Preparation of Fluoroalkyl-containing Silica Nanoparticles and Its Waterproofing Application on Concrete
- 10.2991/icmmbe-16.2016.109How to use a DOI?
- Fluorine-containing organosilane; Hydrophobicity; Water-repellent Agent; Nanoparticles
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.
- © 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/).
Cite this article
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 -