Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of modified diatomite-based porous phase change material
The invention discloses a preparation method of a modified diatomite-based porous phase change material, which comprises the following steps: step 1, carrying out acid modification on diatomite, adding 1-3 mol/L of hydrochloric acid solution into diatomite according to the ratio of hydrochloric acid to diatomite being 3: 5, placing in a constant-temperature water bath at 30-70 DEG C, reacting for 30-90 minutes, and after the reaction is completed, washing, carrying out suction filtration and drying to obtain acid-modified diatomite; step 2, carrying out salt modification on the acid-modified diatomite, mixing the acid-modified diatomite and a salt solution according to a mass ratio of 1: 5, carrying out a reaction in a constant-temperature water bath at 30-60 DEG C for 20-40 min, standing after the reaction is completed, pouring out a supernatant liquid, carrying out suction filtration on a waste liquid, and drying for more than 24 h to obtain modified diatomite; and step 3, mixing the modified diatomite and a phase change material through a vacuum adsorption method to prepare the modified diatomite-based porous phase change material. The invention also discloses the modified diatomite-based porous phase change material prepared by the method, and the material has good heat storage and moisture absorption performances, can be used in the building field, and reduces the energy consumption of buildings.
本发明公开了一种改性硅藻土基多孔相变材料的制备方法，包括以下步骤：步骤1，对硅藻土进行酸改，按照盐酸：硅藻土为3:5向硅藻土中加入1～3mol/L的盐酸溶液，置于30～70℃的恒温水浴中反应30～90min，反应完成后洗涤、抽滤、干燥得到酸改硅藻土；步骤2，对酸改硅藻土进行盐改，酸改硅藻土与盐溶液按照1:5的质量比混合，在恒温水浴30～60℃下反应20～40min，待反应完成后静置，倒去上层清液，抽滤废液，干燥时间大于24h，即得改性硅藻土；步骤3，将改性硅藻土和相变材料通过真空吸附法进行混合，制备成改性硅藻土基多孔相变材料；本发明还公开了一种利用本发明的方法制备的改性硅藻土基多孔相变材料，该材料同时具备良好的储热和吸湿性能，可用于建筑领域，降低建筑的能源消耗。
Preparation method of modified diatomite-based porous phase change material
The invention discloses a preparation method of a modified diatomite-based porous phase change material, which comprises the following steps: step 1, carrying out acid modification on diatomite, adding 1-3 mol/L of hydrochloric acid solution into diatomite according to the ratio of hydrochloric acid to diatomite being 3: 5, placing in a constant-temperature water bath at 30-70 DEG C, reacting for 30-90 minutes, and after the reaction is completed, washing, carrying out suction filtration and drying to obtain acid-modified diatomite; step 2, carrying out salt modification on the acid-modified diatomite, mixing the acid-modified diatomite and a salt solution according to a mass ratio of 1: 5, carrying out a reaction in a constant-temperature water bath at 30-60 DEG C for 20-40 min, standing after the reaction is completed, pouring out a supernatant liquid, carrying out suction filtration on a waste liquid, and drying for more than 24 h to obtain modified diatomite; and step 3, mixing the modified diatomite and a phase change material through a vacuum adsorption method to prepare the modified diatomite-based porous phase change material. The invention also discloses the modified diatomite-based porous phase change material prepared by the method, and the material has good heat storage and moisture absorption performances, can be used in the building field, and reduces the energy consumption of buildings.
本发明公开了一种改性硅藻土基多孔相变材料的制备方法，包括以下步骤：步骤1，对硅藻土进行酸改，按照盐酸：硅藻土为3:5向硅藻土中加入1～3mol/L的盐酸溶液，置于30～70℃的恒温水浴中反应30～90min，反应完成后洗涤、抽滤、干燥得到酸改硅藻土；步骤2，对酸改硅藻土进行盐改，酸改硅藻土与盐溶液按照1:5的质量比混合，在恒温水浴30～60℃下反应20～40min，待反应完成后静置，倒去上层清液，抽滤废液，干燥时间大于24h，即得改性硅藻土；步骤3，将改性硅藻土和相变材料通过真空吸附法进行混合，制备成改性硅藻土基多孔相变材料；本发明还公开了一种利用本发明的方法制备的改性硅藻土基多孔相变材料，该材料同时具备良好的储热和吸湿性能，可用于建筑领域，降低建筑的能源消耗。
Preparation method of modified diatomite-based porous phase change material
一种改性硅藻土基多孔相变材料的制备方法
YANG YINGYING (Autor:in) / ZHAO YUGANG (Autor:in) / WU WEIDONG (Autor:in) / LING QINYI (Autor:in) / YANG QIGUO (Autor:in) / REN YAN (Autor:in) / YANG GUOCHENG (Autor:in) / YANG YONGFEI (Autor:in)
30.11.2021
Patent
Elektronische Ressource
Chinesisch
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