Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Micro-nano-pore structure core material and preparation method of vacuum insulation panel of micro-nano-pore structure core material
The invention provides a preparation method of a micro-nano pore structure core material and a vacuum insulation panel thereof, and the method comprises the following steps: 1, preparing a glass wool core material by using centrifugal cotton and flame cotton as raw materials through a wet papermaking process; and 2, preparing the fumed silica composite core material by using fumed silica powder, an opacifying agent, polyester chopped strand fibers and second phase heating powder as raw materials and adopting a dry powder mixing process. The blockage and migration mechanism of fibers in the forming process of the glass wool slurry is disclosed, the microstructure characteristics of the glass wool core material under different drying conditions and different stages are analyzed, and the optimal preparation process parameters of the glass wool vacuum insulated panel with the low heat conductivity coefficient are obtained. The relation between components of the polyester fiber/multi-particle-size powder composite core material and various heat conduction of the vacuum insulation panel is established, and the hollow glass bead/fumed silica vacuum insulation panel and the rice hull ash/fumed silica vacuum insulation panel which are excellent in heat insulation performance are prepared. The method can be popularized and applied in the thermal insulation fields of buildings, household appliances, cold chains and the like.
本发明提供一种微纳米孔结构芯材及其真空绝热板的制备方法，所述方法步骤为：一、以离心棉和火焰棉为原材料，通过湿法造纸工艺制得玻璃棉芯材；二、以气相二氧化硅粉末、遮光剂、聚酯短切丝纤维和第二相隔热粉末为原材料，采用干粉混合工艺制得气相二氧化硅复合芯材。揭示了玻璃棉浆料在成型中纤维的堵塞和迁移机制，分析了玻璃棉芯材在不同烘干条件和不同阶段下的微结构特性，获得了低导热系数玻璃棉真空绝热板的最佳制备工艺参数，建立了聚酯纤维/多粒径粉末复合芯材的组分与真空绝热板的各项热传导之间的关系，制备出隔热性能优良的空心玻璃微珠/气相二氧化硅真空绝热板和稻壳灰/气相二氧化硅真空绝热板。可在建筑、家电、冷链等保温领域进行推广应用。
Micro-nano-pore structure core material and preparation method of vacuum insulation panel of micro-nano-pore structure core material
The invention provides a preparation method of a micro-nano pore structure core material and a vacuum insulation panel thereof, and the method comprises the following steps: 1, preparing a glass wool core material by using centrifugal cotton and flame cotton as raw materials through a wet papermaking process; and 2, preparing the fumed silica composite core material by using fumed silica powder, an opacifying agent, polyester chopped strand fibers and second phase heating powder as raw materials and adopting a dry powder mixing process. The blockage and migration mechanism of fibers in the forming process of the glass wool slurry is disclosed, the microstructure characteristics of the glass wool core material under different drying conditions and different stages are analyzed, and the optimal preparation process parameters of the glass wool vacuum insulated panel with the low heat conductivity coefficient are obtained. The relation between components of the polyester fiber/multi-particle-size powder composite core material and various heat conduction of the vacuum insulation panel is established, and the hollow glass bead/fumed silica vacuum insulation panel and the rice hull ash/fumed silica vacuum insulation panel which are excellent in heat insulation performance are prepared. The method can be popularized and applied in the thermal insulation fields of buildings, household appliances, cold chains and the like.
本发明提供一种微纳米孔结构芯材及其真空绝热板的制备方法，所述方法步骤为：一、以离心棉和火焰棉为原材料，通过湿法造纸工艺制得玻璃棉芯材；二、以气相二氧化硅粉末、遮光剂、聚酯短切丝纤维和第二相隔热粉末为原材料，采用干粉混合工艺制得气相二氧化硅复合芯材。揭示了玻璃棉浆料在成型中纤维的堵塞和迁移机制，分析了玻璃棉芯材在不同烘干条件和不同阶段下的微结构特性，获得了低导热系数玻璃棉真空绝热板的最佳制备工艺参数，建立了聚酯纤维/多粒径粉末复合芯材的组分与真空绝热板的各项热传导之间的关系，制备出隔热性能优良的空心玻璃微珠/气相二氧化硅真空绝热板和稻壳灰/气相二氧化硅真空绝热板。可在建筑、家电、冷链等保温领域进行推广应用。
Micro-nano-pore structure core material and preparation method of vacuum insulation panel of micro-nano-pore structure core material
一种微纳米孔结构芯材及其真空绝热板的制备方法
ZHOU WUZHONG (Autor:in) / DU YUAN (Autor:in) / QIU XIN (Autor:in) / LI JIE (Autor:in)
29.04.2022
Patent
Elektronische Ressource
Chinesisch
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