Polyester Materials with Superwetting Silicone Nanofilaments for Oil/Water Separation and Selective Oil Absorption
Polyester Materials with Superwetting Silicone Nanofilaments for Oil/Water Separation and Selective Oil Absorption
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DOI：
10.1002/adfm.201101090
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发表时间：
2011-12-20
影响因子：
19
通讯作者：
Seeger, Stefan
中科院分区：
文献类型：
--
作者：
Zhang, Junping;Seeger, Stefan
采用化学气相沉积三氯甲基硅烷的方法，在织物上一步生长硅纳米丝，成功制备了超疏水和超亲油聚酯材料。通过扫描电子显微镜、能量色散x射线分析和水在纺织品上的润湿行为的研究，证实了硅纳米丝的成功生长。即使是深嵌在编织材料中的微纤维也可以被纳米丝很好地覆盖。涂层织物是防水的，只能被低表面张力的液体润湿。详细研究了涂层织物作为油水分离膜和选择性吸油袋的应用。由于涂层织物的超湿性和柔韧性，其优异的可重复使用性、油水分离效率和选择性吸油能力使其成为非常有前途的材料，例如实际吸油。
Superhydrophobic and superoleophilic polyester materials are successfully prepared by one-step growth of silicone nanofilaments onto the textile via chemical vapor deposition of trichloromethylsilane. The successful growth of silicone nanofilaments is confirmed with scanning electron microscopy, energy-dispersive X-ray analysis, and investigation of the wetting behavior of water on the textile. Even microfibers deeply imbedded inside a woven material could be coated very well with the nanofilaments. The coated textile is water repellant and could only be wetted by liquids of low surface tension. The applications of the coated textile as a membrane for oil/water separation and as a bag for selective oil absorption from water are studied in detail. Owing to the superwetting properties and flexibility of the coated textile, excellent reusability, oil/water separation efficiency, and selective oil absorption capacity are observed, which make it very promising material, e.g., for practical oil absorption.