CAJ | 학술논문

以正硅酸乙酯作为硅源，采用溶胶—凝胶法制备Na2 SO4/SiO2纳米介孔限域微纳米结构复合材料和Na2 SO4/SiO2核-壳结构纳米颗粒，并对其热性能进行研究。硫酸钠在复合材料中充当固-液相变的潜热储存物质，而二氧化硅作为载体材料，以提供结构强度并防止熔融的无机盐的泄漏。所制备复合材料的形貌和结构分别采用扫描电子显微镜( SEM )和X射线粉末衍射仪( XRD)进行了表征。通过对复合材料热性能的研究表明其具有优异的储热性能。
이정규산을지작위규원，채용용효—응효법제비Na2 SO4/SiO2납미개공한역미납미결구복합재료화Na2 SO4/SiO2핵-각결구납미과립，병대기열성능진행연구。류산납재복합재료중충당고-액상변적잠열저존물질，이이양화규작위재체재료，이제공결구강도병방지용융적무궤염적설루。소제비복합재료적형모화결구분별채용소묘전자현미경( SEM )화X사선분말연사의( XRD)진행료표정。통과대복합재료열성능적연구표명기구유우이적저열성능。
The Na2 SO4/SiO2 mesoporous micro/nanocomposites and Na2 SO4/SiO2 core-shell nanoparticles were prepared by Sol-gel method taking TEOS as the silica source. The thermal properties of the resulting products were studied. Na2 SO4 in the composites acted as a latent heat storage substance for solid-liquid phase change, while SiO2 acted as support materials to provide structural strength and prevent leakage of melted Na2 SO4. The morphology and microstructure of the prepared composites were characterized by scanning electron microscope ( SEM) and X-ray powder diffraction ( XRD) . The thermal properties of composites showed excellent heat storage properties.