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Polyion liquid-modified carbon nano-tube 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: 2016-08-10
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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  • Polyion liquid-modified carbon nano-tube hybrid material and preparation method thereof
  • Polyion liquid-modified carbon nano-tube hybrid material and preparation method thereof
  • Polyion liquid-modified carbon nano-tube 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 terminal amino groups

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

[0040] 10.5g of 1-vinylimidazole-3-chloroethylamine ionic liquid hydrochloride containing terminal amino groups was added to 21mL of water to dissolve to obtain 1-vinylimidazole-3-chloroethylamine ionic liquid hydrochloride containing terminal amino groups An aqueous solution of A; 2.1 g of...

Embodiment 2

[0065] Add 5 g of the ionic liquid containing terminal amino groups and transition metals prepared in step (2) of Example 1 into 100 mL of deionized water to fully dissolve and obtain a clear and transparent solution. Add 2 g of single-walled carbon nanotubes to the transparent solution, and ultrasonically disperse for 30 minutes to obtain uniformly dispersed single-walled carbon nanotubes C; then add 10 mL of methanol solution of azobisisobutyronitrile to the single-walled carbon nanotube dispersion C (15mg / mL), reflux reaction at 60℃ for 24h. After the reaction is completed, suction filtration, washing with deionized water, and freeze-drying for 48 hours are carried out to obtain a polyionic liquid modified carbon nanotube hybrid material.

Embodiment 3

[0067] Add 2 g of the ionic liquid containing terminal amino groups and transition metals prepared in step (2) of Example 1 into 100 mL of deionized water to fully dissolve it 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 30 minutes to obtain a uniformly dispersed carbon nanotube dispersion C; then add 4 mL of azobis to the carbon nanotube dispersion C The methanol solution of isobutyronitrile (15mg / mL) was refluxed for 24h at 70℃. After the reaction is completed, suction filtration, washing with deionized water, and freeze-drying for 48 hours are performed to obtain a polyionic liquid modified carbon nanotube hybrid material.

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Abstract

The invention discloses a polyion liquid-modified carbon nano-tube hybrid material and a preparation method thereof. The preparation method comprises the following steps: under the protection of nitrogen, mixing and heating vinyl N-heterocycle and 2-chloroethylamine hydrochloride; performing Menshutkin reaction to obtain an ionic liquid hydrochloride; neutralizing to obtain ion liquid monomers; reacting a certain ratio of monomers and a metal salt under a heating condition to obtain an ion liquid which contains an amino end group and a transition metal; dissolving obtained ion liquid in water, adding a fixed amount of carbon nano-tubes, performing ultrasonic dispersing, adding an initiator to perform surface-initiated polymerization, and filtering and drying a product to obtain the polyion liquid-modified carbon nano-tube hybrid material. According to the polyion liquid-modified carbon nano-tube hybrid material and the preparation method thereof, the hybrid material is prepared by coating the carbon nano-tubes with polyion liquid; the hybrid material has toughening and catalyzing functions; the preparation method has the characteristics of simple process and easiness in 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, and belongs 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. Therefore, it is used in electronic information, The aerospace, electrical insulation and other fields show great potential. However, like other heat-resistant thermosetting resins, CE resins need to be cured and post-processed at high temperatures, which makes the cured products prone to large residual stresses, resulting in reduced service reliability of the materials. In addition, relative to thermoplastic resins, the greater brittleness is the...

Claims

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Application Information

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Patent Type & Authority Applications(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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