Developing polydopamine modified molybdenum disulfide/epoxy resin powder coatings with enhanced anticorrosion performance and wear resistance on magnesium lithium alloys  被引量:5

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作  者:Shibo Chen Changqing Yin Yi Wang Shuang Yi Xiang Gao Xujuan Zhang Qiyu Liao Yuxin Zhang Xia Zhao Jinsong Rao Baorong Hou 

机构地区:[1]School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China [2]College of Material Science and Engineering,Chongqing University,Chongqing 400044,China [3]Pilot National Laboratory for Marine Science and Technology,Open Studio for Marine Corrosion and Protection,Qingdao 266237,China [4]Weifang East Steel Pipe Co.LTD.,Weifang 261055,China [5]College of Mechanical and Vehicle Engineering,Chongqing University,Chongqing 400044,China [6]China Academy of Space Technology(Xi’an),Xi’an 710100,China [7]State Key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing 400044,China

出  处:《Journal of Magnesium and Alloys》2022年第9期2534-2545,共12页镁合金学报(英文)

基  金:financial support provided by the National Natural Science Foundation of China(Grant No.U1806225);the National Natural Science Foundation of China(Grant No.51908092);the Joint Funds of the National Natural Science Foundation of China-Guangdong(Grant No.U1801254)。

摘  要:Epoxy resin powder coating has been successfully applied on the corrosion protection of magnesium lithium alloys.However,poor wear resistance and microcracks formed during the solidification have limited it extensive application.There are limited approaches to exploit such anti-corrosion and mechanical properties of magnesium lithium alloys.Herein,the epoxy resin powder coating with polydopamine modified molybdenum disulfide(MoS_(2)@PDA-EP powder coating with 0,0.1,0.2,0.5,1.0 wt.%loading)was well prepared by melt extrusion to investigate its anticorrosion performance and wear resistance.The results revealed that the addition of MoS_(2)@PDA enhanced the adhesion strength between coatings and alloys,wear resistance and corrosion protection of the powder coatings.Among them,the optimum was obtained by 0.2 wt.%MoS_(2)@PDA-EP powder coating which could be attributed to well dispersion and efficient adhesion with coating matrix.To conclude,MoS_(2)@PDA-EP powder coating is meaningfully beneficial for the anticorrosive and wear performance improvement of magnesium lithium alloys.

关 键 词:Magnesium lithium alloys Epoxy resin powder coating Molybdenum disulfide POLYDOPAMINE Anticorrosion performance Wear resistance 

分 类 号:TG174.4[金属学及工艺—金属表面处理] TQ637[金属学及工艺—金属学]

 

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