Double emulsified glass capillary microfluidic chip and phase change microcapsule prepared thereby

Abstract

The invention belongs to the technical field of preparation of phase change microcapsule materials, and discloses a double emulsified glass capillary microfluidic chip and a phase change microcapsuleprepared thereby. The double emulsified glass capillary microfluidic chip is used to prepare a phase change material microemulsion, the controllability of the prepared capsule is greatly enhanced, andthe practical value of the capsule is increased; and a high precision syringe pump is used to precisely control the emulsification process of a core material and a wall material in the microfluidic chip, and the phase change material microemulsion with good monodispersity and high sphericity is obtained. An UV curing wall material is used to reduce preparation time and cost, and the controllability of the wall material is improved. The preparation process has the advantages of simple equipment, simple operation, high utilization rate of raw materials, easy control of product particle size, sphericity, small shell thickness and core material size, no noise, no harmful waste, low energy consumption, and the like, and is suitable for promotion and application of various phase change microcapsules in scientific research and industry.

Description

technical field

[0001] The invention belongs to the technical field of preparation of phase-change microcapsule materials, and in particular relates to a double-emulsified glass capillary microfluidic chip and the phase-change microcapsule made therefrom. Background technique

[0002] In recent years, thermal energy storage technology (TES) has become an important energy-saving new technology, which has played a very significant role in improving energy utilization efficiency, and has become a very active research hotspot in the field of energy science. Phase change materials are a type of energy storage materials that can store and release a large amount of latent heat, and are widely used in heat storage and temperature control. However, due to the general corrosion of phase change materials, low heat transfer efficiency and solid-liquid transition, The use of phase change materials is limited. Microencapsulated phase change materials are a new technology that applies cap...

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