Dispersion method of carbon nanometer pipe in ethoxyline resin

A technology of epoxy resin and carbon nanotubes, which is applied in the field of dispersion of carbon nanotubes in epoxy resin, can solve the problems of easy aggregation of carbon nanotubes and inability to exert superior performance, and achieve easy dispersion, excellent oil resistance, and attachment strong effect

Inactive Publication Date: 2013-12-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since carbon nanotubes are nanomaterials, they are easy to aggregate. If they are mixed with polymers like ordinary carbon fibers, carbon nanotubes are easily aggregated into useless clumps and cannot exert their superior performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The invention provides a method for dispersing carbon nanotubes in epoxy resin, the steps of which are:

[0017] Divide 301.54g of epoxy resin into two parts on average, take one part and add it to the iron bucket that comes with the polymer mechanical mixing and ball milling system, take 8g of unmodified carbon nanotubes and evenly add it to the iron bucket, and then put the other Part epoxy resin is added to the iron bucket. In the polymer mechanical mixing and ball milling system, first stir at 800rpm for 40min, then at 5500rpm for 25min to prepare glue, take out the glue and let it stand for one day. The test parameters of the three-roll mill were used to grind and submerge the mixed solution, so that the carbon nanotubes were uniformly dispersed in the epoxy resin. When grinding, set the three-roll mill to the spacing mode, wherein the spacing between the three rollers is set to 90 μm and 30 μm, 60 μm and 20 μm, 30 μm and 10 μm, 15 μm and 5 μm in sequence, and eac...

Embodiment 2

[0020] The difference between this embodiment and embodiment 1 is:

[0021] 1. Use acidified carbon nanotubes instead of unmodified carbon nanotubes;

[0022] 2. In the polymer mechanical mixing and ball milling system, firstly stir at 1200rpm for 25min, then stir at 4500rpm for 40min to prepare glue.

[0023] Other steps are identical with embodiment 1. According to the carbon nanotube / epoxy resin mixed system formed by the above method, the carbon nanotube is easily dispersed, the dispersion is particularly uniform, and the system is stable.

Embodiment 3

[0025] The difference between this embodiment and embodiment 1 is:

[0026] 1. Use ozonated carbon nanotubes instead of unmodified carbon nanotubes;

[0027] 2. In the polymer mechanical mixing and ball milling system, firstly stir at 1000rpm for 30min, then stir at 5000rpm for 30min to prepare glue.

[0028] Other steps are identical with embodiment 1. According to the carbon nanotube / epoxy resin mixed system formed by the above method, the carbon nanotube is easily dispersed, the dispersion is particularly uniform, and the system is stable.

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PUM

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Abstract

The invention provides a dispersion method of a carbon nanometer pipe in an ethoxyline resin. The dispersion method comprises the following step of: calculating according to a product to be produced to obtain the use amounts of the ethoxyline resin and the carbon nanometer pipe. The dispersion method is characterized in that the ethoxyline resin is equally divided into two parts, one part of ethoxyline resin is added into a metal drum of a polymer mechanical mixing and ball mill system, subsequently, the carbon nanometer pipe is added, and then, the other part of ethoxyline resin is added; stirring is carried out for 25-40 minutes under the rotation rate of 800-1200 rpm (revolutions per minute) firstly, subsequently stirring is carried out for 25-40 minutes under the rotation rate of 4500-5500 rpm, and the obtained glue solution is taken out and standing is carried out for at least one day; and a three-roll grinder is used to carry out grinding and submergence on the glue solution, and the carbon nanometer pipe is uniformly dispersed in the ethoxyline resin. The carbon nanometer pipe in a system formed by using the method provided by the invention has the advantages that the dispersion is easy and uniform, and the system is stable.

Description

technical field [0001] The invention relates to a method for dispersing carbon nanotubes, in particular to a method for dispersing carbon nanotubes 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 properties, 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 automobile protective parts with excellent perfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/20C08L63/00C08K7/00C08K3/04C08K9/00
Inventor 马磊李炜
Owner DONGHUA UNIV
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