Application of tailored silica microspheres in coatings: synthesis, characterization, thermal and hydrophobic properties

Literature Information

Publication Date 2013-07-29
DOI 10.1039/C3TA12024D
Impact Factor 12.732
Authors

Meng Wang, Qiqi Zeng, Bin Zhao


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Abstract

Tailored silica microspheres were synthesized using CTAB as a soft template, e.g. solid, mesoporous silica microspheres, solid silica core/mesoporous silica shell (sSiO2@mSiO2) microspheres and hollow silica microspheres. The prepared samples were characterized by SEM, TEM, XRD, and BET. The mechanism of morphological evolution was also proposed based on the experimental results, which reveals the formation processes of solid, mesoporous silica microspheres, solid silica core/mesoporous silica shell (sSiO2@mSiO2) microspheres and hollow silica microspheres. Then silica/silicon resin coatings consisting of the four representative silica particles were prepared. The corresponding FT-IR, UV-Vis spectra and surface water wettability test showed better performance for coatings comprised of the other three silica particles than that of solid SiO2 microspheres. Coatings comprised of mesoporous SiO2 had the best performance of heat insulation and heat preservation and hydrophobic property. The top-view and cross-sectional SEM images and the AFM images of the coatings were also analyzed to explain the relationship between factors such as surface morphology, film thickness, surface roughness of the coating and its related properties.

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Source Journal

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
Self-citation Rate: 4.7%
Articles per Year: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

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