E3S Web Conf.
Volume 213, 20202nd International Conference on Applied Chemistry and Industrial Catalysis (ACIC 2020)
|Number of page(s)||5|
|Section||Industrial Catalysis and Chemical Substance R&D and Application|
|Published online||01 December 2020|
Fabrication of redispersible silica nanoparticles by a facile one-step one-pot approach
School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
2 Shenzhen Academy of Aerospace Technology, Shenzhen 518057, China
3 School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China
4 Guangdong Advanced Polymer Composite Engineering Technology Research Center, Shenzhen 518057, China
In this study, special redispersible silica nanoparticles (SNP) was synthesized by a facile one-step one-pot approach. The synthesized amorphous SNP had a spherical and uniform particle morphology with a diameter of 30 nm and exhibited high monodispersity. The characteristics of the particles were investigated by fourier transform infrared spectroscopy and thermogravimetric analysis. The results revealed that there were a large number of methyl groups grafted on the surface of the SNP, and the organic materials content in the as-synthesized SNP was approximately 10%. After a simple ultrasonic process, the SNP solid powder showed excellent stable and transparent redispersion in various organic solvents. In addition, the results revealed that the different polarities of the solvents had a significant effect on the visible light transparency of the SNP redispersion. SNP showed the best redispersion performance in N-methyl-pyrrolidone, exhibiting a transmittance of more than 80% at 600 nm at a high concentration of 25 wt%. The synthesis process developed in this study is simple, inexpensive, and can be used in the industrial application of SNP.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.