Novel method and device for preparing polymer particles

Abstract

The invention relates to a novel method and device for preparing polymer particles. The method includes the following steps that, a conductive organic solvent is pumped into an insulated capillary tube through an injection pump, the capillary tube is sealed and penetrate through a shuttle-shaped pneumatic conveying container which can be sealed, the outlet end of the capillary tube is communicatedwith a nozzle, under the strong electric field effect generated by a high voltage source, the organic solvent is dispersed to form charged droplets, under the traction force effect of electric fieldforce, gravity and flowing gas in the container, the charged droplets are uniformly spread on a grounded collection plate in the shuttle-shaped pneumatic conveying container, and the charged dropletsare grounded through the collection plate so as to remove static electricity, and solid polymer particles are formed. The novel method for preparing the polymer particles is convenient to operate, thedevice for preparing the polymer particles is simple in structure, and the particle size and shape of the obtained products, namely the polymer particles, are uniform, the performance is stable, andthe method and the device are conducive to application and popularization.

Description

technical field [0001] The invention relates to a method for preparing polymer particles, in particular to a new method and device for preparing polymer particles. Background technique [0002] Polymer particles (in the prior art, generally referring to micron or nanoscale particles) are widely used in materials, chemical industry, energy, biology, medical treatment, food, water treatment, oil exploration and other fields, and the research on their properties and preparation methods is becoming more and more extensive and in-depth At present, the preparation methods of polymer particles mainly include emulsion polymerization, microemulsion polymerization and organic synthesis. These methods have their own distinctive features, but there are obvious problems. Particles, but a large amount of surfactant is required, and it is difficult to remove the residue of surfactant in the product. Therefore, the performance of the polymer will be greatly affected, and its application is ...

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Problems solved by technology

[0002] Polymer particles (in the prior art, generally referring to micron or nanoscale particles) are widely used in materials, chemical industry, energy, biology, medical treatment, food, water treatment, oil exploration and other fields, and the research on their properties and preparation methods is becoming more and more extensive and in-depth At present, the preparation methods of polymer particles mainly include emulsion polymerization, microemulsion polymerization and organic synthesis. These methods have their own distinctive features, but there are obvious problems. Particles, but a large amount of surfactant is required, and it is difficult to remove the residue of surfactant in the product. Therefore, the performance of the polymer will be greatly affected, and its application is limited, especially the existence of surfactant has a negative effect on the nanoparticle in the biological system. It is very unfavorable to use in

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