Nanofibrous polystyrene membranes prepared through solution blow spinning with an airbrush and the facile application in oil recovery
Nanofibrous polystyrene membranes prepared through solution blow spinning with an airbrush and the facile application in oil recovery
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喷枪溶液吹纺制备纳米纤维聚苯乙烯膜及其在采油中的简便应用
DOI：
10.1007/s00339-018-1769-0
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发表时间：
2018-05-01
影响因子：
2.7
通讯作者：
Zhu, Li
中科院分区：
文献类型：
--
作者：
Zhang, Xiaohui;Lv, Ju;Zhu, Li
将溶解在二氯甲烷中的聚苯乙烯（PS）通过使用商用喷枪进行溶液吹纺来纺丝以制备纳米纤维聚苯乙烯膜（NPS）。研究了纺丝条件对膜形貌、密度和孔隙率的影响。通过改变PS浓度（8%、9%、10%）、气压（0.1、0.2、0.3MPa）和接受距离（10、12、15、18cm），制备出直径为200-1400nm的NPS。该膜具有83.9%的高孔隙率和超疏水、超亲油的表面。对机油、花生油、柴油和重油的吸油度分别为29.35、27.27、21.81和22.80 g/g，而商品化的非织造聚丙烯的吸油度分别为9.34、9.17、7.09和7.79 g/g。 NPS 可以在几秒钟内将油从水面分离出来。很容易在油/水混合物表面原位制备膜，并且在剥离膜的同时去除油，表明NPS作为大面积油污染环境中的采油材料具有潜力。
Polystyrene (PS) dissolved in dichloromethane was spun to prepare the nanofibrous polystyrene membranes (NPS) through solution blow spinning with a commercialized airbrush. The influences of spinning conditions on the membrane morphology, density, and porosity were investigated. Through varying the PS concentration (8%, 9%, 10%), gas pressure (0.1, 0.2, 0.3 MPa), and acceptance distance (10, 12, 15, 18 cm), NPS with diameters of 200–1400 nm were prepared. The membranes had high porosity of 83.9%, and super-hydrophobic and super-oleophilic surface. The oil absorbency to motor oil, peanut oil, diesel oil, and heavy oil was 29.35, 27.27, 21.81, and 22.80 g/g, respectively, while that of the commercialized nonwoven polypropylene was 9.34, 9.17, 7.09, and 7.79 g/g, respectively. NPS could separate oil from water surface in several seconds. It was easy to prepare the membrane in situ on the surface of an oil/water mixture and remove the oil while peeling off the membrane, indicating NPS is potential as oil recovery material in large-area oil pollution environment.