微凝功能化的金属有机框架复合材料聚氨/水凝涂层的制造,具有增强的防性能
Bin Liu1, Yixin Wang1, Yikun Ji1
1Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China.
ACS applied materials & interfaces
|June 5, 2025
概括
新的复合涂层 (PMETAC@Ag-MOF/PU/GEL) 通过将聚氨/水凝与银金属有机框架相结合,增强了海洋防策略. 这些涂料提供了优越的机械强度,减少了生物,并提高了耐腐蚀性.
科学领域:
- 材料科学 材料科学 材料科学
- 海洋生物学 海洋生物学
- 腐蚀工程 腐蚀工程
背景情况:
- 防涂层对于海洋应用至关重要,但往往由于机械性能差以及抗菌功效有限而受到影响.
- 现有的解决方案难以平衡耐用性和有效的生物污染预防.
研究的目的:
- 开发具有增强机械和防腐性能的先进复合涂料.
- 研究聚氨,水凝和银金属有机框架在海洋涂料中的协同效应.
主要方法:
- 通过将聚氨/水凝 (PU/GEL) 与微凝功能化的金属有机框架 (PMETAC@Ag-MOF) 集成,制造复合涂料.
- 机械性能,抗胀,滑和抗菌性能的表征.
- 通过缓慢的银离子 (Ag+) 释放和屏障形成来评估耐腐蚀性.
主要成果:
- PMETAC@Ag-MOF/PU/GEL涂层表现出改善的机械强度,抗胀性和滑性.
- 达到99%以上的细菌消除和98%的微藻附着减少.
- 由于屏障形成和受控的Ag+释放,显著增强了耐腐蚀性.
结论:
- 开发的复合涂料为海洋防应用提供了有前途的解决方案.
- 集成PMETAC@Ag-MOF提供了一个多功能填充剂,提高了涂层性能.
- 该研究强调了基于MOF的复合材料在可持续和有效的海洋保护方面的潜力.
相关概念视频
Properties of Organometallic Compounds
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
Fiber Reinforced Concrete
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
Ferrocement
Ferro-cement is a distinctive construction material that represents an innovative variant of reinforced concrete, characterized by its unique composition and the method by which it is formed. Unlike standard reinforced concrete, which relies on larger steel bars for reinforcement, ferro-cement utilizes densely packed layers of mesh or fine rods, fully encased in cement mortar. This composition allows for the creation of structures that are significantly thinner and more flexible than their...
Waterproofing and Anti-Bacterial Admixtures in Concrete
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,...
Microbial Corrosion
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...


