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| NPStudy on a Self-healing and Recyclable Coating Materials and Its Corrosion Resistances |
| Received:June 29, 2020 Revised:July 20, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.10.007 |
| KeyWord:Recyclable thermoplastic corrosion electromagnetic induction |
| Author | Institution |
| ZHANG Han-lu |
Unit 92228, People's Liberation Army, Beijing , China |
| LIN Wei |
School of New Energy and Materials, Southwest Petroleum University, Chengdu , China |
| WANG Hu |
School of New Energy and Materials, Southwest Petroleum University, Chengdu , China |
| ZHANG Hai-long |
College of Chemical and Chemical Engineering, Southwest Petroleum University, Chengdu , China |
| ZHANG Hai-bing |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Qingdao , China |
| HOU Jian |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute LSMRI, Qingdao , China |
| LIN Bing |
College of Chemical and Chemical Engineering, Southwest Petroleum University, Chengdu , China |
| WANG Ying-ying |
College of Chemical and Chemical Engineering, Southwest Petroleum University, Chengdu , China |
| TANG Jun-lei |
College of Chemical and Chemical Engineering, Southwest Petroleum University, Chengdu , China |
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| Abstract: |
| Recyclable coating materials were prepared, and the repairable and recyclable properties of the coating materials were studied. Ethyl cellulose, castor oil, mineral oil, etc. were used as the main raw materials to prepare the recyclable coating materials with the method of hot melt. The microstructure of the coating material was studied by Scanning electron microscope (SEM), X-ray diffractometer (XRD) and infrared spectroscopy (FT-IR). The electrochemical corrosion resistance (EIS), solution immersion test and neutral salt spray test were used to study the corrosion resistance of the coating materials. The self-made electromagnetic induction equipment was used to study the recycling performance of the coating material. The coating materials had magnetic response characteristics after adding Ni powder. When the Ni powder content reaches 15%, there was obvious agglomeration phenomenon, and the magnetic properties of the coating materials gradually increase with the increase of Ni. The coating materials containing 10% Ni powder had no change after immersion in 5% HCl solution for 28 days and neutral salt spray test for 10000 h. The coating materials properties and structure did not change after 20 cycles of hot melting under the action of an alternating magnetic field. Adding 10% Ni powder will not affect the structure and performance of the coating materials, while giving it better electromagnetic induction performance. The physical damage of the coating materials can be repaired by the action of the magnetic field. Because the coating materials is thermoplastic, it can be repaired and recycled many times. |
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