Title:
PHASE CHANGE MICROCAPSULE HAVING HIGH BLENDING FLUIDITY AND HIGH PHASE CHANGE LATENT HEAT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/012302
Kind Code:
A1
Abstract:
Disclosed are a phase change microcapsule having high blending fluidity and high phase change latent heat, and a preparation method therefor. The preparation method for the phase change microcapsule of the present invention comprises the following steps: 1) heating and melting an organic phase change material to obtain a liquid core material; 2) evenly dispersing an emulsifying and dispersing agent by adding water, then adding urea, ammonium chloride and a polyphenol, mixing evenly, and adjusting the pH value of the mixed solution to 2.5-3.5 to obtain an aqueous phase solution; 3) adding the liquid core material and a defoamer to the aqueous phase solution to perform emulsification to obtain an oil-in-water emulsion; and 4) adding a formaldehyde solution and a dispersant to the oil-in-water emulsion, fully reacting, and then filtering, washing and drying. The phase change microcapsule of the present invention has good blending fluidity, high phase change latent heat, and a simple preparation process, and may be widely used in the fields of electronic packaging, textiles, construction, and the like.
Inventors:
YANG JINGLEI (CN)
AN JINLIANG (CN)
SUN SAILING (CN)
AN JINLIANG (CN)
SUN SAILING (CN)
Application Number:
PCT/CN2019/098599
Publication Date:
January 28, 2021
Filing Date:
July 31, 2019
Export Citation:
Assignee:
THE HKUST FOK YING TUNG RES INSTITUTE GUANGZHOU (CN)
International Classes:
B01J13/16; C09K5/06
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Other References:
CHUANJIE FAN ET AL.: "Influence of operating conditions on the surface morphology of microcapsules", COLLOIDS AND SURFACES A: PHYSICOCHEM. ENG. ASPECTS, vol. 363, no. 1-3, 30 June 2010 (2010-06-30), XP027060303, DOI: 20200424170950A
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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