壳体(结构)
复合数
环氧树脂
材料科学
纳米颗粒
腐蚀
球体
蛋黄
复合材料
碳纤维
纳米技术
工程类
化学
食品科学
航空航天工程
作者
Houra Pezeshk-Fallah,H. Yari,Mohammad Mahdavian,Bahram Ramezanzadeh,Seyyed Arash Haddadi,Tizazu H. Mekonnen
标识
DOI:10.1016/j.apmt.2024.102091
摘要
This study represents the synthesis of carbon hollow spheres (CHSs) to encapsulate Zeolite Imidazole Frameworks (ZIF-8) inside and outside the CHS (ZCHS-II), and once inside the CHSs' structure (ZCHS-I) to control ZIF-8′s release properties and its influence on mild steel substrate's anti-corrosion characteristics. Nanoparticles were characterized by FE-SEM/EDX-mapping, XRD, FT-IR, HR-TEM, Raman (50–3500 cm−1), and XPS. ZIF-8 nanoparticles were successfully decorated both inside and outside the CHSs' structure according to BET and HR-TEM results. Additionally, ZCHS-II exhibited better control of Zn ions release compared to ZIF-8 and ZCHS-I nanoparticles. It was found that the ZCHS-II nanocomposite considerably enhanced the steel substrate's corrosion resistance. After 72 h of contact in NaCl media, |Z|f = 0.01 for the scratched ZCHS-II/EP (79,432 Ω.cm2) was higher than other nanocomposites and the EP coating. Moreover, ZCHS-II demonstrated excellent barrier properties during 50 days of immersion in NaCl media (log |Z|f = 0.01 > 10 Ω.cm2) and superior pull-off strength in wet conditions (2.92 MPa).
科研通智能强力驱动
Strongly Powered by AbleSci AI