Method for surface modification of carbon nanotube and its dispersion method in epoxy resin

A technology of epoxy resin and carbon nanotubes, which is applied in the field of surface modification and dispersion of nanotubes, can solve problems such as inability to exert superior performance, and achieve excellent oil resistance, strong adhesion, and high hardness.

Inactive Publication Date: 2005-09-14
DAQING PETROLEUM ADMINISTRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing carbon nanotubes are very easy to aggregate, easily aggregate into useless agglomerates, and cannot exert their superior performance, the present invention provides a carbon nanotube surface modification and its dispersion in epoxy resin Method, this method is to use ultrasonic waves and high-speed stirring disperser to disperse, pulverize, activate, etc., to destroy the aggregation and winding of carbon nanotubes; to use organic functional groups of surfactants to chemically adsorb or chemically react with the surface of carbon nanotubes, Cover the surface of carbon nanotubes with surfactant, so as to realize the surface modification of carbon nanotubes and its dispersion in epoxy resin, so that carbon nanotubes will not aggregate into agglomerates and give full play to their superior performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix 0.4 grams of purified carbon nanotubes with an average diameter of 0.5-500nm and a length of 200nm-40μm, 0.4 grams of silane coupling agent TM-10, and 3 grams of xylene and n-butanol mixed solvent under stirring React for 20 minutes, add 0.4 grams of dispersant EKFA4010, 0.4 grams of dispersant DP9100 and 12 grams of xylene, n-butanol mixed solvent, stir well, use ultrasonic treatment for 30 minutes, add 0.2 grams of EFKA4009, 0.2 grams of EFKA2022, 23 grams of ring Oxygen resin E-20 was stirred at high speed for 20 minutes, and mixed evenly. According to the carbon nanotube / epoxy resin hybrid system formed by the above technology, the carbon nanotubes are easily dispersed, the dispersion is particularly uniform, and the system is stable.

Embodiment 2

[0021] Mix 0.2 grams of purified carbon nanotubes with an average diameter of 0.5-500 nm and a length of 200 nm-40 μm, 0.2 grams of silane coupling agent TM-10, and 3 grams of xylene and n-butanol mixed solvent under stirring React for 20 minutes, add 0.2 grams of dispersant EKFA4010, 0.2 grams of dispersant DP9100 and 12 grams of xylene, n-butanol mixed solvent, stir well, use ultrasonic treatment for 20 minutes, add 0.1 grams of EFKA4009, 0.1 grams of EFKA2022, 24 grams of ring Oxygen resin E-20 was stirred at high speed for 20 minutes, and mixed evenly. According to the carbon nanotube / epoxy resin hybrid system formed by the above technology, the carbon nanotubes are easily dispersed, the dispersion is particularly uniform, and the system is stable.

Embodiment 3

[0023] Mix 0.4 grams of purified carbon nanotubes with an average diameter of 0.5-500nm and a length of 200nm-40μm, 0.4 grams of silane coupling agent TM-10, and 3 grams of xylene and n-butanol mixed solvent under stirring React for 20 minutes, add 0.4 grams of dispersant EKFA4010, 0.4 grams of dispersant DP9100 and 12 grams of xylene, n-butanol mixed solvent, stir well, use ultrasonic treatment for 20 minutes, add 0.2 grams of EFKA4009, 0.2 grams of EFKA2022, 23 grams of ring Oxygen resin E-20 was stirred at high speed for 20 minutes, and mixed evenly. According to the carbon nanotube / epoxy resin hybrid system formed by the above technology, the carbon nanotubes are easily dispersed, the dispersion is particularly uniform, and the system is stable.

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Abstract

This invention relates to a carbon nanometer pipe surface modification and its disperse method in epoxy resin. The method includes (a) carbon nanometer pipe that is passivated to 0.5~500nm pipe diameter, 200nm~40ª–m and coupling agent is agitated with organic solvent to react for 10~20 minutes. (b) Certain dispersant and organic solvent are added into the uniform compound, then it is proposed for 20~40 minutes. (c) the solution said above is mixed with certain epoxy resin for 10~20 minutes. The carbon nanometer in this system is easy to disperse, and the system is stable.

Description

Technical field: [0001] The invention relates to a nanotube surface modification and dispersion technology, which belongs to a carbon nanotube surface modification and its dispersion method in epoxy resin. Background technique: [0002] Since carbon nanotubes were discovered in 1991, due to their unique structure and peculiar physical and chemical properties, such as unique metal or semiconductor conductivity, extremely high mechanical strength, hydrogen storage capacity, adsorption capacity and strong microwave Absorption capacity, etc., and potential application prospects have attracted increasing attention, aroused great interest of scientists from all over the world, and has become one of the international research hotspots in the fields of physics, chemistry, and materials science. Applied research shows that carbon nanotubes can be used in a variety of high-tech fields. If it is used as a reinforcing agent and a conductive agent, it can be used to manufacture automobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/20C08K3/04C08L63/00
Inventor 赵福君姜琳琳冯辉昌李宏亮张富叶华
Owner DAQING PETROLEUM ADMINISTRATION
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