Method and device for preparing nanoscale dispersion liquid

A dispersion liquid and nano-scale technology, applied in the direction of mixing methods, chemical instruments and methods, transportation and packaging, etc., can solve the problems of limited preparation volume, discontinuous preparation process, and increase in particle size of nanoparticles, so as to avoid excessive dilution, Achieving mass preparation and improving the effect of particle size
CN108745015AActive Publication Date: 2018-11-06YANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGZHOU UNIV
Publication Date
2018-11-06

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Abstract

The invention discloses a method and a device for preparing nanoscale dispersion liquid. A hydrophobic compound is dissolved into an organic solvent as an organic phase, the organic phase, as more than one strand of liquid, and more than one strand of a water phase flow in a jet manner in a multi-inlet mixer cavity for continuous mixing to obtain mixed liquid, the mixed liquid flowing out of the cavity is continuously and circularly flown in the jet manner to return into the multi-inlet mixer cavity, and is then mixed with the organic phase and the water phase again, and the mixed liquid flowsout of a multi-inlet mixer until dispersion liquid with preset concentration is obtained, so that the nanoscale dispersion liquid is obtained. Nanoscale particles are quickly mixed and formed insidethe cavity once, the process of secondary particle formation caused by the fact that secondary attenuation mixing further needs to be carried out with a hydrophilic phase after flowing out of the cavity is avoided, and the particle size, distribution and stability of the dispersion liquid are improved; sufficiently large proportion water content and degree of supersaturation can be provided duringmixing through the application of recycle mixing, instantly uniform formation of particles is guaranteed, and meanwhile, the dispersion liquid is avoided from being excessively diluted due to an overlarge water proportion.
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Description

technical field

[0001] The invention relates to a method and device for preparing a nanoscale dispersion liquid, belonging to the field of nanomaterial preparation. Background technique

[0002] Nanoscale dispersions such as nanoemulsions and nanosuspensions have large specific surface areas due to their small size, and exhibit excellent properties in terms of dissolution rate, viscosity, transparency, utility, and stability. It is widely used in medicine, food, mechanical processing, construction, printing and dyeing, petrochemical, daily chemical and other industries, and the demand is huge. Nanoemulsion is a multi-phase dispersion system formed by dispersing nano-droplets in another immiscible liquid, while suspension is a multi-phase dispersion system formed by dispersing nano-solid particles in a liquid . The conventional preparation methods of nanoemulsions and nanosuspensions: mechanical ball milling, high-pressure homogenization, and drop stirring methods have the ...

Claims

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