生物无多功能光热表面用于抗/解/驱动冰和滴滴操纵
Lin Wang1,2, Chengchun Zhang1,2,3, Yasong Zhang2,3
1National Key Laboratory of Automotive Chassis Integration and Bionics, Jilin University, Changchun, 130022, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 21, 2024
概括
研究人员使用碳纳米管开发了一个可切换的超疏水性光热表面 (SH-PS). 这种持久的表面表现出有效的抗结冰,脱冰和先进的滴滴操纵,即使在磨损后.
科学领域:
- 材料科学 材料科学 材料科学
- 表面工程是什么?表面工程是什么?
- 纳米技术 纳米技术
背景情况:
- 积冰会带来安全风险,需要具有抗结冰和除冰能力的耐用表面.
- 生物仿真灵感来自壁皮肤和Nepenthes,有助于设计先进的功能表面.
研究的目的:
- 创建一个可切换的超性光热表面 (SH-PS) 与微纳米层次结构,以增强抗结冰和脱冰.
- 为了研究表面在各种温度条件和滴滴冲击下的性能.
- 评估表面的滴滴操纵能力,包括反重力运输和可编程轨道.
主要方法:
- 使用碳纳米管复合材料制造微纳米层次结构,采用一步激光方法.
- 通过注入油,将超光热表面 (SH-PS) 切换为滑光热表面 (S-PS).
- 在近红外 (NIR) 辐射下测试结冰延迟,动态抗结冰,光热解冰和滴滴操纵.
主要成果:
- 滑动的光热表面 (S-PS) 在-20°C/-30°C时有效地延迟了结冰,并在28次超冷滴撞击后保持了动态的抗结冰作用.
- 近红外 (NIR) 辐射使高效光热除冰和控制冰滴的行为成为可能.
- 该S-PS展示了显著的滴滴操纵,包括反重力运输 (8°) 和可编程轨道控制,即使在20m磨损后,滑剂输入.
结论:
- 开发的可切换光热表面提供了强大的抗结冰,脱冰和滴滴操纵功能.
- 表面的耐用性和磨损后的性能表明在具有挑战性的环境中广泛应用的潜力.
- 这项研究提出了一种有前途的方法,用于创建灵感来自大自然的先进功能表面.
相关概念视频
01:05Total Internal Reflection Fluorescence Microscopy
11.0K
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
11.0K
01:27Role of Water in Human Biology
10.5K
Water is the one of the most significant components of the human body; it plays a crucial role in several physiological activities because of its unique physicochemical properties. Importantly, it helps to regulate body temperature and is the chief component of several body fluids.
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
10.5K
01:27Surface Active Agents
158
Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
158