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Fluoroalkylsilane versus Alkylsilane as Hydrophobic Agents for Silica and Silicates
Joint Authors
Ciesielczyk, Filip
Nowacka, Magdalena
Jesionowski, Teofil
Ambrożewicz, Damian
Karasiewicz, Joanna
Piasecki, Adam
Maciejewski, Hieronim
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Hydrophobic powders were obtained via surface modification of silica or magnesium silicate with selected silanes.
A modified precipitation method, carried out in an emulsion system, was used for monodisperse silica synthesis, while magnesium silicate was precipitated in a traditional water system.
Functionalization of the obtained inorganic supports was performed with selected alkylsilanes: one newly synthesized, 3-(2,2,3,3,4,4,5,5-octafluoropentyloxy)propyltriethoxysilane (OPF), and two commercial, octadecylsilane (ODS) and octyltriethoxysilane C14H32O3Si (OCS), in amounts of 3, 5, or 10 weight parts by mass of SiO2.
It was determined how the chemical modification of the silica or magnesium silicate surface affected its physicochemical properties.
The dispersive characteristics of both unmodified and functionalized silica-based systems were evaluated.
The morphology and microstructure of the samples obtained were analyzed using scanning electron microscopy.
The parameters of porous structure of the prepared systems were evaluated on the basis of BET equation as well as nitrogen adsorption/desorption isotherms.
Wettability tests as well as elemental analysis of the obtained inorganic oxide hybrids were also performed.
In order to verify the effectiveness of silica and magnesium silicate surface functionalization with selected silanes, FTIR spectra were investigated.
The resulting experimental data allowed calculation of the degree of coverage of the silica-based systems with modifying agents.
American Psychological Association (APA)
Ambrożewicz, Damian& Ciesielczyk, Filip& Nowacka, Magdalena& Karasiewicz, Joanna& Piasecki, Adam& Maciejewski, Hieronim…[et al.]. 2013. Fluoroalkylsilane versus Alkylsilane as Hydrophobic Agents for Silica and Silicates. Journal of Nanomaterials،Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-1031476
Modern Language Association (MLA)
Ambrożewicz, Damian…[et al.]. Fluoroalkylsilane versus Alkylsilane as Hydrophobic Agents for Silica and Silicates. Journal of Nanomaterials No. 2013 (2013), pp.1-13.
https://search.emarefa.net/detail/BIM-1031476
American Medical Association (AMA)
Ambrożewicz, Damian& Ciesielczyk, Filip& Nowacka, Magdalena& Karasiewicz, Joanna& Piasecki, Adam& Maciejewski, Hieronim…[et al.]. Fluoroalkylsilane versus Alkylsilane as Hydrophobic Agents for Silica and Silicates. Journal of Nanomaterials. 2013. Vol. 2013, no. 2013, pp.1-13.
https://search.emarefa.net/detail/BIM-1031476
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1031476