A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a waterproof leakproof phase change heat storage material. A preparation method of the waterproof leakproof phase change heat storage material comprises the following steps: preparing a hydroxylated phase change heat storage material by using a polyethylene glycol phase change heat storage material; preparing a cross-linked modified phase change heat storage material; preparing a phase change porous material loaded with the cross-linked modified phase change heat storage material; the calcium carbonate powder containing stearic acid and the fly ash adsorbing fatty acid are mixed and heated, the phase change porous material is added, uniform stirring and granulation are performed, and cooling is performed to obtain the product. Chemical groups with specific functions are introduced into the molecular structure of the polyethylene glycol type phase change heat storage material, so that the physical and chemical properties of the polyethylene glycol type phase change heat storage material are improved; a three-dimensional network structure is formed through cross-linking modification of PCM, so that the volume change of the PCM in the phase change process is limited, and the problems of structural stress concentration and cracking when the PCM is prepared into the phase change heat storage plate are solved; the phase-change porous material is granulated and wrapped by calcium carbonate powder containing stearic acid and fly ash adsorbing fatty acid, so that the adverse effect on the performance stability of the phase-change material when water invades is prevented.
本发明涉及一种防水防泄漏相变蓄热材料，包括以下步骤：利用聚乙二醇类相变蓄热材料制备羟基化相变蓄热材料；制备交联改性相变蓄热材料；制备负载交联改性相变蓄热材料的相变多孔材料；将含硬脂酸的碳酸钙粉末和吸附脂肪酸的粉煤灰混合加热，加入相变多孔材料，搅拌均匀造粒，冷却获得。本发明在聚乙二醇类相变蓄热材料的分子结构中引入具有特定功能的化学基团，以改善其物理和化学性能；通过对PCM交联改性形成三维网络结构，以限制其在相变过程中的体积变化，解决制备成相变蓄热板时结构应力集中和开裂问题；通过含硬脂酸的碳酸钙粉末和吸附脂肪酸的粉煤灰对相变多孔材料进行成粒包裹，防止了水分侵入时对相变材料的性能稳定性产生不利影响。
The invention relates to a waterproof leakproof phase change heat storage material. A preparation method of the waterproof leakproof phase change heat storage material comprises the following steps: preparing a hydroxylated phase change heat storage material by using a polyethylene glycol phase change heat storage material; preparing a cross-linked modified phase change heat storage material; preparing a phase change porous material loaded with the cross-linked modified phase change heat storage material; the calcium carbonate powder containing stearic acid and the fly ash adsorbing fatty acid are mixed and heated, the phase change porous material is added, uniform stirring and granulation are performed, and cooling is performed to obtain the product. Chemical groups with specific functions are introduced into the molecular structure of the polyethylene glycol type phase change heat storage material, so that the physical and chemical properties of the polyethylene glycol type phase change heat storage material are improved; a three-dimensional network structure is formed through cross-linking modification of PCM, so that the volume change of the PCM in the phase change process is limited, and the problems of structural stress concentration and cracking when the PCM is prepared into the phase change heat storage plate are solved; the phase-change porous material is granulated and wrapped by calcium carbonate powder containing stearic acid and fly ash adsorbing fatty acid, so that the adverse effect on the performance stability of the phase-change material when water invades is prevented.
本发明涉及一种防水防泄漏相变蓄热材料，包括以下步骤：利用聚乙二醇类相变蓄热材料制备羟基化相变蓄热材料；制备交联改性相变蓄热材料；制备负载交联改性相变蓄热材料的相变多孔材料；将含硬脂酸的碳酸钙粉末和吸附脂肪酸的粉煤灰混合加热，加入相变多孔材料，搅拌均匀造粒，冷却获得。本发明在聚乙二醇类相变蓄热材料的分子结构中引入具有特定功能的化学基团，以改善其物理和化学性能；通过对PCM交联改性形成三维网络结构，以限制其在相变过程中的体积变化，解决制备成相变蓄热板时结构应力集中和开裂问题；通过含硬脂酸的碳酸钙粉末和吸附脂肪酸的粉煤灰对相变多孔材料进行成粒包裹，防止了水分侵入时对相变材料的性能稳定性产生不利影响。
Waterproof and leakproof phase change heat storage material, preparation method of phase change heat storage thermal insulation wallboard and flexible sunlight greenhouse
防水防泄漏相变蓄热材料、相变蓄热保温墙板的制备方法及柔性日光温室
SU BIN (author)
2024-11-15
Patent
Electronic Resource
Chinese
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