快速的一步制造耐用的超疏水石墨烯表面,具有耐高温和自我清洁的耐用性
Zhen Zhang1, Haozhe Chang2, Peng Wang2
1School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Guangdong Intelligent Robotics Institute, Dongguan, Guangdong 523808, China; Guangdong HUST Industrial Technology Research Institute, Guangdong Provincial Key Laboratory of Digital Manufacturing Equipment, Dongguan, Guangdong 523808, China; Key Laboratory of Icing and Anti/De-icing, China Aerodynamics Research and Development Center, Mianyang, Sichuan, 621000, China.
Journal of colloid and interface science
|October 6, 2024
概括
研究人员使用激光诱导等离子体在聚胺上开发了超疏水性石墨烯薄膜. 这种耐用,自我清洁的材料由于其高温耐用性,对月球探测应用有很大希望.
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:
- 超疏水表面具有独特的特性,如自我清洁和反水性.
- 具有耐高温的柔性薄膜对于极端环境至关重要,例如月球探测.
- 基于石墨烯的材料正在探索先进的功能表面.
研究的目的:
- 开发一种在柔性聚胺薄膜上制造超疏水性石墨烯的新方法.
- 研究磁场辅助超快激光诱导等离子体对表面结构和特性的影响.
- 评估制造的薄膜对潜在的月球应用的耐高温和自我清洁能力.
主要方法:
- 使用磁场辅助的超快激光诱导等离子体,在聚胺薄膜上制造超疏水性石墨烯.
- 通过接触角和滚动角测量,对多层次的微纳米结构进行表征.
- 评估表面化学 (疏水性CC键含量) 和老化/加热稳定性.
- 通过观察用水滴去除尘埃来评估自洁性能.
主要成果:
- 获得了强烈的超疏水性石墨烯,接触角度为163.1°,滚离角度为1.5°.
- 制造的有序的多层微纳米石墨烯结构,具有72.82%的疏水性CC键含量.
- 证明了出色的稳定性,在25天的老化和300°C加热后,保持接触角度>160°.
- 展示了有效的自我清洁性能,即使在加热后,水滴也能从表面去除灰尘.
结论:
- 磁场辅助的超快激光诱导等离子体方法成功地在聚胺上制造了耐用的超疏水性石墨烯薄膜.
- 制造的薄膜具有特殊的高温耐受性和自我清洁性能.
- 这些先进的材料在月球探测和其他苛刻的环境中具有很大的应用潜力.
相关概念视频
Types of Step-Growth Polymers: Polyesters
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Preparation of Samples for Electron Microscopy
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...


