Preparation of the methyltriethoxysilane based aerogel monolith with an ultra-low density and excellent mechanical properties by ambient pressure drying

CNF–silica composite aerogels with reinforced mechanical properties were prepared under an ambient pressure drying method and optimized by a response surface methodology.

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Processing of low-density silica gel by critical point drying or ambient pressure drying

Journal of Non-Crystalline Solids ◽

10.1016/s0022-3093(01)00485-9 ◽

2001 ◽

Vol 283 (1-3) ◽

pp. 11-17 ◽

Cited By ~ 42

Author(s):

Valerie D Land ◽

Thomas M Harris ◽

Dale C Teeters

Keyword(s):

Critical Point ◽

Silica Gel ◽

Ambient Pressure ◽

Ambient Pressure Drying ◽

Low Density ◽

Critical Point Drying

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Production of low-density sodium silicate-based hydrophobic silica aerogel beads by a novel fast gelation process and ambient pressure drying process

Solid State Sciences ◽

10.1016/j.solidstatesciences.2010.01.032 ◽

2010 ◽

Vol 12 (5) ◽

pp. 911-918 ◽

Cited By ~ 88

Author(s):

Pradip B. Sarawade ◽

Jong-Kil Kim ◽

Askwar Hilonga ◽

Hee Taik Kim

Keyword(s):

Sodium Silicate ◽

Silica Aerogel ◽

Ambient Pressure ◽

Ambient Pressure Drying ◽

Low Density ◽

Drying Process ◽

Gelation Process ◽

Hydrophobic Silica

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Preparation Of Low-Density Xerogels At Ambient Pressure For Low K Dielectrics

MRS Proceedings ◽

10.1557/proc-381-261 ◽

1995 ◽

Vol 381 ◽

Cited By ~ 50

Author(s):

D. M. Smith ◽

J. Anderson ◽

C. C. Cho ◽

G. P. Johnston ◽

S. P. Jeng

Keyword(s):

Dielectric Constant ◽

Ambient Pressure ◽

Supercritical Drying ◽

Temperature Limit ◽

Ambient Pressure Drying ◽

Low Dielectric Constant ◽

Low Density ◽

Silica Xerogels ◽

High Temperature Limit ◽

Low Dielectric

AbstractLow density silica xerogels have many properties which suggest their use as a low dielectric constant material. Recent process improvements to control capillary pressure and strength by employing aging and pore chemistry modification, such that shrinkage is minimal during ambient pressure drying, have eliminated the need for supercritical drying. Although xerogels offer advantages for intermetal dielectric (IMD) applications because of their low dielectric constant (<2), high temperature limit, and compatibility with existing microelectronics precursors and processes, they suffer from unanswered questions. These include: 1) are all pores smaller than microelectronics features, 2) what are their mechanical properties (for processing and particle generation), and 3) what is their thermal stability. We have produced bulk xerogels under similar conditions to those used for films and studied the effect of density on the pore size distribution and bulk modulus.

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Study on Preparation of Mesoporous Silica Aerogels with Low Density and High Properties via Ambient Pressure Drying

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.148-149.1491 ◽

2010 ◽

Vol 148-149 ◽

pp. 1491-1496

Author(s):

Gang Qiang Geng ◽

Wei Tao Bi ◽

Yu Zhang ◽

Deng Ke Sun

Keyword(s):

Mesoporous Silica ◽

Ambient Pressure ◽

Sol Gel ◽

Silica Aerogels ◽

Ambient Pressure Drying ◽

Ethanol Solution ◽

Low Density ◽

Micro Structure ◽

Gel Time

The SiO2 aerogels of low density was fabricated by ion exchange and sol-gel method on the basis of sodium silicate. The effect of pH, aging，addition of DCCA and annealed temperature on the gel time, aerogel density, porosity and the micro-structure was systemly studied. The results showed that when the pH is 5, aging was 30%Vol .of TEOS/ethanol solution ,the addition of DCCA was 1.5ml, the gel system was annealed at 50 for 84 h, 60 for 72h, the best quality of silica aerogels with low density (0.14g/cm3), higher specific surface(610.643 m2/g) and pore size of 20~40 nm can be obtained.

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Preparation of low-density carbon aerogels by ambient pressure drying

Carbon ◽

10.1016/j.carbon.2004.04.003 ◽

2004 ◽

Vol 42 (10) ◽

pp. 2033-2039 ◽

Cited By ~ 160

Author(s):

Dingcai Wu ◽

Ruowen Fu ◽

Shuting Zhang ◽

Mildred S Dresselhaus ◽

Gene Dresselhaus

Keyword(s):

Ambient Pressure ◽

Ambient Pressure Drying ◽

Carbon Aerogels ◽

Low Density

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Flame retardant polyurethane sponge/MTMS aerogel composites with improved mechanical properties under ambient pressure drying

Journal of Nanoparticle Research ◽

10.1007/s11051-020-04958-9 ◽

2020 ◽

Vol 22 (8) ◽

Cited By ~ 1

Author(s):

Xiaoxu Wu ◽

Siqi Huang ◽

Yan Zhang ◽

Long Shi ◽

Yan Luo ◽

...

Keyword(s):

Mechanical Properties ◽

Flame Retardant ◽

Ambient Pressure ◽

Ambient Pressure Drying ◽

Polyurethane Sponge

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Characterization, thermal and mechanical properties and hydrophobicity of resorcinol-furfural/silicone hybrid aerogels synthesized by ambient-pressure drying

RSC Advances ◽

10.1039/c6ra09557g ◽

2016 ◽

Vol 6 (79) ◽

pp. 75793-75804 ◽

Cited By ~ 10

Author(s):

Haiming Cheng ◽

Huafei Xue ◽

Changqing Hong ◽

Xinghong Zhang

Keyword(s):

Mechanical Properties ◽

Ambient Pressure ◽

Ambient Pressure Drying ◽

Thermal And Mechanical Properties ◽

Thermal Mechanical Properties ◽

Hybrid Aerogels

In this work, a resorcinol-furfural/silicone hybrid aerogels is synthesized by ambient pressure drying with good thermal, mechanical properties and hydrophobicity.

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