Results 21 to 30 of about 242,659 (303)
Applied Sciences, 2021 Silica aerogel possesses an ultra-low thermal conductivity by virtue of its nano-structure. Owing to the fragility of monolithic aerogel, the development and production of aerogel-based insulation materials involve the incorporation of granular aerogel ...
Fouad Ismail Ismail +6 more
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Streamlined life cycle assessment of transparent silica aerogel made by supercritical drying [PDF]
, 2012 This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2011 ElsevierWhen developing sustainable building fabric technologies, it is essential that the energy use and CO2 burden ...
Birks, T +4 more
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SANS study of hybrid silica aerogels under "in situ" uniaxial compression [PDF]
, 2008 We have modified the inorganic silica network of aerogels with polydimethylsiloxane (PDMS), a hydroxyl-terminated polymer, to obtain an organic modified silicate (ORMOSIL). Reactions were assisted by high-power ultrasounds.
Esquivias Fedriani, Luis María +5 more
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Dielectric Response of Silica Aerogels [PDF]
Defect and Diffusion Forum, 1987 The dielectric response of porous silica aerogel prepared by hypercritical drying of gels from hydrolysis of TMOS — Methanol solution have been measured between 1.6 K to 300 K and frequencies between 50 and 10 5 Hz. The ɛ' value of the porous gels is found practically constant between room temperature and 100K but smaller than of fused silica. A sharp
Da Silva, Adao A. +2 more
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Reinforced silica-carbon nanotube monolithic aerogels synthesised by rapid controlled gelation [PDF]
, 2018 This work introduces a new synthesis procedure for obtaining homogeneous silica hybrid aerogels with carbon nanotube contents up to 2.50 wt.%. The inclusion of nanotubes in the highly porous silica matrix was performed by a two-step sol–gel process ...
Díaz-Fraile, José A. +8 more
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Merging flexibility with superinsulation: Machinable, nanofibrous pullulan-silica aerogel composites
Materials & Design, 2018 Freeze-dried nanofibrous scaffolds are flexible, but typically have high thermal conductivities. Conversely, silica aerogel has an ultra-low thermal conductivity, but is brittle. Here, the impregnation of pullulan/PVA nanofiber scaffolds with hydrophobic
Shanyu Zhao +5 more
doaj +1 more source
Preparation of Fiber Reinforced Silica Aerogel Block [PDF]
MATEC Web of Conferences, 2021 Silica aerogels are lightweight, highly porous nanomaterial with extremely large internal surface area but fragile and brittleness. To enhance the applicability of aerogels, fiber reinforced silica aerogel insulation blocks are prepared by frothing ...
Zhai Shuning +6 more
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Frontiers in Materials, 2021 A new flexible thermal insulation sheet, a composite of silica aerogel with polypropylene (PP) foam, has been developed. Even though a large volume ratio of silica aerogel (97%) was included, the composite showed high flexibility. Thermal conductivity of
Satoshi Yoda +4 more
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Frontiers in Materials, 2021 A robust silica–polyimide (PI) aerogel blanket is designed and synthesized using the PI foam as the matrix and silica aerogel as the filler through an in situ method, where sol–gel transition of silica precursor occurs in pores of the PI foam, followed ...
Riyong Liu +5 more
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Experimental study on influence of aggregate gradation on properties of silica aerogel-glazed hollow beads composite insulation mortar [PDF]
E3S Web of Conferences, 2021 Taking the defects of narrow range of particle gradation of glazed hollow beads and low mechanical strength of silica aerogel into consideration, silica aerogel and glazed hollow bead have been mixed for the composite aggregate of insulation mortar. Some
Yiren Wang +3 more
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