Hydrophilic and Hydrophobic Silica – Based Nanocomposites of Chemically Recyclable Thermoset

2021 ◽  
Author(s):  
Eduarda C. Souza ◽  
Roger H. Bello ◽  
Luiz A. F. Coelho
Keyword(s):  
Hydrophobic Silica

Improving the flame retardance of hydrophobic silica aerogels through a facile post-doping of magnesium hydroxide

2021 ◽  
Author(s):  
Yan Zhang ◽  
Liling Wu ◽  
Xi Deng ◽  
Yunmeng Deng ◽  
Xiaoxu Wu ◽  
...  
Keyword(s):  
Magnesium Hydroxide ◽  
Silica Aerogels ◽  
Flame Retardance ◽  
Hydrophobic Silica

Modeling the solid/liquid interfacial properties of methylimidazole confined in hydrophobic silica nanopores

2021 ◽  
Vol 231 ◽  
pp. 116333
Author(s):  
Weizhong Zheng ◽  
Weizhen Sun ◽  
Ling Zhao ◽  
Feng Qian
Keyword(s):  
Interfacial Properties ◽  
Hydrophobic Silica ◽  
Solid Liquid

scholarly journals Transport Properties and Local Structure of an Imidazole/Protic Ionic Liquid Mixture Confined in the Mesopores of Hydrophobic Silica

2021 ◽  
Vol 125 (4) ◽  
pp. 2607-2618
Author(s):  
Szilvia Vavra ◽  
Khalid Elamin ◽  
Lars Evenäs ◽  
Anna Martinelli
Keyword(s):  
Ionic Liquid ◽  
Transport Properties ◽  
Local Structure ◽  
Liquid Mixture ◽  
Protic Ionic Liquid ◽  
Hydrophobic Silica

scholarly journals Effect of Hydrophobic Silica Nanochannel Structure on the Running Speed of a Colloidal Damper

2021 ◽  
Vol 11 (15) ◽  
pp. 6808
Author(s):  
Gengbiao Chen ◽  
Zhiwen Liu
Keyword(s):  
Fractal Dimension ◽  
Silica Gel ◽  
Fractal Theory ◽  
Percolation Model ◽  
Silica Gels ◽  
Practical Significance ◽  
Running Speed ◽  
Fractal Percolation ◽  
Micropore Structure ◽  
Hydrophobic Silica

A colloidal damper (CD) can dissipate a significant amount of vibrations and impact energy owing to the interface power that is generated when it is used. It is of great practical significance to study the influence of the nanochannel structure of hydrophobic silica gel in the CD damping medium on the running speed of the CD. The fractal theory was applied to observe the characteristics of the micropore structure of the hydrophobic silica gel by scanning electron microscopy (SEM), the primary particles were selected to carry out fractal analysis, and the two-dimensional fractal dimension of the pore area and the tortuous fractal dimension of the hydrophobic silica gel pore structure were calculated. The fractal percolation model of water in hydrophobic silica nanochannels based on the slip theory could thus be obtained. This model revealed the relationship between the micropore structure parameters of the silica gel and the running speed of the CD. The CD running speed increases with the addition of grafted molecules and the reduction in pore size of the silica gel particles. Continuous loading velocity testing of the CD loaded with hydrophobic silica gels with different pore structures was conducted. By comparing the experimental results with the calculation results of the fractal percolation model, it was determined that the fractal percolation model can better characterize the change trend of the CD running velocity for the first loading, but the fractal dimension was changed from the second loading, caused by the small amount of water retained in the nanochannel, leading to the failure of fractal characterization.

Preparation of the hydrophilic/hydrophobic silica particles

2002 ◽  
Vol 207 (1-3) ◽  
pp. 49-58 ◽  
Author(s):  
Teofil Jesionowski ◽  
Andrzej Krysztafkiewicz
Keyword(s):  
Silica Particles ◽  
Hydrophobic Silica

A New Approach for the Fabrication of Hydrophobic Silica Coatings on Glass Using Sol–Gel Method

2015 ◽  
Vol 45 (12) ◽  
pp. 1769-1772 ◽  
Author(s):  
Leila Shams Solaree ◽  
Ahmad Monshi ◽  
Hamid Ghayour
Keyword(s):  
Sol Gel ◽  
New Approach ◽  
Gel Method ◽  
Sol Gel Method ◽  
Silica Coatings ◽  
Hydrophobic Silica

scholarly journals Synthesis and Characterization of Hydrophobic Silica Thin Layer Derived from Methyltrimethoxysilane (MTMS)

2018 ◽  
Vol 299 ◽  
pp. 012041 ◽  
Author(s):  
Adi Darmawan ◽  
Riyadini Utari ◽  
Riza Eka Saputra ◽  
Suhartana ◽  
Yayuk Astuti
Keyword(s):  
Thin Layer ◽  
Synthesis And Characterization ◽  
Hydrophobic Silica

Three-dimensional optofluidic waveguides in hydrophobic silica aerogels via supercritical fluid processing

2013 ◽  
Vol 73 ◽  
pp. 28-33 ◽  
Author(s):  
Gamze Eris ◽  
Deniz Sanli ◽  
Zeynep Ulker ◽  
Selmi Erim Bozbag ◽  
Alexandr Jonás ◽  
...  
Keyword(s):  
Supercritical Fluid ◽  
Three Dimensional ◽  
Silica Aerogels ◽  
Hydrophobic Silica ◽  
Optofluidic Waveguides ◽  
Supercritical Fluid Processing

Contact Angle Assessment of Hydrophobic Silica Nanoparticles Related to the Mechanisms of Dry Water Formation

Langmuir ◽  
2010 ◽  
Vol 26 (4) ◽  
pp. 2333-2338 ◽  
Author(s):  
Laurent Forny ◽  
Khashayar Saleh ◽  
Renaud Denoyel ◽  
Isabelle Pezron
Keyword(s):  
Contact Angle ◽  
Silica Nanoparticles ◽  
Hydrophobic Silica ◽  
Water Formation ◽  
Dry Water
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