TY - JOUR
T1 - Corrosion protection coatings embedded with silane-functionalized rGO/SiO2 nanocontainers
T2 - Enhancing dispersive and corrosion-inhibitor loading capabilities
AU - Li, Dandan
AU - Peng, Han
AU - Lin, Zaiwen
AU - Zhu, Jiahui
AU - Yu, Jing
AU - Liu, Jingyuan
AU - Chen, Rongrong
AU - Liu, Qi
AU - Wang, Jun
N1 - Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/15
Y1 - 2021/12/15
N2 - Taking advantage of the excellent barrier properties of reduced graphene oxide (rGO) sheets and the loading capacity of mesoporous silica (SiO2), silane-functionalized rGO/SiO2 nanocontainers are synthesized and, after loaded with benzotriazole (BTA), composite corrosion protection coatings are prepared. The XRD, FTIR, XPS, SEM, and TEM are used to confirm the successful preparation of silane-functionalized rGO/SiO2 nanocontainers, and BET and UV–visible measurements are used to estimate the loading and release behavior of BTA. Dispersion stability of the nanocontainers is observed, the surface morphology, wettability, and water absorption of coatings are characterized by SEM, water contact angle, and weight method, respectively. The corrosion behavior of pristine and scratched composite coatings is characterized by EIS, the effect of released BTA is further confirmed. The results show that silane-functionalized rGO/SiO2 nanocontainers possess excellent dispersibility and load capacity, reduce defects and micropores in composite coatings, and provide improved permeability resistance, corrosion resistance, and self-repairing performance.
AB - Taking advantage of the excellent barrier properties of reduced graphene oxide (rGO) sheets and the loading capacity of mesoporous silica (SiO2), silane-functionalized rGO/SiO2 nanocontainers are synthesized and, after loaded with benzotriazole (BTA), composite corrosion protection coatings are prepared. The XRD, FTIR, XPS, SEM, and TEM are used to confirm the successful preparation of silane-functionalized rGO/SiO2 nanocontainers, and BET and UV–visible measurements are used to estimate the loading and release behavior of BTA. Dispersion stability of the nanocontainers is observed, the surface morphology, wettability, and water absorption of coatings are characterized by SEM, water contact angle, and weight method, respectively. The corrosion behavior of pristine and scratched composite coatings is characterized by EIS, the effect of released BTA is further confirmed. The results show that silane-functionalized rGO/SiO2 nanocontainers possess excellent dispersibility and load capacity, reduce defects and micropores in composite coatings, and provide improved permeability resistance, corrosion resistance, and self-repairing performance.
KW - Corrosion protection
KW - Mesoporous silica
KW - Nanocontainer
KW - Reduced graphene oxide
KW - Self-repair
UR - https://www.scopus.com/pages/publications/85118593220
U2 - 10.1016/j.surfcoat.2021.127850
DO - 10.1016/j.surfcoat.2021.127850
M3 - Article
AN - SCOPUS:85118593220
SN - 0257-8972
VL - 427
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
M1 - 127850
ER -