A kind of carbon nanotube dispersion method
A carbon nanotube, dispersion technology, applied in the direction of mixing methods, chemical instruments and methods, dissolution, etc., can solve the problems of complex processing technology, damage to the integrity of carbon nanotubes in the application effect, unsuitable for large-scale production, etc., to achieve dispersion thorough effect
Active Publication Date: 2017-11-14
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology
Although this technology disperses the agglomerated carbon nanotubes, it destroys the integrity of the carbon nanotubes and has certain shortcomings in the application effect. The processing technology is also relatively complicated, and it is not suitable for large-scale production.
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[0016] The present invention will be further described below in conjunction with accompanying drawings and examples.
[0017] The invention provides a method for dispersing carbon nanotubes, the formula of which is carbon nanotubes and phase change substances. The phase change substance is butane, and small molecular hydrocarbon phase change substances can also be used. If butane is used as a phase change substance, the specific mass ratio of carbon nanotubes to butane is preferably 1:20.
[0018] Its preparation process comprises the following steps:
[0019] (1) First add carbon nanotubes into the pressure vessel and then add phase change substances and provide sufficient stirring to avoid component stratification;
[0020] (2) Open the valve at the throttling nozzle of the pressure vessel to spray the atomized mixed components to realize the phase change of the dispersant, and at the same time blow air into the container where the throttle nozzle is located to drag the ca...
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The invention discloses a method for dispersing carbon nanotubes, which belongs to the field of new materials. Its formula is carbon nanotubes and phase change substances; the process steps are: (1) first add carbon nanotubes into the pressure vessel and then add phase change substances; (2) spray out the atomized mixed components to realize the dispersant phase change, and at the same time blow airflow into the container where the throttling nozzle is located to drag the carbon nanotubes; (3) the carbon nanotubes enter the absorber under the airflow traction to achieve mixing with the purpose solvent; (4) the airflow passes through the filter, Filter out the unabsorbed carbon nanotubes, enter the phase inverter to make the phase change material return to the initial phase state and return to the pressure vessel for recycling. The invention has the beneficial effects of providing a carbon nanotube dispersion method that does not destroy the carbon nanotube structure, has a thorough dispersion effect and is suitable for mass production.
Description
technical field [0001] The invention relates to the field of new materials, in particular to a carbon nanotube dispersion method. Background technique [0002] Carbon nanotubes, which are tubular substances with a diameter of nanometers, are formed by curling graphite sheets according to a certain helix angle by using electric arc, laser and other technologies. It has a very large aspect ratio, excellent physical properties, and its tensile strength is 100 times that of steel. The heat exchange performance along the length direction is high, while the heat exchange performance in the vertical direction is relatively low. Through proper orientation, carbon nanotubes can synthesize highly anisotropic heat conduction materials. Adding a small amount is an ideal additive material to improve the physical properties of rubber, plastics and chemical industries, and has a very broad application prospect. [0003] However, due to the strong van der Waals force and very large aspect...
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IPC IPC(8): B01F3/00B01F3/12B01F23/00
Inventor 何燕李少龙王泽鹏
Owner QINGDAO UNIV OF SCI & TECH