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Nano-carbon material dispersion liquid and preparation method and equipment thereof

A nano-carbon material and dispersion technology, applied in nanotechnology and other directions, can solve the problems of inability to completely solve the problem of nanomaterial particle agglomeration, unfavorable for storage and transportation, and unable to exist stably for a long time, achieving better dispersion effect and easy storage. and transport, long-term effects

Active Publication Date: 2011-09-14
深圳市贝特瑞新能源技术研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The nano-carbon material dispersion obtained by the above method cannot completely solve the problem of agglomeration of nano-material particles, cannot exist stably for a long time, is not conducive to storage and transportation, and greatly limits its application range

Method used

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  • Nano-carbon material dispersion liquid and preparation method and equipment thereof
  • Nano-carbon material dispersion liquid and preparation method and equipment thereof
  • Nano-carbon material dispersion liquid and preparation method and equipment thereof

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preparation example Construction

[0030] The preparation method of nano carbon material dispersion liquid of the present invention, comprises the following steps:

[0031] 1. Pre-dispersion treatment. According to the mass ratio of the final nano-carbon material dispersion liquid, 0.5-20% of the nano-carbon material, 0-10% of the dispersion aid, 0-5% of the stabilizer, and the rest are dispersion solvents. The dispersion aid, The stabilizer is dissolved in the dispersing solvent, and pre-dispersed after adding the nano-carbon material. Pre-dispersion adopts high-speed stirring, grinding, mixing or ultrasonic oscillation physical methods, high-speed stirring speed 2000-8000rmp, time 1-6h; ball milling speed 30-120rpm, time 2-48h; internal mixer rotor speed 15-80rpm, time 0.5 -5h; ultrasonic oscillation frequency 20-40KHz, power density 100-300W / cm 2 , time 0.5-8h. A predispersed suspension is obtained in the manner described above. The purpose of pre-dispersion is to preliminarily disperse nano-carbon materi...

Embodiment 1-12

[0040] Embodiment 1-12 The high-pressure pump adopts the QUANTUM ESP 77S type high-pressure pump of Techni Waterjet Company of Australia, and the first check valve and the second check valve all adopt the B-6929 type check valve of Harwood Engineering Company of the United States. The cavity diameter is the same as that of the piston rod of the high-pressure pump. The diversion channel, diversion channel, and confluence channel of the high-pressure dispersion chamber are all cylindrical, with diameters of 5-20mm, 0.1-0.5mm, and 0.5-1mm respectively, and the steering angle is 90° .

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Abstract

The invention discloses a nano-carbon material dispersion liquid, and a preparation method and preparation equipment of the nano-carbon material dispersion liquid, and aims to prepare a nano-carbon material dispersion system which contains uniformly distributed nano-carbon particles and is stable. The dispersion liquid comprises the following components in percentage by mass: 0.5 to 20 percent ofthe nano-carbon material, and the balance of dispersion solvent. The preparation method comprises the steps of pre-dispersion and high-pressure dissociation dispersion. The preparation equipment consists of pre-dispersion equipment and high-pressure dissociation dispersion equipment. Compared with the prior art, a high-pressure dispersion method is introduced into the preparation method, and morethan two paths of 50 to 500MPa high-pressure liquid flows are guided to one place and converged together to ensure that the high-pressure liquid flows generate violent collision to fully dissociate the nano-carbon material in the high-pressure liquid flows, so that the nano-carbon material is uniformly distributed in the dispersion solvent to achieve a more effective dispersion effect of the nanomaterial; besides, the obtained nano-carbon material dispersion liquid is better in dispersion effect, can exist stably for a long time, and is convenient to store and transport.

Description

technical field [0001] The invention relates to a nano material dispersion liquid and its preparation method and equipment, in particular to a dispersion liquid with nano carbon material as the main component and its preparation method and equipment. Background technique [0002] The particle size of nanomaterials is very small, so they usually have large specific surface area and high free energy, which makes it very easy to agglomerate between nanomaterial particles. Aggregates generally exist in the form of several times, tens of times, or even thousands of times the volume of the original nanomaterial particles. When nanomaterials are combined with other materials, they need to be in a uniformly dispersed distribution state in other matrix materials, and the agglomeration of nanomaterial particles prevents them from being effectively dispersed in matrix materials, which not only makes The performance of nanomaterials is difficult to fully exert, and it increases the dif...

Claims

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Application Information

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IPC IPC(8): C01B31/00C01B31/02B82Y40/00
Inventor 梁奇梅佳岳敏张少波时浩
Owner 深圳市贝特瑞新能源技术研究院有限公司
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