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.

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页码：874 / 884

页数：11

相关论文

共 42 条

[1] Polyimide-ceramic hybrid composites by the sol-gel route [J].

Ahmad, Z ;

Mark, JE .

CHEMISTRY OF MATERIALS, 2001, 13 (10) :3320-3330

[2]

Brinker C.J., 1990, SOL GEL SCI

[3] SOL-GEL TRANSITION IN SIMPLE SILICATES .2. [J].

BRINKER, CJ ;

KEEFER, KD ;

SCHAEFER, DW ;

ASSINK, RA ;

KAY, BD ;

ASHLEY, CS .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 63 (1-2) :45-59

[4] Flexible, low-density polymer crosslinked silica aerogels [J].

Capadona, Lynn A. ;

Meador, Mary Ann B. ;

Alunni, Antonella ;

Fabrizio, Eve F. ;

Vassilaras, Plousia ;

Leventis, Nicholas .

POLYMER, 2006, 47 (16) :5754-5761

[5] Structural development of silica gels aged in TEOS [J].

Einarsrud, MA ;

Kirkedelen, MB ;

Nilsen, E ;

Mortensen, K ;

Samseth, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 231 (1-2) :10-16

[6] MUTUALLY INTERPENETRATING INORGANIC ORGANIC NETWORKS - NEW ROUTES INTO NONSHRINKING SOL-GEL COMPOSITE-MATERIALS [J].

ELLSWORTH, MW ;

NOVAK, BM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (07) :2756-2758

[7] New sol-gel synthetic route to transition and main-group metal oxide aerogels using inorganic salt precursors [J].

Gash, AE ;

Tillotson, TM ;

Satcher, JH ;

Hrubesh, LW ;

Simpson, RL .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2001, 285 (1-3) :22-28

[8]

Gibson L J., 1997, CELLULAR SOLIDS STRU, DOI [10.1017/CBO9781139878326, DOI 10.1017/CBO9781139878326]

[9] ULTRASONIC VELOCITY-MEASUREMENTS IN SILICA, CARBON AND ORGANIC AEROGELS [J].

GROSS, J ;

FRICKE, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 145 (1-3) :217-222

[10] THERMAL AND TEMPORAL AGING OF TMOS-BASED AEROGEL PRECURSORS IN WATER [J].

HAEREID, S ;

ANDERSON, J ;

EINARSRUD, MA ;

HUA, DW ;

SMITH, DM .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 185 (03) :221-226

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