Nanofibers and microbumps intertwined in 3D networked 1H,1H,2H,2H‐perfluorodecyltrichlorosilane (FTS)‐derived surfaces are synthesized by a phase separation reaction. The surfaces shows super‐amphiphobicity in air and super‐oleophilicity under water. The special wettablity of the surface is well retained, even after repeated use and flushing. The surfaces are successfully used to capture and collect oil droplets in water.
The interesting oil-wetting behavior to a superamphiphobic surface in water has been investigated. We demonstrated that the trapped air can tune the underwater wettability of the surface, changing from superoleophilic to superoleophobic. The trapped air in the grooves of the superamphiphobic surface can cause the significant change of the three-phase contact line (TCL).
Star-shaped and linear block thermoplastic poly(styrene-b-butadiene) copolymer (SBS)/organophilic montmorillonite clays (OMMT) were prepared by a solution approach. The intercalation spacing in the nanocomposites and the degree of dispersion of nanocomposites were investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. The mechanical properties, dynamic mechanical properties, and thermal stability of these nanocomposites were determined. Results showed that SBS chains were well intercalated into the clay galleries and an intercalated nanocomposite was obtained. The mechanical strength of nanocomposites with the star-shaped SBS/OMMT were significantly increased. The addition of OMMT also gave an increase of the elongation, the dynamic storage modulus, the dynamic loss modulus, and the thermal stability of nanocomposites. The increase of the elongation of nanocomposites indicates that SBS has retained good elasticity.
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