| CAO Jing-yi,ZHANG Hai-yong,YANG Wen-jing,CHEN Rong-rong,LIU Jing-yuan,WANG Jun.Preparation and Properties of KCC-1/PVDF Superhydrophobic and Ultra-slip Surfaces[J],49(6):152-158 |
| Preparation and Properties of KCC-1/PVDF Superhydrophobic and Ultra-slip Surfaces |
| Received:July 03, 2019 Revised:June 20, 2020 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2020.06.018 |
| KeyWord:superhydrophobic ultra-slip KCC-1 PVDF corrosion resistance anti-icing |
| Author | Institution |
| CAO Jing-yi |
1.Unit 92228, People’s Liberation Army, Beijing , China |
| ZHANG Hai-yong |
1.Unit 92228, People’s Liberation Army, Beijing , China |
| YANG Wen-jing |
2.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China |
| CHEN Rong-rong |
2.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China |
| LIU Jing-yuan |
2.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China |
| WANG Jun |
2.School of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin , China |
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| Abstract: |
| The work aims to prepare KCC-1/PVDF superhydrophobic coatings by incorporating silica (KCC-1) microspheres into polyvinylidene fluoride (PVDF) and then prepare ultra-slip coatings by using different coating modifiers on this basis. KCC-1 microspheres were synthesized by calcination with cetylpyridinium bromide as a template and dispersed in polyvinylidene fluoride (PVDF) solution to prepare KCC-1/PVDF coating on the surface of magnesium alloy. Then, the surface of KCC-1/PVDF coating was modified with different modifiers (PFOTES, HDTES and dimethicone). After the modification with HDTES, a superhydrophobic coating with a water contact angle of 155° was obtained. Added with dimethicone, an ultra-slip surface with a sliding angle of 4.5° was obtained. In the friction and wear test, the wear resistance of the ultra-slip surface was better than that of the superhydrophobic surface and the blank magnesium alloy. The results of the anti-icing experiment showed that the superhydrophobic and ultra-slip surfaces could effectively delay the freezing of droplets on the surface. The KCC-1/PVDF superhydrophobic and ultra-slip surfaces can effectively protect the magnesium alloy substrate and the ultra-slip coating is superior to the superhydrophobic coating in corrosion resistance, of which the corrosion inhibition efficiency IE% is 100% and 98.28%, respectively. |
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