Synthesis of three polyhedral oligomeric silsesquioxanes (POSS) with different functional groups (isobutyl, aminopropyl, perfluoroalkil) and their application to cotton fabric were presented. Chemical structure of POSS was determined by the IR, 29Si NMR and MS analyses and cotton’s surface free energy by the liquid contact angle measurements. While excellent oleophobicity was obtained by application of perfluorinated POSS, superhydrophobicity with the contact angles of water higher than 150°, was achieved by using only amino-POSS, which is very hard to attain for non-fluorinated compounds.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 4431898The importance of sol-gel technology for textile functionalization, its advantages over conventional finishing and mechanism of sol-gel polymer film formation on fibres is presented. Attention is given to precursors with different chemical structures, which by decreasing fibres’ surface free energy and forming micro- to nanoroughness impart the repellent properties of textiles. Importance of proper selection of precursors in the mixture, which can form sol-gel film with simultaneous superhydrophobic, oleophobic and antimicrobial properties by synergistic action, is discussed.
B.04 Guest lecture
COBISS.SI-ID: 2479216