A novel silica nanowire-silica composite aerogels dried at ambient pressure

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	A novel silica nanowire-silica composite aerogels dried at ambient pressure
	Xu, Gaojie; Tang, Xiaobing; Sun, Aihua; Chu, Chengyi; Yu, Mingli; Ma, Si; Cheng, Yuchuan; Guo, Jianjun
刊名	MATERIALS & DESIGN
	2017
卷号	115 页码:415-421
ISSN号	0264-1275
英文摘要	A novel silica nanowire-silica composite aerogels with excellent thermal insulation and mechanical properties was prepared by adding SiO2 nanowires as a secondary phase into the silica matrix and drying at ambient pressure. The SiO2 nanowires and silica aerogel matrix have outstanding compatibility and dispersibility because the components of nanowire and aerogel matrix all are silica, which contributes to the improvement of the mechanical property of the silica composite aerogels. The physical, mechanical and thermal properties of the SiO2 nanowires based composite silica aerogel are investigated and discussed in detail. The results indicate that the monolithic aerogels with high specific surface area, porosity and large pore volume. The thermal conductivity of the composite silica aerogels only increases gently (0.006 W.m(-1) K-1) as the addition of SiO2 nanowires rises from 0 wt% to 14 wt%, while their mechanical properties have been improved greatly. The SiO2 nanowires based composite silica aerogel would be widely used in the thermal insulation application because of its outstanding thermal insulation property. (C) 2016 Elsevier Ltd. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13995]
专题	2017专题
推荐引用方式 GB/T 7714	Xu, Gaojie,Tang, Xiaobing,Sun, Aihua,et al. A novel silica nanowire-silica composite aerogels dried at ambient pressure[J]. MATERIALS & DESIGN,2017,115:415-421.
APA	Xu, Gaojie.,Tang, Xiaobing.,Sun, Aihua.,Chu, Chengyi.,Yu, Mingli.,...&Guo, Jianjun.(2017).A novel silica nanowire-silica composite aerogels dried at ambient pressure.MATERIALS & DESIGN,115,415-421.
MLA	Xu, Gaojie,et al."A novel silica nanowire-silica composite aerogels dried at ambient pressure".MATERIALS & DESIGN 115(2017):415-421.