| Full text | |
| Author(s): |
de Castro, Lucas D. C.
[1]
;
Larocca, Nelson M.
[2]
;
Oliveira, Jr., Osvaldo N.
[1]
;
Pessan, Luiz A.
[2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Sao Carlos Inst Phys, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Grad Program Mat Sci & Engn, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | ACS OMEGA; DEC 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
We report on the preparation of SiO2-based nanoparticles readily available for superhydrophobic applications. In contrast to usual approaches, our process is substrate-free and based on electrostatic adsorption of small SiO2 particles onto large SiO2 cores with the aid of poly(diallyldimethylammonium chloride) followed by calcination and chemical modification with trichlorododecylsilane. The as-prepared nanoparticles are in powder form and exhibit stable superhydrophobic behavior at room temperature because of the unique combination between the hierarchical raspberry-like structure and low surface energy. If properly stored, the nanoparticles retain their functional properties for several months. (AU) | |
| FAPESP's process: | 20/02938-0 - Coloured patterns based on bioinspired photonic crystals for mechanocromic applications |
| Grantee: | Lucas Daniel Chiba de Castro |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis |
| Grantee: | Osvaldo Novais de Oliveira Junior |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/20052-0 - Development of bioinspired superhydrophobic coatings via layer-by-layer deposition |
| Grantee: | Lucas Daniel Chiba de Castro |
| Support Opportunities: | Scholarships in Brazil - Doctorate |