silica aerogel


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silica aerogel

[′sil·ə·kə ′er·ə‚jel]
(materials)
A colloidal silica powder whose grains have small pores; used as a low-temperature insulator.
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These facts indicate that modified silica aerogel with DCPEPT can be used as an inexpensive, efficient, and environmentally safe adsorbent for removal of Hg(II) from aqueous solutions.
Similarly to silica aerogel, HGM have a low density, a low dielectric constant, and excellent sound and thermal insulation properties.
17] extracted the high purity silica aerogel from coal gangue by acid leaching with a yield of 68.
Figure 3 shows the SEM images of a 5 PPI metal foam sample before and after coating with silica aerogel.
Caption: Sometimes called "frozen smoke," silica aerogel can protect skin from an open flame because its airy structure makes it a great insulator.
Recognizing the advantages of a high performance insulative coating, some advanced coatings manufacturers are exploring the use of silica aerogel as an additive to paint to achieve significantly lower thermal conductivities.
2000) have prepared silica aerogels doped with PbS nanocrystals by impregnating a preformed silica aerogel with an aqueous solution of PbS colloids, followed by annealing forming nanocomposites with nanocrystal diameters of ~ 15 nm.
A eficacia de terra de diatomacea coberta com silica aerogel, em trigo, testada contra tres especies de Coleoptera, aumentou na seguinte ordem: Rhyzopertha dominica em equivalencia ao T.
It is disappointing that the authors do not extend their treatment into giving guidance and recommendations for design (which they perhaps might have felt was beyond their self-set brief), and their reference to new technologies is scant, and sometimes wrong (for example in relation to silica aerogel and electrochromism).
BOSTON -- Cabot Corporation (NYSE: CBT) has developed the Aeroclad(TM)blanket, a flexible high-temperature insulation material formed by integrating Cabot's silica aerogel within a non-woven, inorganic fiber batting.
The common material for ionogels is silica aerogel but carbon materials can also be successfully used.
and its partners are fabricating a windowpane that incorporates a silica aerogel to provide thermal insulation and condensation resistance.