Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-strength ceramic-based phase change aggregate
The invention relates to a preparation method of a high-strength ceramic-based phase-change aggregate, which comprises the following steps: by using a gel forming technology, taking a liquid organic material as a core material, taking ceramic slurry as a wall material, dripping a metal salt dripping material into the ceramic slurry containing sodium alginate by using a back dripping method, and preparing the high-strength ceramic-based phase-change aggregate under the action of a thickening agent, thereby obtaining the high-strength ceramic-based phase-change aggregate. The preparation method comprises the following steps: adding sodium alginate into a drop material, fully reacting the drop material with sodium alginate and forming ceramic gel beads in ceramic slurry, finally, curing, drying, sintering and modifying, so that the ceramic gel beads have hollow structures with porous surfaces and relatively high strength, and the phase change material can be sucked into the hollow structures in a vacuum adsorption manner in the later stage, so that the phase change effect is improved. The high-strength ceramic-based phase change aggregate containing the phase change material is obtained. According to the invention, the size structure of the ceramic-based pellets is adjustable, and the ceramic-based pellets can adsorb more phase-change materials, are millimeter-level materials, and can be used as phase-change aggregates, so that the heat storage capacity of the phase-change aggregates is improved.
本发明为一种高强陶瓷基相变骨料的制备方法，利用凝胶成型技术，以液态有机材料作为芯材，以陶瓷浆料作为壁材，利用反滴法，将金属盐滴料滴入含有海藻酸钠的陶瓷浆料中，在增稠剂的作用下，使得滴料能够与海藻酸钠充分反应并在陶瓷浆料内部形成陶瓷凝胶小球，最后通过固化、干燥、烧结、改性处理，使得陶瓷基小球具有表面多孔且具有较高强度的空心结构，能够后期通过真空吸附的方式将相变材料吸入空心结构中，得到内含相变材料的高强陶瓷基相变骨料。本发明中陶瓷基小球的尺寸结构可调控，能够吸附更多的相变材料，为毫米级材料，能够作为相变骨料使用，提升相变骨料的蓄热能力。
Preparation method of high-strength ceramic-based phase change aggregate
The invention relates to a preparation method of a high-strength ceramic-based phase-change aggregate, which comprises the following steps: by using a gel forming technology, taking a liquid organic material as a core material, taking ceramic slurry as a wall material, dripping a metal salt dripping material into the ceramic slurry containing sodium alginate by using a back dripping method, and preparing the high-strength ceramic-based phase-change aggregate under the action of a thickening agent, thereby obtaining the high-strength ceramic-based phase-change aggregate. The preparation method comprises the following steps: adding sodium alginate into a drop material, fully reacting the drop material with sodium alginate and forming ceramic gel beads in ceramic slurry, finally, curing, drying, sintering and modifying, so that the ceramic gel beads have hollow structures with porous surfaces and relatively high strength, and the phase change material can be sucked into the hollow structures in a vacuum adsorption manner in the later stage, so that the phase change effect is improved. The high-strength ceramic-based phase change aggregate containing the phase change material is obtained. According to the invention, the size structure of the ceramic-based pellets is adjustable, and the ceramic-based pellets can adsorb more phase-change materials, are millimeter-level materials, and can be used as phase-change aggregates, so that the heat storage capacity of the phase-change aggregates is improved.
本发明为一种高强陶瓷基相变骨料的制备方法，利用凝胶成型技术，以液态有机材料作为芯材，以陶瓷浆料作为壁材，利用反滴法，将金属盐滴料滴入含有海藻酸钠的陶瓷浆料中，在增稠剂的作用下，使得滴料能够与海藻酸钠充分反应并在陶瓷浆料内部形成陶瓷凝胶小球，最后通过固化、干燥、烧结、改性处理，使得陶瓷基小球具有表面多孔且具有较高强度的空心结构，能够后期通过真空吸附的方式将相变材料吸入空心结构中，得到内含相变材料的高强陶瓷基相变骨料。本发明中陶瓷基小球的尺寸结构可调控，能够吸附更多的相变材料，为毫米级材料，能够作为相变骨料使用，提升相变骨料的蓄热能力。
Preparation method of high-strength ceramic-based phase change aggregate
一种高强陶瓷基相变骨料的制备方法
RAO ZHONGHAO (Autor:in) / ZHANG GUANGTONG (Autor:in) / LIU CHENZHEN (Autor:in)
21.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Preparation method of ceramic-based phase change aggregate with hollow structure
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