Preparation method of nano-encapsulated phase change material

A phase change material and nanocapsule technology, applied in the field of nanomaterials, can solve the problems of long preparation time, complicated experimental process, and unsuitable for large-scale production.
CN105586010AInactive Publication Date: 2016-05-18SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Publication Date
2016-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a nano-encapsulated phase change material. The preparation method comprises the following steps: a phase change material and acrylic ester are uniformly mixed according to a mass ratio 2:3-1:2, and first mixed liquor is obtained; an emulsifier solution is added for emulsification of the first mixed liquor, and uniformly dispersed second mixed liquor is obtained; an initiator solution is added with uniformly mixing, a third mixed liquor is obtained, temperature of the third mixed liquor is adjusted to 82-85 DEG C, insulation is carried out for 20-50 minutes, temperature of the third mixed liquor is adjusted to 80-83 DEG C, insulation is carried out till full reaction, temperature is reduced to room temperature, and a crude product is obtained; purification is carried out for the crude product, and the nano-encapsulated phase change material is obtained. Conditions for polymerization are controlled, so that on one hand full polymerization of the acrylic ester is guaranteed, and on the other hand reaction time is substantially reduced; the method is suitable for large scale production.
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Description

technical field

[0001] The invention relates to the field of nanomaterials, in particular to a preparation method of a nanocapsule phase change material. Background technique

[0002] Microcapsule phase change material (MEPCM) and nanocapsule phase change material (NEPCM) are composed of capsule structure with phase change material (PCM) as core material and organic or inorganic material as shell layer. The main function of this capsule structure is to maintain the shape of the phase change material and to prevent the leakage of its phase change process. For the research on MEPCM at the micron scale, there are already industrialized products coming out, which are mainly used in construction, solar energy and other fields. The shell material of the microcapsules is mainly organic polymer. At present, the particle size of mainstream capsule products on the market is usually on the micron scale. For applications in special fields, such as functional thermal fluids, nanocapsule...

Claims

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