Three-dimensional core-shell superstructures: Mechanically strong aerogels

被引：258
作者：
Leventis, Nicholas [1 ]
机构：
[1] Univ Missouri, Dept Chem, Rolla, MO 65409 USA
来源：
ACCOUNTS OF CHEMICAL RESEARCH | 2007年 / 40卷 / 09期
关键词：
D O I：
10.1021/ar600033s
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Nanocasting conformal polymer coatings on preformed three-dimensional assemblies of nanoparticles, macroscopically classified as aerogels, reinforces the interparticle necks and increases the strength of the bulk material dramatically. For example, specific compressive strengths are reported to be higher than those for mild steel and aluminum, while the ability to store energy may surpass that of armor grade ceramics. Specific chemistries have been developed for cross-linking skeletal nanoparticles with polyureas and polyurethanes, epoxies, and polystyrene, while the technology has been demonstrated with 30 different nanoparticle networks in addition to silica.
引用
收藏
页码：874 / 884
页数：11
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