Preparation of Fluoroalkyl-containing Silica Nanoparticles and Its Waterproofing Application on Concrete

DOI

10.2991/icmmbe-16.2016.109How to use a DOI?

Keywords

Fluorine-containing organosilane; Hydrophobicity; Water-repellent Agent; Nanoparticles

Abstract

Fluoroalkyl-containing silica nanoparticles were prepared and characterized by a combination of IR and TEM analysis. The obtained silica nanoparticles with an average diameter 40 nm were coated onto concrete. Surface properties of the coated concrete were characterized by water contact angle (WCA) and X-ray photoelectron spectroscopy (XPS). The fluoroalkyl groups migrated preferentially towards air-film interface to generate a hydrophobic surface with a WCA of 140.3° and the ratio of absorbing water was 5.6%. These results demonstrated that the fluoroalkyl-containing nanomaterials could be used as water-repellent surface-treating agent for concrete and had excellent waterproofing performance.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhigang Zhu
AU  - Lisong Hu
AU  - Qingzhong Guo
PY  - 2016/09
DA  - 2016/09
TI  - Preparation of Fluoroalkyl-containing Silica Nanoparticles and Its Waterproofing Application on Concrete
BT  - Proceedings of the6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016)
PB  - Atlantis Press
SP  - 586
EP  - 589
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmbe-16.2016.109
DO  - 10.2991/icmmbe-16.2016.109
ID  - Zhu2016/09
ER  -