Remarkably simple achievement of superhydrophobicity, superhydrophilicity, underwater superoleophobicity, underwater superoleophilicity, underwater superaerophobicity, and underwater superaerophilicity on femtosecond laser ablated PDMS surfaces
Remarkably simple achievement of superhydrophobicity, superhydrophilicity, underwater superoleophobicity, underwater superoleophilicity, underwater superaerophobicity, and underwater superaerophilicity on femtosecond laser ablated PDMS surfaces
复制标题
在飞秒激光烧蚀的 PDMS 表面上非常简单地实现超疏水性、超亲水性、水下超疏油性、水下超亲油性、水下超疏气性和水下超亲气性
DOI：
10.1039/c7ta07528f
复制
发表时间：
2017-12-28
影响因子：
11.9
通讯作者：
Hou, Xun
中科院分区：
文献类型：
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作者：
Yong, Jiale;Chen, Feng;Hou, Xun
首次报道了在飞秒激光烧蚀聚二甲基硅氧烷（PDMS）表面上简单实现六种不同的超润湿性。实验和理论分析表明，水下油润湿性和水下气泡在固体表面的行为与基材表面空气中水的润湿性密切相关。最初的飞秒激光诱导微结构PDMS表面在空气中表现出优异的超疏水性，并且在水中通常变得超亲油和超亲气。经过氧等离子体的进一步照射后，粗糙的PDMS表面转变为超亲水性。当这种超亲水PDMS表面浸入水中时，可以表现出水下超疏油和超疏气性能。此外，通过随后的选择性氧等离子体处理，在飞秒激光烧蚀的PDMS表面上成功设计并实现了各种超疏水-超亲水、水下超疏油-超亲油和水下超疏油-超亲气混合图案。我们相信，所报道的超疏水、超亲水、水下超疏油、水下超亲油、水下超疏气和水下超亲气表面的制备原理对于研究人员和工程师有效控制材料表面的水滴、油滴和气泡行为具有重要的指导意义。
A simple achievement of six different super-wettabilities on the femtosecond laser ablated polydimethylsiloxane (PDMS) surface is reported for the first time. Both the experimental and theoretical analysis revealed that underwater oil wettability and underwater bubbles' behavior on a solid surface are closely related to the in-air water wettability of the substrate surface. The original femtosecond laser-induced microstructured PDMS surface exhibited excellent superhydrophobicity in air and generally became superoleophilic and superaerophilic in water. After being further irradiated by oxygen plasma, the rough PDMS surface switched to superhydrophilic. Underwater superoleophobicity and superaerophobicity could be exhibited when such a superhydrophilic PDMS surface was immersed in water. Furthermore, various superhydrophobic–superhydrophilic, underwater superoleophobic–superoleophilic and underwater superaerophobic–superaerophilic hybrid patterns were successfully designed and achieved on the femtosecond laser ablated PDMS surface by subsequent selective oxygen plasma treatment. We believe that the reported preparation principle of superhydrophobic, superhydrophilic, underwater superoleophobic, underwater superoleophilic, underwater superaerophobic, and underwater superaerophilic surfaces would have important guiding significance to researchers and engineers to effectively control water droplets, oil droplets and the behavior of bubbles on a material surface.