Superhydrophobic silica aerogels by fluorination at the gel stage

2004 ◽  
pp. 2316-2317 ◽  
Author(s):  
Anna Roig ◽  
Elies Molins ◽  
Elisenda Rodríguez ◽  
Sandra Martínez ◽  
Marcial Moreno-Mañas ◽  
...  
Keyword(s):  
Silica Aerogels ◽  
Superhydrophobic Silica

scholarly journals Eco-friendly approach for preparation of water-based superhydrophobic silica aerogels via ambient pressure drying

2021 ◽  
Vol 8 (1) ◽  
pp. 015021
Author(s):  
Xiaoling Yuan ◽  
Lihui Xu ◽  
Hong Pan ◽  
Yong Shen ◽  
Liming Wang ◽  
...  
Keyword(s):  
Ambient Pressure ◽  
Silica Aerogels ◽  
Ambient Pressure Drying ◽  
Water Based ◽  
Superhydrophobic Silica

scholarly journals Superhydrophobic silica aerogels reinforced with polyacrylonitrile fibers for adsorbing oil from water and oil mixtures

RSC Advances ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 4039-4045 ◽  
Author(s):  
Mingjia Shi ◽  
Cunguo Tang ◽  
Xudong Yang ◽  
Junling Zhou ◽  
Fei Jia ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silica Aerogels ◽  
Simple Method ◽  
Oil Mixtures ◽  
Superhydrophobic Silica

Aerogels are modified by a simple method of hydrophobicity and mechanical properties simultaneously.

A Novel Route for Preparation of Transparent and Superhydrophobic Silica Aerogels

2009 ◽  
Vol 1234 ◽  
Author(s):  
Guo-you Wu ◽  
Xuan Cheng ◽  
Yu-xi Yu ◽  
Ying Zhang
Keyword(s):  
Surface Modification ◽  
Ambient Pressure ◽  
Sol Gel ◽  
Three Dimensional ◽  
Silica Aerogels ◽  
Ambient Pressure Drying ◽  
Nanoporous Structure ◽  
Surface Areas ◽  
Superhydrophobic Silica ◽  
Dta Curve

AbstractSilica aerogels were synthesized via sol-gel processing followed by a two-step surface modification and ambient pressure drying, using methyltrimethoxysilane (MTMS) and trimethylchlorosilane (TMCS)/ethanol/n-hexane as surface modification agents. The transparent silica aerogels possessed the porosities, densities and specific surface areas in the range of 87.7–92.3%, 0.27–0.17 g·cm-3 and 852–1005 m2·g-1, respectively. The SEM and HRTEM analysis revealed the three-dimensional nanoporous structure of the silica aerogels. The presence of –CH3 functional groups on the surface of silica particles as indicated by the FTIR spectra was further confirmed by two visible exothermic peaks at 310 and 450–500 °C from the DTA curve. In addition, the silica aerogels were superhydrophobic with the contact angle as high as 160°.

Studies on rheological properties of methyltriethoxysilane (MTES) based flexible superhydrophobic silica aerogels

2009 ◽  
Vol 117 (3) ◽  
pp. 617-626 ◽  
Author(s):  
Digambar Y. Nadargi ◽  
Sanjay S. Latthe ◽  
Hiroshi Hirashima ◽  
A. Venkateswara Rao
Keyword(s):  
Rheological Properties ◽  
Silica Aerogels ◽  
Superhydrophobic Silica

A novel preparation of superhydrophobic silica aerogels via the combustion drying method

2021 ◽  
Author(s):  
Zhonghao Li ◽  
Runxun Liao ◽  
Runping Jia ◽  
Yufeng Liu ◽  
Xiaowei Xu ◽  
...  
Keyword(s):  
Silica Aerogels ◽  
Drying Method ◽  
Superhydrophobic Silica

Absorption and desorption of organic liquids in elastic superhydrophobic silica aerogels

2007 ◽  
Vol 305 (1) ◽  
pp. 124-132 ◽  
Author(s):  
A. Venkateswara Rao ◽  
Nagaraja D. Hegde ◽  
Hiroshi Hirashima
Keyword(s):  
Silica Aerogels ◽  
Organic Liquids ◽  
Superhydrophobic Silica

Superhydrophobic silica aerogels based on methyltrimethoxysilane precursor

2003 ◽  
Vol 330 (1-3) ◽  
pp. 187-195 ◽  
Author(s):  
A. Venkateswara Rao ◽  
Manish M. Kulkarni ◽  
D.P. Amalnerkar ◽  
Tanay Seth
Keyword(s):  
Silica Aerogels ◽  
Superhydrophobic Silica
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