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常压干燥法制备超疏水二氧化硅气凝胶毛毡 被引量:3

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摘要 通过溶胶凝胶以及表面改性的方法 ,将二氧化硅(Si O2)溶胶与硅酸铝纤维复合,常压下制备超疏水Si O2气凝胶毛毡。通过扫描电子显微镜表征分析Si O2气凝胶毛毡表面形貌和内部结构,结果表明,多孔网络结构的Si O2气凝胶分散在硅酸铝基质中,对纤维内部的空隙有效填充。复合后气凝胶毛毡的接触角为:144.8°,显示出良好的超疏水性能,并且复合后毛毡的导热系数从0.059W/m·K下降到0.030W/m·K,表明该气凝胶毛毡具有良好的保温隔热特性。
作者 秦慧元
出处 《科技传播》 2016年第9期209-212,共4页 Public Communication of Science & Technology
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参考文献16

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