首页|Unraveling the complex infiltration and repairing behaviors in defect coatings

Unraveling the complex infiltration and repairing behaviors in defect coatings

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Organic coatings are commonly used to protect the metals or alloys from corrosion.However,defects such as scratches or natural aging of the coating can induce unexpected diffusion paths for the corrosive media,so the wettability of repairing liquids and the selection of suitable repairing liquids are crucial.In this study,we systematically investigated the capillary impregnation phenomenon by using liquids with various surface tensions and glass capillaries with different surface energies.We utilized this regularity to instruct the defects repairing process.By using an ultra-depth field microscope,scanning electron mi-croscope,and electrochemical analysis,two kinds of repairing liquids,high surface tension liquid(HSTL)and low surface tension liquid(LSTL),were investigated for repairing man-made defects of coatings.Our results showed that the substrate and the surface energy of the liquids significantly influence the infil-tration of the repair liquid.By effectively leveraging the relationship between the repair liquid and the substrate,the repair agent can not only establish a uniform and dense repairing layer but also notably enhance the corrosion resistance of the defective coating.This study provides valuable insights into the repairing of coating defects,as well as liquids transportation,microfluidic chip design,and surface modi-fication of microporous materials.

Surface energyInfiltrationGlass capillaryRepair agents

Shuaiwei Peng、Tianguan Wang、Guang Huang、Zhuofu Tang、Ziya Shao、Zhiyuan Feng、Bing Lei、Guozhe Meng、Honglei Guo

展开 >

School of Chemical Engineering and Technology,Sun Yat-sen University,Zhuhai 519082,China

Faculty of Science and Technology,University of Macau,E11,Avenida da Universidade,Taipa,Macau 999078,China

National Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Guangdong Province of ChinaNatural Science Foundation of Guangdong Province of China

2019YFE011100051903257U20A20233U22A201352023A15150122752022A1515010805

2024

10.1016/j.jmst.2023.11.037

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子：0.657
ISSN：1005-0302
年,卷(期)：2024.187(20)
  • 41