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A kind of polyionic liquid modified carbon nanotube hybrid material and preparation method thereof

A technology of polyionic liquid and carbon nanotubes, which is applied in the field of hybrid materials, can solve the problems of poor toughness and high curing temperature, and achieve the effects of outstanding heat resistance, good distribution and stable combination

Active Publication Date: 2018-06-29
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of high curing temperature and poor toughness of CE resin in the prior art, the invention provides a modified carbon nanotube with both toughening and catalytic functions and a preparation method thereof

Method used

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  • A kind of polyionic liquid modified carbon nanotube hybrid material and preparation method thereof
  • A kind of polyionic liquid modified carbon nanotube hybrid material and preparation method thereof
  • A kind of polyionic liquid modified carbon nanotube hybrid material and preparation method thereof

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Embodiment 1

[0037] This embodiment provides a method for preparing a polyionic liquid-modified carbon nanotube hybrid material, and the specific steps are as follows:

[0038] (1) Preparation of 1-vinyl N-heterocyclic-3-chloroethylamine ionic liquid containing amino-terminated

[0039] In nitrogen (N 2 ) protection, 9.4 g of N-vinylimidazole was added dropwise to 11.3 g of 2-chloroethylamine hydrochloride, and the reaction was refluxed at a temperature of 70 ° C for 24 h. After the reaction, it was repeatedly washed with ethanol three times, and dried in vacuum at 25° C. for 4 hours to obtain 1-vinylimidazole-3-chloroethylamine ionic liquid hydrochloride A containing terminal amino groups.

[0040] Add 10.5 g of amino-terminated 1-vinylimidazole-3-chloroethylamine ionic liquid hydrochloride A into 21 mL of water and dissolve to obtain amino-terminated 1-vinylimidazole-3-chloroethylamine ionic liquid hydrochloride Aqueous solution of A; 2.1g of NaOH powder was slowly added to the aqueous...

Embodiment 2

[0065] Add 5 g of the amino-terminated and transition metal-containing ionic liquid prepared in step (2) of Example 1 into 100 mL of deionized water, and fully dissolve to obtain a clear and transparent solution. Add 2g of single-walled carbon nanotubes to the transparent solution, and ultrasonically disperse for 30min to obtain uniformly dispersed single-walled carbon nanotubes C; then add 10mL of azobisisobutyronitrile methanol solution (15mg / mL), reflux at 60°C for 24h. After the reaction, it was suction filtered, washed with deionized water, and freeze-dried for 48 hours to obtain a polyionic liquid-modified carbon nanotube hybrid material.

Embodiment 3

[0067] Add 2 g of the amino-terminated and transition metal-containing ionic liquid prepared in step (2) of Example 1 into 100 mL of deionized water and fully dissolve to obtain a clear and transparent solution. Add 1g of multi-walled carbon nanotubes and 1g of single-walled carbon nanotubes to the transparent solution, and ultrasonically disperse for 30min to obtain a uniformly dispersed carbon nanotube dispersion C; then add 4mL of azobis The methanol solution of isobutyronitrile (15mg / mL) was refluxed at 70°C for 24h. After the reaction, it was suction filtered, washed with deionized water, and freeze-dried for 48 hours to obtain a polyionic liquid-modified carbon nanotube hybrid material.

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Abstract

The invention discloses a polyionic liquid modified carbon nanotube hybrid material and a preparation method thereof. Under the protection of nitrogen, the vinyl N heterocycle and 2-chloroethylamine hydrochloride are blended and heated, and the ionic liquid hydrochloride is obtained through the Menshutkin reaction, and the ionic liquid monomer is obtained after neutralization; a certain proportion of monomer and metal The salt reacts under heating conditions to obtain an ionic liquid containing terminal amino groups and transition metals; after dissolving the obtained ionic liquid in water, add quantitative carbon nanotubes, ultrasonically disperse, and then add an initiator to initiate polymerization on the surface. After filtering and drying, a polyionic liquid modified carbon nanotube hybrid material is obtained. In the invention, the hybrid material is prepared by coating the carbon nanotube with the polyionic liquid, which has both toughening and catalytic functions; the preparation method has the characteristics of simple process and easy control.

Description

technical field [0001] The invention relates to a carbon nanotube hybrid material and a preparation method thereof, in particular to a polyionic liquid modified carbon nanotube hybrid material and a preparation method thereof, belonging to the technical field of hybrid materials. Background technique [0002] Cyanate ester (CE) resin is an important variety of heat-resistant thermosetting resins today, it has outstanding temperature resistance, and has a very low dielectric constant and loss in a wide frequency and temperature range, so it is used in electronic information, Fields such as aerospace and electrical insulation show great potential. However, like other heat-resistant thermosetting resins, CE resins need to be cured and post-treated at high temperatures, which makes the cured products prone to large residual stress, resulting in reduced service reliability of the material. In addition, compared with thermoplastic resins, the high brittleness is the lack of commo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/04C08K9/10C08K7/24
CPCC08K7/24C08K9/10C08K2201/011C08L2201/08C08L79/04
Inventor 梁国正吕文锦顾嫒娟袁莉
Owner SUZHOU UNIV
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