二氧化硅气凝胶原位填充聚酰亚胺泡沫的结构及隔热性能研究OA北大核心CSTPCD
Study on the Structure and Thermal Insulation Properties of Polyimide Foams In-situ Filled With Silica Aerogels
以超轻质开孔柔性聚酰亚胺泡沫为基体,采用溶胶凝胶工艺制备了一系列二氧化硅气凝胶原位填充的聚酰亚胺复合泡沫.复合泡沫密度10~100 kg/m3可调,厚度1~400 mm可调,最大宏观尺寸可达1 m×1 m.对其泡孔结构、隔热性能、热性能进行了系统表征,分析了二氧化硅气凝胶原位填充聚酰亚胺泡沫的隔热机理.结果表明:二氧化硅气凝胶的引入,可有效降低复合泡沫室温热导率,提高其隔热性能;随着二氧化硅气凝胶含量的增加,聚酰亚胺复合泡沫的热导率由38.8 m…查看全部>>
A series of silica aerogel in-situ filled composite foams were prepared by sol-gel process using ultra-light open-cell flexible polyimide foam as matrix.The density of composite foam was adjustable from 10 kg/m3 to 100 kg/m3,the thickness was adjustable from 1 mm to 400 mm,and the maximum macro size could reach 1 m×1 m.The cell structure,thermal insulation performance and thermal performance were systematically characterized,and the thermal insulation mechan…查看全部>>
胡子扬;马晶晶;赵一搏;滕冲;赵建设
航天材料及工艺研究所,北京 100076航天材料及工艺研究所,北京 100076航天材料及工艺研究所,北京 100076航天材料及工艺研究所,北京 100076航天材料及工艺研究所,北京 100076
化学工程
聚酰亚胺泡沫泡孔结构二氧化硅气凝胶隔热性能
Polyimide foamCell structureSilica aerogelThermal insulation performance
《宇航材料工艺》 2024 (2)
82-88,7
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