期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202300333
关键词
microporous structures; oil-water separation; polylactic acid; silica nanoparticles; superhydrophobic
Oil spills and oily wastewater have caused significant ecological damage, while superhydrophobic polymer foam has the potential for efficient oil-water separation. This study proposes a method that combines phase separation and silica coating to produce superhydrophobic TPU foam. The TPU foam exhibits superhydrophobicity and a high saturated adsorption capacity, making it an effective filter for oil-water separation even after multiple filtration cycles.
Oil spills and the presence of oily wastewater have resulted in substantial ecological damage. Superhydrophobic polymer foam with selectivity and adsorption capacity is a promising candidate for efficient oil-water separation. In this study, a method that combines phase separation and silica coating to produce superhydrophobic thermoplastic polyurethane (TPU) foam is proposed. The TPU foam demonstrates superhydrophobicity with a water contact angle of 155.62 & DEG;, and exhibits a maximum saturated adsorption capacity of 54.11 g g(-1). Furthermore, the foam can be utilized as a filter for oil-water separation, maintaining its filtration efficiency (41.2 m(3) m(2) h(-1)) even after ten filtration cycles.
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