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相关概念视频

Two Components: Liquid–Liquid Systems01:27

Two Components: Liquid–Liquid Systems

A pressure-composition phase diagram explicitly describes the behavior of an ideal solution of two volatile liquids under varying pressures and compositions. A pressure-composition diagram has two main curves. The bubble point curve represents the plot of pressure versus liquid mole fraction. It indicates the pressure at which the first bubble of vapor forms from the liquid phase as the system pressure decreases.The dew point curve is the pressure versus vapor mole fraction. It indicates the...
Nonideal Two-Component Liquid Solutions01:29

Nonideal Two-Component Liquid Solutions

Nonideal liquid solutions, also known as real solutions, do not strictly follow Raoult's law. Raoult's law is a rule of thumb in physical chemistry. However, not all mixtures adhere to this law due to varying molecular interactions. For example, in an acetone/chloroform solution, the individual vapor pressures of the components are lower than expected, resulting in a total vapor pressure below that predicted by Raoult's law, causing a negative deviation.On the other hand, in an ethanol/water...
Phase Diagrams of Ternary Systems01:28

Phase Diagrams of Ternary Systems

Consider a ternary system, which is composed of three components: water (W), ethanoic acid (E), and trichloromethane (T). Here, Ethanoic acid (E) is fully miscible with both water (W) and trichloromethane (T), meaning it can mix entirely with either of them. However, water and trichloromethane have partial miscibility, meaning they can only mix to a certain extent, beyond which two separate phases will form.The phase diagram of a ternary system is represented as an equilateral triangle, where...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Design Example: Deciding Thickness of Lubricating Fluid in a Shaft01:23

Design Example: Deciding Thickness of Lubricating Fluid in a Shaft

Effective lubrication between a rotating shaft and its bearing housing is essential in rotating machinery to minimize friction, wear, and energy loss. With carefully controlled thickness and viscosity, the lubricant layer prevents metal-to-metal contact, ensuring smooth operation.
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular velocity...

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相关实验视频

Updated: Jul 13, 2026

Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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高度全面的液态涂料的合理设计,具有增强的透明度,协同的多功能和优良的耐用性:一项二次合作战略.

Yang Su1,2, Junhui He1

  • 1Functional Nanomaterials Laboratory, Center for Micro/Nanomaterials and Technology, and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.

Advanced materials (Deerfield Beach, Fla.)
|July 14, 2024
PubMed
概括

研究人员开发了一种持久,透明的涂层,具有特殊的驱逐性能. 这种多功能表面为各种工业和日常应用提供了增强的耐用性.

关键词:
持久涂层是一种持久涂层.类似液体的类似液体多功能多功能机器人它具有滑动性,具有滑动性.

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TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method
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相关实验视频

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科学领域:

  • 材料科学 材料科学 材料科学
  • 表面化学 表面化学
  • 纳米技术纳米技术

背景情况:

  • 开发具有排斥性质的透明表面对于工业和日常生活至关重要.
  • 在反射涂料中同时实现全反射性,多功能性和耐用性是一项挑战.

研究的目的:

  • 设计一个综合性涂层,整合透明度,全能性和多功能性.
  • 为了证明在严格条件下开发的涂层的前所未有的耐用性.

主要方法:

  • 使用结构和分子设计原则的组合.
  • 创建了一个具有量身定制的表面性能的混合涂层.
  • 将涂层置于广泛的机械磨损,粘附/剥离测试和极端pH浸泡中.

主要成果:

  • 混合涂层表现出高透明度和异常的泛恐惧性.
  • 该涂层成功地集成了多种功能,包括防污垢,防结冰和防腐蚀.
  • 证明了显著的耐用性,在2.5 × 10 ^ 5磨损周期和1000个粘附/剥离周期后保持性能.

结论:

  • 开发的涂层为各种应用提供了多功能和耐用的解决方案.
  • 提供了制造先进功能表面的设计蓝图.
  • 突出结合结构和分子设计的潜力,以创建高性能涂层.