成功制备了一种新型多层隔热材料,其间隔层基于氧化铝纤维制备,并由溶胶-凝胶法植入二氧化硅气凝胶颗粒.在高真空环境下(10-3 Pa),新型多层隔热材料当量热导率比传统材料低21.8％,同时重量比传统材料降低了67.2％.此外,这种新型多层隔热材料在1200 K的高温以及低真空条件下(100 Pa)也表现出良好的隔热性能.
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