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  • Liquefied wood based polyurethane-nanosilica hybrid coatings and hydrophobization by self-assembled monolayers of orthotrichlorosilane (OTS)
    Kumar, Anuj, kemijski tehnolog ...
    We have produced hybrid liquefied wood based polyurethane (LW-PU) and LW-PU/nanosilica hybrid coatings for wood substrates. The prepared hybrid polyurethane coatings were hydrophobized by ... self-assembled monolayers of orthotrichlorosilane (OTS) via sol-gel dipping process. The nanosilica addition into LW-PU system enhanced the physical properties of coatings like surface hardness, and stability towards cold liquids. The OTS hydrophobized coatings were characterized by Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and thermo-gravimetric analysis (TGA). The surface became hydrophobic as the contact angle (CA) for water droplet on modified hybrid coating was ~115o and very stable. The FTIR, SEM and EDS analysis confirmed the formation of OTS monolayers on hybrid coatings.
    Source: ACS sustainable chemistry & engineering [Elektronski vir]. - ISSN 2168-0485 (Vol. 3, no. 10, 2015, str. 2533-2541)
    Type of material - e-article ; adult, serious
    Publish date - 2015
    Language - english
    COBISS.SI-ID - 2434441

    Link(s):

    http://pubs.acs.org/doi/abs/10.1021/acssuschemeng.5b00723
    DOI

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