiber hybridized particle and polymer matrix composite material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0047] Example 1

[0048] This embodiment provides a fiber hybrid particle with nano-zinc oxide loaded on the surface of CNT, which is prepared by the following steps:

[0049] Take 1g of carbon nanotubes (CNT) into 200mL of concentrated nitric acid and concentrated sulfuric acid (3:1 volume ratio) mixed solution, and stir at 65°C for 4 hours;

[0050] After the mixed solution is cooled, it is diluted with deionized water, and the supernatant is discarded after the carbon nanotubes sink, and then it is diluted to neutrality several times and then dried to obtain acidified CNT;

[0051] Disperse the acidified CNT into 300 mL of ZnO sol, treat it with a ball milling method for 12 hours, then put the solution into a three-necked flask and slowly heat it to a constant temperature of 180°C for 24 hours;

[0052] After cooling to room temperature, washing with absolute ethanol and deionized water for multiple times, and drying at 100°C for at least 12 hours, CNT-ZnO fiber hybrid particles can...

Example Embodiment

[0055] Example 2

[0056] This embodiment provides a CNT surface loaded with BaTiO 3 The fiber hybrid particles of, which are prepared by the following steps:

[0057] Disperse 0.25g of CNTs in 100mL of absolute ethanol, mix with 0.3mL of 28wt% concentrated ammonia, and ultrasonically disperse for 15min;

[0058] Add 0.75mL of tetrabutyl titanate slowly, about 5min, stirring at 45℃ for 24h;

[0059] Wash with deionized water and absolute ethanol 3 times, and dry at 100°C for 12 hours;

[0060] Sintered to CNT-TiO at 500℃ for 2h in air atmosphere 2 Hybrid particles

[0061] Add CNT-TiO sintered at 500℃ for 2 hours in the aqueous solution of barium source 2 CNT-BaTiO can be obtained by heating in the reactor at 200℃ for 12 hours 3 Fiber hybrid particles.

[0062] CNT-BaTiO of this embodiment 3 Fiber hybrid particles, CNT is untreated, and there is no chemical bond between titanium dioxide / barium titanate, and electrostatic adsorption depends on the electronegativity difference of each posit...

Example Embodiment

[0065] Example 3

[0066] This embodiment provides a copper nanowire surface loaded with TiO 2 Fiber hybrid particles, which are prepared by the following steps:

[0067] Take 0.1M Cu(NO 3 ) 2 Put 10ml, 15M NaOH 200ml, 1.5ml ethylenediamine into a 500ml round bottom flask, raise the temperature to 50℃, stir at 700rpm;

[0068] Take 0.25mL of 35wt% N after 5min 2 H 4 Quickly add to the above solution;

[0069] After 2 minutes, add 150 mL of an aqueous solution containing 3wt% polyvinylpyrrolidone (MW=10000) and 1wt% diethylhydroxylamine, and react for 1 hour;

[0070] After centrifugal separation, copper nanowires (CuNW) can be obtained. Finally, the CuNW is dispersed in the ethanol solution, and 0.5 mL of tetrabutyl titanate is slowly dripped, and stirred at 45°C for about 5 minutes for 24 hours;

[0071] Wash with deionized water and absolute ethanol 3 times, dry at 100℃ for 12h, then sinter at 500℃ for 2h in air to CuNW-TiO 2 Fiber hybrid particles.

[0072] CuNW-TiO obtained in this ex...

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Abstract

The invention provides a fiber hybridized particle and a polymer matrix composite material. The fiber hybridized particle comprises nanofiber and nanoparticles which are loaded on the surface of the nanofiber; surface coverage rate of the nanoparticles on the nanofiber is 5-100%; the diameter of the nanofiber is 50-300nm, and the length is 1-100[mu]m; the particle size of the nanoparticles is equal to or less than the diameter of the nanofiber; interface connection effects of the nanofiber and the nanoparticles are physical absorption and/or chemical bond combination. The polymer matrix composite materials comprises polymer and the fiber hybridized particles which are filled in the polymer. The fiber hybridized particles solve the problems of agglomeration and winding of granular and fibrous nano-materials, and endow multiple functions of the fibrous hybrid nano-material multiple functions, so that the polymer matrix composite material with controllable performance and multiple functions is obtained in a convenient and effective mode.

Description

technical field [0001] The invention relates to a fiber hybrid particle and a polymer-based composite material composed of the fiber hybrid particle, belonging to the field of nanofiber materials. Background technique [0002] Nanomaterials are broadly defined as materials with at least one dimension in the nanoscale range (0.1nm-100nm) in three-dimensional space or composed of them as basic units. The particles of nanomaterials are extremely fine and the surface is extremely large. The percentage of atoms arranged in disorder on the particle surface is much larger than the percentage of atoms on the surface of large-scale materials, resulting in nanomaterials having characteristics that traditional solid materials do not have, such as volume effect and surface effect. , quantum size effect, macroscopic quantum tunneling effect and dielectric confinement effect, etc., so that nanomaterials have microwave absorption properties, high surface activity, strong oxidation, superpa...

Claims

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Application Information

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IPC IPC(8): D06M11/36B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00D06M11/36H01F1/117H01M4/90Y02E60/50
Inventor 于淑会罗遂斌孙蓉王健
Owner SHENZHEN INST OF ADVANCED TECH
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