Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Silica gel-coated porous ceramic-based composite phase change heat storage material and preparation method thereof
The invention discloses a preparation method of a silica gel-coated porous ceramic-based composite phase change heat storage material, which comprises the following steps: S1, preparing the following raw materials in percentage by mass: 20-60% of fly ash, 20-70% of high-alumina bauxite, 10-20% of clay minerals, 2-5% of binder and 2-5% of pore-forming agent, the addition amount of the pore-forming agent is 20-30% of the sum of the above four components. The preparation method is reasonable in design, phase conversion of the fly ash and noxious substance curing are achieved through a high-temperature roasting solid-phase reaction, and therefore the prepared porous ceramic material shows excellent compressive strength and heat transfer performance and is good in compatibility with a phase change material, the phase change material can be adsorbed through a rich porous structure, leakage of the phase change material in the phase change process is prevented, and the service life of the porous ceramic material is prolonged. Silica gel is additionally added for secondary sealing treatment, so that the leakage risk of the phase-change material is greatly reduced, and the phase-change material has good thermal stability and stable phase-change latent heat and phase-change temperature.
本发明公开了一种硅胶包裹多孔陶瓷基复合相变储热材料的制备方法，包括以下步骤：S1，准备由粉煤灰、高铝矾土、黏土类矿物、粘结剂、造孔剂组成的原料，所述粉煤灰、高铝矾土、黏土类矿物、粘结剂质量比分别为20％‑60％、20％‑70％、10％‑20％、2％‑5％，所述造孔剂添加量为前述四者总和的20％‑30％。本发明设计合理，该方法利用高温焙烧固相反应来实现粉煤灰的物相转化与有害物固化，因此制备的多孔陶瓷材料表现出优异抗压强度和传热性能，且与相变材料相容性好，能够利用丰富多孔结构吸附相变材料，防止其相变过程泄漏，还额外增加硅胶进行二次密封处理，极大的降低了相变材料泄露风险，具有很好的热稳定性、相变潜热和相变温度稳定。
Silica gel-coated porous ceramic-based composite phase change heat storage material and preparation method thereof
The invention discloses a preparation method of a silica gel-coated porous ceramic-based composite phase change heat storage material, which comprises the following steps: S1, preparing the following raw materials in percentage by mass: 20-60% of fly ash, 20-70% of high-alumina bauxite, 10-20% of clay minerals, 2-5% of binder and 2-5% of pore-forming agent, the addition amount of the pore-forming agent is 20-30% of the sum of the above four components. The preparation method is reasonable in design, phase conversion of the fly ash and noxious substance curing are achieved through a high-temperature roasting solid-phase reaction, and therefore the prepared porous ceramic material shows excellent compressive strength and heat transfer performance and is good in compatibility with a phase change material, the phase change material can be adsorbed through a rich porous structure, leakage of the phase change material in the phase change process is prevented, and the service life of the porous ceramic material is prolonged. Silica gel is additionally added for secondary sealing treatment, so that the leakage risk of the phase-change material is greatly reduced, and the phase-change material has good thermal stability and stable phase-change latent heat and phase-change temperature.
本发明公开了一种硅胶包裹多孔陶瓷基复合相变储热材料的制备方法，包括以下步骤：S1，准备由粉煤灰、高铝矾土、黏土类矿物、粘结剂、造孔剂组成的原料，所述粉煤灰、高铝矾土、黏土类矿物、粘结剂质量比分别为20％‑60％、20％‑70％、10％‑20％、2％‑5％，所述造孔剂添加量为前述四者总和的20％‑30％。本发明设计合理，该方法利用高温焙烧固相反应来实现粉煤灰的物相转化与有害物固化，因此制备的多孔陶瓷材料表现出优异抗压强度和传热性能，且与相变材料相容性好，能够利用丰富多孔结构吸附相变材料，防止其相变过程泄漏，还额外增加硅胶进行二次密封处理，极大的降低了相变材料泄露风险，具有很好的热稳定性、相变潜热和相变温度稳定。
Silica gel-coated porous ceramic-based composite phase change heat storage material and preparation method thereof
一种硅胶包裹多孔陶瓷基复合相变储热材料及其制备方法
LIU JICHENG (Autor:in) / ZHEN ZHIHAO (Autor:in)
03.12.2024
Patent
Elektronische Ressource
Chinesisch
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