• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Stable Omniphobic Anisotropic Covalently Grafted Slippery Surfaces for Directional Transportation of Drops and Bubbles
【24h】

Stable Omniphobic Anisotropic Covalently Grafted Slippery Surfaces for Directional Transportation of Drops and Bubbles

机译：稳定的憎水各向异性共价接枝的光滑表面，用于液滴和气泡的定向运输

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Directional transportation and collection of liquids and bubbles are highly desirable in human life and industrial production. As one of the most promising types of functional surfaces, the reported anisotropic slippery liquid-infused porous surfaces (SLIPSs) demonstrate unique advantages in liquid directional transportation. However, anisotropic SLIPSs readily suffer from the depletion of lubricant when used to manipulate droplets and bubbles, which leads to unstable surface properties. Therefore, fabricating stable anisotropic slippery surfaces for the directional transportation of drops and bubbles remains a challenge. Here, stable anisotropic covalently grafted slippery surfaces are fabricated by grafting polydimethylsiloxane molecular brushes onto directional microgrooved surfaces. The fabricated surfaces show remarkable anisotropic omniphobic sliding behaviors towards droplets with different surface tensions ranging from 72.8 to 37.7 mN m(-1) in air and towards bubbles underwater. Impressively, the surface maintains outstanding stability for the transportation of droplets (in air) and air bubbles (underwater) even after 240 d. Furthermore, anisotropic self-cleaning towards various dust particles in air and directional bubble collection underwater are achieved on this surface. This stable anisotropic slippery surface has great potential for applications in the directional transportation of liquids and bubbles, microfluidic devices, directional drag reduction, directional antifouling, and beyond.
机译：在人类生活和工业生产中，非常需要定向运输和收集液体和气泡。作为功​​能表面最有前景的类型之一，已报道的各向异性的光滑液体注入多孔表面（SLIPS）在液体定向运输中显示出独特的优势。但是，各向异性的SLIPS在用于操纵液滴和气泡时很容易遭受润滑剂消耗的困扰，这会导致表面性能不稳定。因此，制造稳定的各向异性光滑表面以用于液滴和气泡的定向输送仍然是一个挑战。在这里，稳定的各向异性共价接枝的光滑表面是通过将聚二甲基硅氧烷分子刷接枝到定向微槽表面上而制成的。制成的表面对空气中的不同表面张力范围从72.8至37.7 mN m（-1）的液滴以及对水下的气泡表现出显着的各向异性全疏水性。令人印象深刻的是，即使在240天后，该表面仍保持出色的稳定性，可用于液滴（空气）和气泡（水下）的运输。此外，在该表面上实现了对空气中各种灰尘颗粒的各向异性自清洁和水下定向气泡收集。这种稳定的各向异性光滑表面具有很大的潜力，可用于液体和气泡的定向输送，微流体设备，定向减阻，定向防污等领域。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号