Phase change material and preparation method and application thereof
A technology of phase change energy storage materials and substrates, applied in heat exchange materials, chemical instruments and methods, etc., can solve problems such as reducing heat transfer efficiency, increasing production costs, increasing heat transfer medium and phase change material thermal resistance, etc. , to achieve the effect of wide application range, high phase transition enthalpy and moderate phase transition temperature
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[0096] In the present invention, the preparation method of the foam carrier comprises the following steps: thoroughly mixing the base material, foaming agent, modifier, lubricant, nucleating agent and other auxiliary agents, and then adding them into an extruder for Melting and blending, extruding, cooling and granulating to obtain primary particles of the foaming carrier; and then foaming the primary particles of the foaming carrier to obtain the product.
[0097] A second aspect of the present invention provides a method for preparing the phase change energy storage material, comprising the following steps:
[0098] (1) The foaming carrier is placed in a stirring device for heating and stirring;
[0099] (2) Paraffin wax is heated and converted into liquid paraffin;
[0100] (3) Add the liquid paraffin obtained in step (2) directly into the stirring device of step (1), and stir for 1-3 hours under the condition that the temperature is not higher than 200° C., to obtain the ...
Embodiment 1
[0107] Embodiment 1 provides a phase change energy storage material, and the preparation raw materials of the phase change energy storage material include foam carrier and paraffin.
[0108] The raw materials for the preparation of the foam carrier, in parts by weight, include: 140 parts of substrate, 30 parts of foaming agent, 20 parts of modifier, 5 parts of lubricant, 4 parts of nucleating agent, and 2 parts of other auxiliary agents; The substrate is a mixture of polypropylene, acrylonitrile-butadiene-styrene copolymer and ethylene-butyl acrylate copolymer in a weight ratio of 1:0.2:0.4; the melt flow rate of the polypropylene is 3.1 g / 10min, purchased from Yuyao Yingcang Plastic Chemical Co., Ltd., brand T30S; the melt flow rate of the acrylonitrile-butadiene-styrene copolymer is 4.6g / 10min of acrylonitrile-butadiene-styrene Ethylene copolymer, purchased from Haosheng Plastic Raw Material Management Department, Zhangmutou, Dongguan City, brand D-1000; the source of the bu...
Embodiment 2
[0114] Embodiment 2 provides a phase change energy storage material, and the preparation raw materials of the phase change energy storage material include foam carrier and paraffin.
[0115] The raw materials for the preparation of the foam carrier, in parts by weight, include: 100 parts of substrate, 10 parts of foaming agent, 5 parts of modifier, 1 part of lubricant, 1 part of nucleating agent, and 1 part of other auxiliary agents; The substrate is a mixture of polypropylene, acrylonitrile-butadiene-styrene copolymer and ethylene-butyl acrylate copolymer in a weight ratio of 1:0.2:0.4; the melt flow rate of the polypropylene is 3.1 g / 10min, purchased from Yuyao Yingcang Plastic Chemical Co., Ltd., brand T30S; the melt flow rate of the acrylonitrile-butadiene-styrene copolymer is 4.6g / 10min of acrylonitrile-butadiene-styrene Ethylene copolymer, purchased from Haosheng Plastic Raw Material Management Department, Zhangmutou, Dongguan City, brand D-1000; the source of the butene...
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Abstract
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