化和无化超疏水性无裂纹涂料的结构性质关系
Sevil Turkoglu1, Jinde Zhang1, Hanna Dodiuk2
1Plastics Engineering Department, University of Massachusetts Lowell, Lowell, MA 01854, USA.
Polymers
|April 13, 2024
概括
研究人员使用喷涂涂料开发了超疏水性纳米复合材料涂层. 无,无裂纹的超性涂层是可以实现的,通过优化颗粒载荷和多化基胺含量,可以提供更好的反水性.
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:
- 超水表面模仿自然的反水现象.
- 开发耐用且环保的超性涂层对于各种应用至关重要.
- 聚化基烯酸 (PFAS) 经常用于实现超性,但引发了环境问题.
研究的目的:
- 研究颗粒载荷和多化基酸盐 (FAS) 含量对超性纳米复合材料涂层的影响.
- 评估二氧化和环氧涂料的化学,地形和湿特性.
- 确定制造无,无裂纹超性涂层的可行性.
主要方法:
- 纳米复合材料配方的喷涂涂层含有疏水性二氧化,环氧树脂和FAS或无成分.
- 分析颗粒载荷和FAS含量对涂层性能的影响.
- 使用X射线光电谱 (XPS) 进行表征,以确定表面化学和丰富.
主要成果:
- 在较高颗粒负载 (~30%重量%) 和~13%重量下实现了超性. 在较低颗粒负载配方中的FAS含量.
- 在低颗粒载荷下增加的FAS含量通过化学和地形学增强了排水能力 (卡西州).
- 高含量的FAS与高颗粒负载 (~30重量%) 导致显著的裂形成,而无的选择显示出有前途.
结论:
- 超疏水性纳米复合材料涂层可以成功地使用喷涂涂料制造.
- 优化颗粒载荷和FAS含量是实现所需的超性和最小化缺陷的关键.
- 这项研究证明了创造有效,无和无裂纹的超性涂层的潜力.
更多相关视频
07:37TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method
Published on: April 26, 2017
10.1K
08:02Rendering SiO2/Si Surfaces Omniphobic by Carving Gas-Entrapping Microtextures Comprising Reentrant and Doubly Reentrant Cavities or Pillars
Published on: February 11, 2020
9.0K
相关概念视频
Halogens
18.5K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group.
18.5K
Molecular Shape and Polarity
60.4K
Dipole Moment of a Molecule
60.4K
Waterproofing and Anti-Bacterial Admixtures in Concrete
78
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
78
Valence Bond Theory
32.3K
Overview of Valence Bond Theory
32.3K
Surface Tension of Fluid
279
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
Surface tension varies...
279
Frost Action on Concrete
97
Concrete structures in cold climates, such as those along roadsides, can retain moisture. This moisture makes them susceptible to frost-related damage when temperatures fall below freezing. Adding moisture worsens the damage during temperature fluctuations, leading to repeated freezing and thawing. De-icing salts, spread over these structures to melt ice, add to the freeze-thaw cycle, and draw even more moisture into the concrete.
This freeze-thaw cycle primarily causes surface scaling, where...
This freeze-thaw cycle primarily causes surface scaling, where...
97
