Room-temperature cured hydrophobic epoxy/graphene composites as corrosion inhibitor for cold-rolled steel |
| |
| Affiliation: | 1. Southwest Petroleum University, School of Chemistry and Chemical Engineering, Chengdu 610500, China;2. State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610500, China;3. Sichuan TongKai Energy Science and Technology Development Co., LTD, Bazhong 636600, China;1. Division of Nanotechnology and Advanced Materials, Materials and Energy Research Center, Karaj, Iran;2. Nanotechnology Research Center, Research Institute of Petroleum Industry, Tehran, Iran |
| |
| Abstract: | Nanocasting was used to develop epoxy/graphene composites (EGCs) as corrosion inhibitors with hydrophobic surfaces (HEGC). The contact angle of water droplets on a sample surface can be increased from ∼82° (epoxy surface) to ∼127° (hydrophobic epoxy and EGC). It should be noted that EGC coating was found to provide an excellent corrosion protection effect on cold-rolled steel (CRS) electrode. Enhancement of corrosion protection using EGC coatings could be attributed to the following three reasons: (1) epoxy could act as a physical barrier coating, (2) the hydrophobicity repelled the moisture and further reduced the water/corrosive media adsorption on the epoxy surface, preventing the underlying metals from corrosion attack, and (3) the well-dispersed graphene nanosheets (GNSs) embedded in HEGC matrix could prevent corrosion owing to a relatively higher aspect ratio than clay platelets, which enhances the oxygen barrier property of HEGC. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
