Nanocomposites fabrication by self-assembly method to modify macroscopic properties

2nd Colombian Congress of Electrochemistry; 2nd Symposium on Nanoscience and Nanotechnology

物理学;化学

Lopez-Barbosa, N.^1 ; Osma, J.F.^1

Universidad de Los Andes, Bogotá D.C., Colombia^1

关键词: Functionalized silica;    Macroscopic properties;    Modification of materials;    Multiple applications;    Polymeric nanocomposites;    Self-assembly fabrication;    Self-assembly method;    Synthesis parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/786/1/012003/pdf
DOI  :  10.1088/1742-6596/786/1/012003

来源: IOP

【 摘 要 】

Polymeric nanocomposites have been in the scope of scientists for the last decade due to their multiple applications and simple synthesis. Self-assembly fabrication can be performed through different methods such as layer-by-layer or the controlled growth of nanostructures on a surface. These methods allow fast elaboration of nanocomposites that can be readily integrated in sensors or films. The current work exposes the self-assembly of nanocomposites for the modification of material's macroscopic properties such as hydrophobicity and temperature's resistance on textiles. Hydrophobicity properties of cotton textiles were modified by the application of functionalized silica nanoparticles on their surfaces. Thermal resistance of cotton textiles was achieved by incorporating TiO2nanoparticles into the matrix, increasing the scope of their applications. Functionalization was attained by chloro-trimethyl-silane (CTS) and γ-amino(propyl) triethoxy silane (APTES) in organic and inorganic solvents. Wetting phenomena characteristics appeared to highly depend on the synthesis parameters.