| WANG Qing-guo,WANG Kai,WANG Sha-sha.Popularization and Application of Graphene Membrane in Automotive Corrosion Prevention[J],46(4):138-142 |
| Popularization and Application of Graphene Membrane in Automotive Corrosion Prevention |
| Received:October 17, 2016 Revised:April 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.04.023 |
| KeyWord:graphene film coating agent film formation green environmental protection automotive anti-corrosion |
| Author | Institution |
| WANG Qing-guo |
Technology Center of Shaanxi Automotive Holdings Group Co., Ltd, Xi'an , China |
| WANG Kai |
Technology Center of Shaanxi Automotive Holdings Group Co., Ltd, Xi'an , China |
| WANG Sha-sha |
Technology Center of Shaanxi Automotive Holdings Group Co., Ltd, Xi'an , China |
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| Abstract: |
| The work aims to select novel environment-friendly metal anticorrosive pretreatment material to replace the non-environmental membrane such as phosphating solution and passivation solution, silane film and ceramic film products of poor stability and corrosion resistance. Since environment-friendly phytate-based compounds (cyclohexyl alcohol phosphate) could produce self-assembled monolayer on metal surface easily, a new generation of green, competitive, easy-to-handle and excellent revolutionary material—graphene membrane could be developed provided with additives including appropriate catalyst, passivator and modified graphene nano-additives after modification. Heavy truck metal parts were taken as substrate of forming graphene membrane film. Morphology, hardness, thickness and corrosion resistance of the coating were investigated and compared with that of pre-treated ceramic membrane and phosphating film. The uniform film and good adhesion made the outer coating equivalent or superior to the phosphating film, silane film and ceramic film products in respect of technical indicators including metal corrosion resistance, aging resistance, impact resistance without producing precipitate and waste residue. The graphene film is excellent and the film is environmentally friendly, worthy of popularization and application. |
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