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Waterproofing and Anti-Bacterial Admixtures in Concrete01:22

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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,...
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抗菌纳米复合材料陶涂层用于液体过应用.

Angelica Luceri1, Michela Toppan2, Alessandro Calogero2

  • 1Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy.

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膜上的创新性和银纳米涂层通过抑制细菌生长有效净化水. 这种环保方法为安全的水过提供了可持续的解决方案,显著减少了微生物污染.

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它具有抗菌作用,具有抗菌作用.复合涂料是一种复合涂料.水过器可以过水.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 环境科学 环境科学
  • 纳米技术纳米技术

背景情况:

  • 微生物污染水是由城市化和工业化推动的日益严重的全球问题.
  • 开发环保和人体安全的净水方法至关重要.
  • 现有的方法往往不足以有效地应对各种微生物威胁.

研究的目的:

  • 开发和评估用于水过的新型抗菌纳米复合材料涂层.
  • 评估在聚合物膜上使用的和银纳米聚合物涂层的有效性.
  • 探索一种可持续和可扩展的水净化方法.

主要方法:

  • 纳米复合材料涂层的制造使用环保的共喷射物理蒸气沉积 (PVD).
  • (ZrO2) 和银 (Ag) 纳米集群沉积在电聚烯酸 (PCL) 和聚烯酸-聚烯酸 (PAN-PCL) 膜上.
  • 使用XRD,UV-Vis光谱,可湿性测试和抗菌/过试验进行表征.

主要成果:

  • 证实无形ZrO2在聚合物纤维上嵌入Ag纳米集群的同质沉积.
  • 涂层膜表现出增加的疏水性,提高过性能,特别是在PCL.
  • 在过试验中表现出强烈的抗菌活性对抗Staphylococcus epidermidis和显著减少Bacillus subtilis和Listeria monocytogenes.

结论:

  • ZrO2/Ag纳米复合材料涂层有效控制水中的微生物污染.
  • 环保的PVD方法为生产先进的水过膜提供了一个可扩展的策略.
  • 这些发现突出了可持续和安全的净水系统的有希望的方法.