首页|Mechanical properties of organic-inorganic hybrid black coating of silica and polyurethane
Mechanical properties of organic-inorganic hybrid black coating of silica and polyurethane
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NETL
NSTL
Trans Tech Publications Ltd
The mechanical properties of black thin film on glass substrates and metallic, obtained from the synthesis of organic-inorganic silica hybrids via sol-gel are described. Hybrid silica-based coatings with tetraethoxysilane (TEOS), methyltrietoxysilane (MTES), polyurethane (PU) and commercial silica colloidal solution (Ludox HS30) as precursors, were used. The procedure is divided in the following three steps: 1) obtaining homogenous and stable solutions of different organic silica-polymer composition, 2) aggregation of the black pigment with the formulate FeMnO_x, 3) Coating substrates by both dip-coating and aerograph airbrush, at room temperature. The films obtained were characterized by SEM, AFM and nano-indentation. The coatings of the Ludox-MTES-PU/FeMnO_x system showed the better characteristics concerning the morphology and the adhesion to the glass and metallic copper substrates.
NETL
NSTL
Trans Tech Publications Ltd
