Rapid and Stable Plasma Transformation of Polyester Fabrics for Highly Efficient Oil-Water Separation.,Global Challenges

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Rapid and Stable Plasma Transformation of Polyester Fabrics for Highly Efficient Oil-Water Separation.
Global Challenges ( IF 4.4 ) Pub Date : 2020-03-03 , DOI: 10.1002/gch2.201900095
Ye Sun ₁ , Bo Ouyang ₂ , Rajdeep Singh Rawat ₂ , Zhong Chen ₁

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Fabrics with special wettability have drawn growing attention in recent years in the area of oil–water separation due to their low cost, good flexibility, and ease of handling. However, an efficient and fast method to enable the required wetting state on fabrics still remains a challenge. In this work, a one‐step, rapid, and chemical‐free hydrogen plasma treatment is reported to prepare a superhydrophobic and oleophilic polyester fabric. The as‐prepared fabrics display a static water contact angle of 153.2° with excellent oil–water separation capability. The mechanism of surface transformation is discussed through chemical analyses, which indicate a significant removal of carboxyl group from the pristine hydrophilic surface. This developed method is envisaged to be used for on‐demand large‐scale production of materials for emergency oil cleanup through either separation or selective adsorption.

中文翻译：

聚酯织物快速稳定的等离子体转化，实现高效油水分离。

近年来，具有特殊润湿性的织物因其成本低、柔韧性好、易于处理而在油水分离领域受到越来越多的关注。然而，一种有效、快速的方法来使织物达到所需的润湿状态仍然是一个挑战。在这项工作中，报道了一种一步、快速、无化学物质的氢等离子体处理来制备超疏水和亲油的聚酯织物。所制备的织物的静态水接触角为153.2°，具有优异的油水分离能力。通过化学分析讨论了表面转变的机制，这表明羧基从原始亲水表面上显着去除。这种开发的方法预计将用于通过分离或选择性吸附按需大规模生产用于紧急石油净化的材料。

更新日期：2020-03-03

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