Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon-based aerogel-foam material heat insulation composite material
The invention relates to a preparation method of a silicon-based aerogel-foam material heat insulation composite material. The prepared material has a three-dimensional nano porous network structure, and compared with a traditional outer wall external thermal insulation material and a pure foaming material, the composite material solves the problems that a traditional thermal insulation material is poor in fire resistance rating and poor in oxidation resistance, and the thermal conductivity of the foaming material is reduced. The density of the material is 0.139 to 0.160 g/cm<3>, the compressive strength is 0.3 to 0.6 MPa, the tear strength is 4.3 to 4.6 MPa, the thermal conductivity is 0.042 to 0.051 W/(m.K), and the water absorption rate is 3 to 6 percent. The preparation method comprises the following steps: combining an acid-base two-step method with a high-pressure impregnation method and a vacuum impregnation method, and finally drying. The preparation method is simple in process and short in reaction period, can be recycled, is green and environment-friendly, and has a prospect of batch production.
本发明涉及一种硅基气凝胶‑发泡材料隔热复合材料的制备方法。所制备的材料具有三维纳米多孔网络结构，相比较于传统的外墙外保温材料以及单纯的发泡材料，该复合材料解决了传统隔热保温材料耐火等级差、抗氧化性差的问题，降低了发泡材料的热导率。且该材料的密度为0.139‑0.160g/cm3，抗压强度为0.3‑0.6MPa，抗撕裂强度为4.3‑4.6MPa，热导率为0.042‑0.051W/(m·K)，吸水率为3％‑6％。其制备方法是酸碱两步法结合高压浸渍法、真空浸渍法，最后进行干燥处理。该制备方法工艺简捷，反应周期短，可实现循环使用且绿色环保，具有批量生产的前景。
Preparation method of silicon-based aerogel-foam material heat insulation composite material
The invention relates to a preparation method of a silicon-based aerogel-foam material heat insulation composite material. The prepared material has a three-dimensional nano porous network structure, and compared with a traditional outer wall external thermal insulation material and a pure foaming material, the composite material solves the problems that a traditional thermal insulation material is poor in fire resistance rating and poor in oxidation resistance, and the thermal conductivity of the foaming material is reduced. The density of the material is 0.139 to 0.160 g/cm<3>, the compressive strength is 0.3 to 0.6 MPa, the tear strength is 4.3 to 4.6 MPa, the thermal conductivity is 0.042 to 0.051 W/(m.K), and the water absorption rate is 3 to 6 percent. The preparation method comprises the following steps: combining an acid-base two-step method with a high-pressure impregnation method and a vacuum impregnation method, and finally drying. The preparation method is simple in process and short in reaction period, can be recycled, is green and environment-friendly, and has a prospect of batch production.
本发明涉及一种硅基气凝胶‑发泡材料隔热复合材料的制备方法。所制备的材料具有三维纳米多孔网络结构，相比较于传统的外墙外保温材料以及单纯的发泡材料，该复合材料解决了传统隔热保温材料耐火等级差、抗氧化性差的问题，降低了发泡材料的热导率。且该材料的密度为0.139‑0.160g/cm3，抗压强度为0.3‑0.6MPa，抗撕裂强度为4.3‑4.6MPa，热导率为0.042‑0.051W/(m·K)，吸水率为3％‑6％。其制备方法是酸碱两步法结合高压浸渍法、真空浸渍法，最后进行干燥处理。该制备方法工艺简捷，反应周期短，可实现循环使用且绿色环保，具有批量生产的前景。
Preparation method of silicon-based aerogel-foam material heat insulation composite material
一种硅基气凝胶-发泡材料隔热复合材料的制备方法
CUI SHENG (Autor:in) / SONG ZIHAO (Autor:in) / ZHAO YIFAN (Autor:in) / WANG XUE (Autor:in) / LIU WEI (Autor:in) / WANG RONGJI (Autor:in)
22.06.2021
Patent
Elektronische Ressource
Chinesisch
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