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Preparation method of normal-temperature phase-change microcapsule heat storage board

A technology of phase change microcapsules and normal temperature, which is applied in the direction of microcapsule preparation, preparation of microspheres, heat exchange materials, etc. It can solve the problems of unsuitable for normal temperature energy storage, leakage of phase change materials, poor structural strength, etc., and achieve phase change The effect of wide temperature range, protection of phase change materials, and improvement of overall structural strength

Inactive Publication Date: 2018-06-08
蔡兴礼
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problems and deficiencies of poor structural strength and unsuitability for energy storage at room temperature existing in existing latent heat energy storage materials, and provides a preparation method for room temperature phase change microcapsule heat storage plates
Phase change materials with concentrated low-temperature phase transition temperature are mixed in a certain proportion to obtain phase change materials at room temperature, which not only solves the problem of energy storage of phase change materials at room temperature, but also solves the problem of phase change materials during solid-liquid phase transition. Leakage problems, while improving the structural strength of thermal energy storage materials, expanding the scope of application

Method used

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  • Preparation method of normal-temperature phase-change microcapsule heat storage board

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Embodiment 1

[0019] Embodiment 1: A preparation method of a normal temperature phase change microcapsule heat storage plate, the preparation method includes the following steps:

[0020] (1) Preparation of phase change capsule core at room temperature: first weigh the capsule core according to the proportion, the capsule core is 2kg of 44# paraffin, 2kg of liquid paraffin and 1kg of dodecanol. Then heat and melt at 45°C, stir at a stirring speed of 2000r / min, and stir for 5min to make it fully mixed and uniform into a transparent liquid.

[0021] (2) Dispersion of the phase change capsule core at room temperature: Add 0.1 kg of Span, 0.1 kg of Tween 80, and 20 liters of deionized water under the conditions of the preparation method, and continue stirring for 20 minutes.

[0022] (3) Lay the substrate on the bottom of the incubator at 40-140°C, with honeycomb continuous grooves distributed on the upper side of the substrate; lay the mixed solution stirred in step (2) on the side of the subs...

Embodiment 2

[0029] Example 2: Another method for preparing a normal-temperature phase-change microcapsule heat storage plate, the preparation method includes the following steps:

[0030](1) Preparation of phase change capsule core at room temperature: first weigh the capsule core according to the proportion, the capsule core is 44# paraffin, liquid paraffin, lauryl alcohol, the ratio is 2 ~ 3:2 ~ 3:1; then at 45 ° C Heating and melting at low temperature, the stirring speed is 2000r / min, and stirring for 5 minutes, so that it is fully mixed and evenly formed into a transparent liquid.

[0031] (2) Dispersion of the phase change capsule core at room temperature: Add the mixture of Span 80, Tween 80, and deionized water under the conditions of the preparation method, and the ratio is 1:1:200, and continue to stir for 20 minutes.

[0032] (3) Capsule wall polymer layer coating: the capsule wall is acrylic resin obtained by polycondensation reaction of methyl methacrylate, methacrylic acid, ...

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Abstract

The invention discloses a preparation method of a normal-temperature phase-change microcapsule heat storage board. Phase-change capsule core materials, namely 44# paraffin, liquid paraffin and dodecylalcohol, are firstly mixed according to a certain ratio to obtain a normal-temperature phase-change material; meanwhile, a low-temperature phase-change material is coated through high molecular polymerization by a certain technology to prepare novel normal-temperature phase-change microcapsules; and a film coating layer in a hot-melt state is compressed into a honeycomb continuous groove of a substrate through the honeycomb convex and concave surface of a surface layer, and phase-change materials can be sealed in an independent space, so that direct contact between the phase-change materialsand the external environment is prevented, and thus the effect of protecting the phase-change materials is achieved and the phase-change materials can be recycled. Through phase change of the microcapsules at normal temperature, the purposes of environment friendliness and energy saving are achieved through energy storage and energy release.

Description

Technical field: [0001] The invention belongs to the technical field of normal temperature microcapsule heat storage, and in particular relates to a preparation method of a normal temperature phase change microcapsule heat storage plate. Background technique: [0002] With the development of social economy and the advancement of science and technology, energy has become a major issue threatening the survival and development of human beings, and it is an important part of realizing the Chinese dream. Therefore, the research on how to effectively use energy and realize the sustainable development of energy has become a hot spot that human beings pay more attention to. Phase change materials use the large amount of heat absorbed or released during the phase change process to store or release thermal energy when changing temperature, which can effectively solve the mismatch of energy supply in time and space, improve energy utilization, and can also be used Thermal regulation o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06B01J13/16
CPCB01J13/16C09K5/063
Inventor 冶艳
Owner 蔡兴礼
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