The properties of silica aerogels hybridized with SiO2 nanoparticles by ambient pressure drying

Jung, In Keun; Gurav, Jyoti L.; Ha, Tae Jung; Choi, Sun Gyu; Baek, Seungsu; Park, Hyung Ho

doi:10.1016/j.ceramint.2011.04.060

Cited by 34 publications

(14 citation statements)

References 16 publications

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“…They have attracted widespread interest in recent years because of their unusual properties, of which silica aerogels are the most extensively characterized. Silica aerogels possess one of the lowest thermal conductivity in all solid materials, as well as many other exceptional properties, e.g., high porosity, low bulk density, large specific surface area, good optical transmission, unique refractive index, and many more (Ref [19][20][21][22][23][24]. Those attractive properties make them an excellent option for many potential applications in thermal insulation, medicine, optics, and acoustics (Ref [25][26][27][28].…”

Section: Introductionmentioning

confidence: 98%

Thermal Insulation Composite Prepared from Carbon Foam and Silica Aerogel Under Ambient Pressure

Liu

Shi

et al. 2015

J. of Materi Eng and Perform

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Carbon foam/silica aerogel composite as a promising thermal insulation material was prepared under ambient pressure successfully in the present work. Carbon foam was prepared by pretreatment, foaming, and carbonization process, while silica aerogel was synthesized by sol-gel method. The microstructure, morphology characteristics, compression strength, and thermal properties of composite were characterized by infrared spectroscopy, x-ray diffraction, scanning electron microscope, universal testing machine, and laser flash thermal detector, respectively. Results showed that silica aerogel was successfully synthesized in the surface foam cells of carbon foam due to the closed cell structure of carbon foam. Moreover, the compressive strength of the carbon foam was not affected by the silica aerogel in the cell structure of carbon foam, while its thermal insulation property at room temperature was improved.

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Section: Introductionmentioning

confidence: 98%

Thermal Insulation Composite Prepared from Carbon Foam and Silica Aerogel Under Ambient Pressure

Liu

Shi

et al. 2015

J. of Materi Eng and Perform

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“…PSF is a classical membrane material for the preparation of ultraltration, [21][22][23][24] nanoltration, 25,26 and matrix membranes [27][28][29] due to its outstanding properties of thermal stability, chemical resistance, high mechanical strength, and wide aperture adjustment range. 30 Hydrophobic SiO 2 nanoparticles have the features of small particle size, narrow particle size distribution, and large surface area, 31 which play an important role in making a rough and superhydrophobic surface. 15,[32][33][34] FEP resin has lower surface free energy due to its chemical compositions, which is usually used to prepare and modify for hydrophobic membrane.…”

Section: Introductionmentioning

confidence: 99%

Preparation of PSF/FEP mixed matrix membrane with super hydrophobic surface for efficient water-in-oil emulsion separation

Xiao

et al. 2018

RSC Adv.

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“…Drying under atmospheric conditions, it is a promising technique [41], which could be used on an industrial scale, as demonstrated in the verification process carried out on a prototype, large scale laboratory line for the production of aerogels.…”

Section: Recent Applications In Sol-gel Synthesismentioning

confidence: 99%

Sol-Gel-Derived Silicon-Containing Hybrids

Zielecka¹,

Bujnowska²,

Suwała³

et al. 2017

Recent Applications in Sol-Gel Synthesis

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Silicone-containing hybrid systems including functionalized and modified silica nanospheres as well as silica aerogels were synthesized using sol-gel process. The most important advantage of the developed silicon-containing hybrids lies in their high application potential, e.g. for the production of façade paints, polymer nanocomposites, highly efficient insulating materials and other high-tech products for construction industry. The possibility of precise steering of sol-gel process and synergism of very rich silicon compound chemistry allows to obtain materials with strategically designed architecture. Original methods of manufacturing following silicon-containing hybrids such as functionalized and non-functionalized silica nanospheres, silica nanospheres containing immobilized silver and/or copper nanoparticles and silica aerogels were developed. Homogeneous structural properties of synthesized materials were achieved due to carefully selected parameters of sol-gel process. The technology offers a possibility to control the grain size and uniformity of nanospheres by process parameters. The smallest nanosphere size is 10 nm and the largest 600 nm. The properties of aerogels obtained according to the original technology developed in the Industrial Chemistry Research Institute (ICRI) are extremely good and repetitive particularly taking into account their thermal conductivity. The main advantages of the developed aerogels are very good mechanical properties, very low dust formation and significantly decreased costs when compared to traditional silica aerogels.

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The properties of silica aerogels hybridized with SiO2 nanoparticles by ambient pressure drying

Cited by 34 publications

References 16 publications

Thermal Insulation Composite Prepared from Carbon Foam and Silica Aerogel Under Ambient Pressure

Thermal Insulation Composite Prepared from Carbon Foam and Silica Aerogel Under Ambient Pressure

Preparation of PSF/FEP mixed matrix membrane with super hydrophobic surface for efficient water-in-oil emulsion separation

Sol-Gel-Derived Silicon-Containing Hybrids

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