Issue 37, 2013
From the journal:

Journal of Materials Chemistry A

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

Meng Wang,†a   Qiqi Zeng,†b   Bin Zhao*b  and  Dannong He*ab  

* Corresponding authors

a School of Materials Science and Engineering, Shanghai JiaoTong University, 800 Dongchuan Road, Min Hang District, Shanghai CA-200240, P.R. China
E-mail: dannonghe@126.com
Fax: +86-21-34291125
Tel: +86-21-34291286

b National Engineering Research Center for Nanotechnology, 28 East Jiangchuan Road, Min Hang District, Shanghai CA-200241, P.R. China
E-mail: zhaobinwily@hotmail.com

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.

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

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Article information

DOI
https://doi.org/10.1039/C3TA12024D
Article type
Paper
Submitted
23 May 2013
Accepted
26 Jul 2013
First published
29 Jul 2013

J. Mater. Chem. A, 2013,1, 11465-11472

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

M. Wang, Q. Zeng, B. Zhao and D. He, J. Mater. Chem. A, 2013, 1, 11465 DOI: 10.1039/C3TA12024D

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