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3D Organic Nanofabrics: Plasma-Assisted Synthesis and Antifreezing Behavior of Superhydrophobic and Lubricant-Infused Slippery Surfaces.
Langmuir ( IF 3.7 ) Pub Date : 2019-12-09 , DOI: 10.1021/acs.langmuir.9b03116 Maria Alcaire 1 , Carmen Lopez-Santos 1, 2 , Francisco J Aparicio 1 , Juan R Sanchez-Valencia 1, 2 , Jose M Obrero 1 , Zineb Saghi 3 , Victor J Rico 1 , German de la Fuente 4 , Agustin R Gonzalez-Elipe 1 , Angel Barranco 1 , Ana Borras 1
Langmuir ( IF 3.7 ) Pub Date : 2019-12-09 , DOI: 10.1021/acs.langmuir.9b03116 Maria Alcaire 1 , Carmen Lopez-Santos 1, 2 , Francisco J Aparicio 1 , Juan R Sanchez-Valencia 1, 2 , Jose M Obrero 1 , Zineb Saghi 3 , Victor J Rico 1 , German de la Fuente 4 , Agustin R Gonzalez-Elipe 1 , Angel Barranco 1 , Ana Borras 1
Affiliation
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Herein, we present the development of supported organic nanofabrics formed by a conformal polymer-like interconnection of small-molecule organic nanowires and nanotrees. These organic nanostructures are fabricated by a combination of vacuum and plasma-assisted deposition techniques to generate step by step, single-crystalline organic nanowires forming one-dimensional building blocks, organic nanotrees applied as three-dimensional templates, and the polymer-like shell that produces the final fabric. The complete procedure is carried out at low temperatures and is compatible with an ample variety of substrates (polymers, metal, ceramics; either planar or in the form of meshes) yielding flexible and low solid-fraction three-dimensional nanostructures. The systematic investigation of this progressively complex organic nanomaterial delivers key clues relating their wetting, nonwetting, and anti-icing properties with their specific morphology and outer surface composition. Water contact angles higher than 150° are attainable as a function of the nanofabric shell thickness with outstanding freezing-delay times (FDT) longer than 2 h at -5 °C. The role of the extremely low roughness of the shell surface is settled as a critical feature for such an achievement. In addition, the characteristic interconnected microstructure of the nanofabrics is demonstrated as ideal for the fabrication of slippery liquid-infused porous surfaces (SLIPS). We present the straightforward deposition of the nanofabric on laser patterns and the knowledge of how this approach provides SLIPS with FDTs longer than 5 h at -5 °C and 1 h at -15 °C.
中文翻译：
3D有机纳米织物：超疏水和润滑剂注入的光滑表面的等离子体辅助合成和抗冻行为。
在本文中，我们介绍了由小分子有机纳米线和纳米树的共形聚合物状互连形成的受支持有机纳米织物的开发。这些有机纳米结构是通过真空和等离子体辅助沉积技术的组合来逐步生成的，形成一维结构单元的单晶有机纳米线，用作三维模板的有机纳米树以及像聚合物一样的壳，生产最终的面料。完整的过程在低温下进行，并且与多种基材（聚合物，金属，陶瓷；平面的或网状的）兼容，可产生柔性且低固相分数的三维纳米结构。对这种逐渐复杂的有机纳米材料的系统研究提供了一些关键线索，这些线索将它们的润湿性，非润湿性和防冰性与其特定的形态和外表面组成相关联。根据纳米织物壳的厚度，可以获得高于150°的水接触角，并且在-5°C时具有超过2 h的出色的冷冻延迟时间（FDT）。壳表面的极低粗糙度的作用被确定为实现此目的的关键特征。另外，纳米纤维的特征性互连微结构被证明是制造光滑的注入液体的多孔表面（SLIPS）的理想选择。
更新日期：2019-12-11
中文翻译：
3D有机纳米织物：超疏水和润滑剂注入的光滑表面的等离子体辅助合成和抗冻行为。
在本文中，我们介绍了由小分子有机纳米线和纳米树的共形聚合物状互连形成的受支持有机纳米织物的开发。这些有机纳米结构是通过真空和等离子体辅助沉积技术的组合来逐步生成的，形成一维结构单元的单晶有机纳米线，用作三维模板的有机纳米树以及像聚合物一样的壳，生产最终的面料。完整的过程在低温下进行，并且与多种基材（聚合物，金属，陶瓷；平面的或网状的）兼容，可产生柔性且低固相分数的三维纳米结构。对这种逐渐复杂的有机纳米材料的系统研究提供了一些关键线索，这些线索将它们的润湿性，非润湿性和防冰性与其特定的形态和外表面组成相关联。根据纳米织物壳的厚度，可以获得高于150°的水接触角，并且在-5°C时具有超过2 h的出色的冷冻延迟时间（FDT）。壳表面的极低粗糙度的作用被确定为实现此目的的关键特征。另外，纳米纤维的特征性互连微结构被证明是制造光滑的注入液体的多孔表面（SLIPS）的理想选择。
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