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    The multiple effects of organoclay and solvent evaporation on hydrophobicity of composite surfaces

    Year: 2017

    Journal: Turk. J. Chem., Volume 41, page 793–801

    Authors: Yolcu, Haci Hasan; Gurses, Ahmet; Boukherroub, Rabah

    Organizations: Council of Higher Education (Turkey); Centre National de la Recherche Scientifique (CNRS); Nord-Pas-de Calais region; Kafkas University [2015-FM-76]

    Keywords: High-density polyethylene; organoclay; composite material; superhydrophobicity

    A superhydrophobic high-density polyethylene (HDPE)/organoclay composite material with a water-static contact angle of similar to 162 degrees and low hysteresis (7 degrees) was prepared by a simple solution-intercalation technique. This one-step method consists of the insertion of organoclay, produced through cation exchange with cetyltrimethylammonium bromide (CTAB), in the polymer matrix at 120 degrees C in xylene. In this process, evaporation of the solvent and organoclay amount are key factors for the achievement of superhydrophobicity. We characterized composite material with X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and contact angle measurements. The characterizations showed that the organoclay provides a place for the formation of small polymer aggregates and facilitates the evaporation of the organic solvent. The technique described here is simple and does not require any complicated process.
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