大连工业大学学报2025，Vol.44Issue(5)：320-324,5.DOI:10.19670/j.cnki.dlgydxxb.2025.0502
刚性隔热瓦复合气凝胶的制备与性能
Preparation and properties of rigid thermal insulation tile composite aerogel
摘要
Abstract
Rigid thermal insulation tiles were prepared using quartz fibers,alumina fiber and silica sol as raw materials.SiO2 sol was prepared with methyltrimethoxysilane and silica sol as mixed silicon sources.The rigid thermal insulation tile was immersed in the sol via vacuum siphonage,forming gel 2-4 h.The rigid thermal insulation tile composite aerogel was finally obtained through aging,solvent replacement and drying.The microstructure,mechanical properties and thermal insulation properties of the material were characterized.Results showed that the thermal conductivity of the prepared rigid thermal insulation tile was approximately 0.097 7 W/(m·K),which of the composite aerogel was approximately 0.077 3 W/(m·K).The compressive strengths of the composite aerogel sample at relative deformation of 10％and 20％are 0.61 and 0.75 MPa,respectively,showing good mechanical and thermal insulation properties.关键词
刚性隔热瓦/复合气凝胶/混合硅源/溶胶-凝胶法/真空虹吸/常压干燥Key words
rigid heat insulation tile/composite aerogel/mixed silicon source/sol-gel method/vacu-um siphon/atmospheric drying分类
通用工业技术引用本文复制引用
李红彬,崔步鑫,周兴,侯振华,郝洪顺..刚性隔热瓦复合气凝胶的制备与性能[J].大连工业大学学报,2025,44(5):320-324,5.基金项目
辽宁省教育厅科学研究项目(J2020049). （J2020049）
