| LI Lei,LIU Xiao-ling,CAO Lei,GUO Guang-fu.Preparation and Performance of Bionic Cooperative Antifouling Coating[J],50(6):161-168 |
| Preparation and Performance of Bionic Cooperative Antifouling Coating |
| Received:August 12, 2020 Revised:September 24, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.06.016 |
| KeyWord:bionic synergistic effects surface micro-texture PSO exudation rate mechanical properties antibacterial properties |
| Author | Institution |
| LI Lei |
School of Mechanicaland Automotive Engineering, Qingdao University of Technology, Qingdao , China |
| LIU Xiao-ling |
School of Mechanicaland Automotive Engineering, Qingdao University of Technology, Qingdao , China |
| CAO Lei |
School of Mechanicaland Automotive Engineering, Qingdao University of Technology, Qingdao , China |
| GUO Guang-fu |
School of Mechanicaland Automotive Engineering, Qingdao University of Technology, Qingdao , China |
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| Abstract: |
| To prepare a marine antifouling coating with bionic synergistic effects, low surface energy, bionics, and nano-particle antifouling technologies were combined. The silicon plate with negative morphology was processed by photolithography. The low surface energy material polydimethylsiloxane (PDMS) was used as the matrix, and nanometer ZnO, imitation antifouling agent phenyl methyl silicone oil (PSO) and the curing agent, dispersant and other auxiliary agents were added to obtain a marine antifouling coating with a micron-scale micro-texture bionic synergistic effect on the surface. The surface morphology and element distribution of the coating were observed by scanning electron microscope and X-ray energy spectrum analysis. The exudation rate of PSO in the coating was observed and measured by stereo microscope and infrared spectrometer. The mechanical properties were studied by tensile test, the apparent properties of the coating was studied by contact angle and hardness test, and the antifouling properties of the coating was studied by antibacterial experiment. The results show that the surface of the coating has a regular and complete micron-level texture. With the addition of PSO and nanometer-ZnO, the hydrophobic and mechanical properties of the coating are significantly improved. The coating with 10% ZnO content has the best mechanical properties and antifouling agent. The synergistic antifouling coating with cylindrical texture on the surface has the best anti-bacterial adhesion effect, and its bacterial adhesion rate is reduced by 90%. The bionic synergistic antifouling coating has better antifouling effect than the single-principle antifouling coating.The addition of nanometer-ZnO regulates the exudation rate of the antifouling agent PSO, and prolongs the service life of thecoating, moreover,the coating will not pollute the environment, and has a good development prospect. |
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