College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450002, P. R. China.
Équipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine, Nancy, 54000, France.
Macromol Rapid Commun. 2023 Oct;44(20):e2300333. doi: 10.1002/marc.202300333. Epub 2023 Aug 21.
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°, and exhibits a maximum saturated adsorption capacity of 54.11 g g . Furthermore, the foam can be utilized as a filter for oil-water separation, maintaining its filtration efficiency (41.2 m m h ) even after ten filtration cycles.
溢油和含油废水的存在造成了巨大的生态破坏。具有选择性和吸附能力的超疏水聚合物泡沫是高效油水分离的有前途的候选材料。本研究提出了一种通过相分离和二氧化硅涂层制备超疏水热塑性聚氨酯（TPU）泡沫的方法。TPU 泡沫表现出超疏水性，水接触角为 155.62°，最大饱和吸附容量为 54.11 g/g。此外，该泡沫可用作油水分离的过滤器，即使经过十次过滤循环，其过滤效率（41.2 mm h）仍能保持。
