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Preparing method of polyhedral oligomeric silsesquioxane modified carbon nano tubes and application

A technology of silsesquioxane and nanotubes, which is applied in the field of carbon nanotube modification, can solve problems that affect researchers' research enthusiasm, achieve improved dispersion and interface bonding performance, improve dispersion and interface bonding, and improve mechanical properties. Effects of performance and heat resistance

Active Publication Date: 2016-08-24
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the polymerization mechanism of dopamine is not yet clear, it does not affect researchers' enthusiasm for research.

Method used

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  • Preparing method of polyhedral oligomeric silsesquioxane modified carbon nano tubes and application
  • Preparing method of polyhedral oligomeric silsesquioxane modified carbon nano tubes and application
  • Preparing method of polyhedral oligomeric silsesquioxane modified carbon nano tubes and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] In this example, the carboxylated carbon nanotubes used were purchased from the Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, and the aminated cage silsesquioxane used was purchased from Hybrid Plastics in the United States;

[0036] Step Ⅰ: put the purchased carboxylated carbon nanotubes into a sieving machine to obtain carboxylated carbon nanotubes with a uniform particle size of 100 mesh, use an ethanol water bath to sonicate for 1 to 2 hours, and dry to obtain uniform particle size and fluffy state Carbon nanotubes, named: fluffy carboxylated carbon nanotubes;

[0037] Step Ⅱ: Add Tris buffer solution with a pH of 8.5 to the fluffy carboxylated carbon nanotubes to prepare a mixed solution Ⅰ with a carboxylated carbon nanotube content of 0.5g / 100ml, and ultrasonically treat it under the condition of 60W-120W for 5 minutes;

[0038] Step III: Add dopamine hydrochloride into mixed solution I, use mixed solution I to prepare mixed solution II with...

Embodiment 2

[0053] In this example, the carboxylated carbon nanotubes used were purchased from the Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, and the aminated cage silsesquioxane used was purchased from Hybrid Plastics in the United States;

[0054] Step Ⅰ: put the purchased carboxylated carbon nanotubes into a sieving machine to obtain carboxylated carbon nanotubes with a uniform particle size of 200 meshes, and use an ethanol water bath to ultrasonicate for 1.5 hours and dry to obtain carbon with uniform particle size and fluffy state Nanotubes, named: fluffy carboxylated carbon nanotubes;

[0055] Step Ⅱ: add Tris buffer solution with a pH of 8.5 to the fluffy carboxylated carbon nanotubes to prepare a mixed solution Ⅰ with a carboxylated carbon nanotube content of 1.0 g / 100ml, and ultrasonically treat it under the condition of 60W-120W for 5 minutes;

[0056] Step III: Add dopamine hydrochloride into mixed solution I, use mixed solution I to prepare mixed sol...

Embodiment 3

[0063] In this example, the carboxylated carbon nanotubes used were purchased from the Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, and the aminated cage silsesquioxane used was purchased from Hybrid Plastics in the United States;

[0064] Step Ⅰ: Put the purchased carboxylated carbon nanotubes into a sieving machine to obtain carboxylated carbon nanotubes with a uniform particle size of 300 meshes, and use an ethanol water bath to ultrasonicate for 2 hours and dry to obtain carbon with uniform particle size and fluffy state. Nanotubes, named: fluffy carboxylated carbon nanotubes;

[0065] Step Ⅱ: add Tris buffer solution with a pH of 8.6 to the fluffy carboxylated carbon nanotubes to prepare a mixed solution Ⅰ with a carboxylated carbon nanotube content of 0.1 g / 100ml, and ultrasonically treat it at 120W for 5 minutes;

[0066] Step III: Add dopamine hydrochloride into mixed solution I, use mixed solution I to prepare mixed solution II with a final con...

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Abstract

The invention relates to the technical field of carbon nano tube modification, and provides a preparing method of polyhedral oligomeric silsesquioxane modified carbon nano tubes and application thereof to epoxy resin. The preparing method includes the following steps that carboxylic carbon nano tubes are preprocessed, a mixed solution of dopamine hydrochloride and the carboxylic carbon nano tubes is prepared, stirred in an ice-water bath away from light, mechanically stirred, centrifuged and purified to obtain polydopamine modified carbon nano tubes; finally the polydopamine modified carbon nano tubes and aminated polyhedral oligomeric silsesquioxane are added into organic solvent, the pH value is adjusted after mixing, after reaction is carried out at the temperature of 90-110 DEG C, the product is filtered, washed and dried to obtain the polyhedral oligomeric silsesquioxane modified carbon nano tubes. The operation method is simple and easy to implement, dispersity of the carbon nano tubes in epoxy resin and interference bonding performance can be improved, and mechanical properties and heat resistance of epoxy resin are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of carbon nanotube modification, and in particular relates to a preparation method of a novel cage-type silsesquioxane modified carbon nanotube and its application in epoxy resin. Background technique [0002] Nanocomposites have been widely used in aerospace, energy transportation, electronic appliances and other fields because of their excellent comprehensive properties, especially their structural designability; among them, epoxy resin-based nanocomposites are very attractive and One of the material systems with application prospects. [0003] Carbon nanotubes, or CNTs for short, have been a research hotspot in the field of materials science in recent years because of their perfect structure and wide range of potential applications. CNTs have excellent mechanical properties, and have excellent electrical and thermal properties, making them have great application prospects in the field of composite materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/06C08K9/08C08K7/24
CPCC08K7/24C08K9/06C08K9/08C08K2201/011C08L2201/08C08L63/00
Inventor 隋刚高亮张清杰詹文炜杨小平
Owner BEIJING UNIV OF CHEM TECH
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