In the past few decades,inspired by the superhydrophobic surfaces(SHPS)of animals and plants such as lotus leaves,rose petals,legs of water striders,and wings of butterflies,preparing metal materials with metallic SHP...In the past few decades,inspired by the superhydrophobic surfaces(SHPS)of animals and plants such as lotus leaves,rose petals,legs of water striders,and wings of butterflies,preparing metal materials with metallic SHPS(MSHPS)have attracted great research interest,due to the great prospect in practical applications.To obtain SHPS on conventional metal materials,it is necessary to construct rough surface,followed by modification with low surface energy substances.In this paper,the action mechanism and the current research status of MSHPS were reviewed through the following aspects.Firstly,the model of wetting theory was presented,and then the progress in MSHPS preparation through chemical etching method was discussed.Secondly,the applications of MSHPS in self-cleaning,anti-icing,corrosion resistance,drag reduction,oil-water separation,and other aspects were introduced.Finally,the challenges encountered in the present application of MSHPS were summarized,and the future research interests were discussed.展开更多
In this study,a bioinspired hierarchical structure was formed with superomniphobicity on a 7075 aluminium alloy using laser ablation.The morphology and wetting characteristics of the biomimetic sample surface were cha...In this study,a bioinspired hierarchical structure was formed with superomniphobicity on a 7075 aluminium alloy using laser ablation.The morphology and wetting characteristics of the biomimetic sample surface were characterised using scanning electron microscopy,laser confocal microscopy,and contact angle measurements.The effect of the liquid properties and surface structures on the rolling behaviour was investigated.The results suggest that the fabricated biomimetic sample surface was a hierarchical structure.The prepared sample had superomniphobicity and low adhesion properties,and the contact angles of six different liquid droplets on the sample surface reached or approached 150°.Specifically,the largest contact angle was 152°,and the average rolling angle was 7.7°.This multi-hydrophobic surface provides a valuable reference for the research study and use of a variety of solid–liquid contacts.展开更多
基金the financial support of Shanghai Pujiang Program(22PJD001)the Scientific Research Project from Science and Technology Commission of Shanghai Municipality(19DZ1204903)the Fundamental Research Funds for the Central Universities(2232021G-11)。
文摘In the past few decades,inspired by the superhydrophobic surfaces(SHPS)of animals and plants such as lotus leaves,rose petals,legs of water striders,and wings of butterflies,preparing metal materials with metallic SHPS(MSHPS)have attracted great research interest,due to the great prospect in practical applications.To obtain SHPS on conventional metal materials,it is necessary to construct rough surface,followed by modification with low surface energy substances.In this paper,the action mechanism and the current research status of MSHPS were reviewed through the following aspects.Firstly,the model of wetting theory was presented,and then the progress in MSHPS preparation through chemical etching method was discussed.Secondly,the applications of MSHPS in self-cleaning,anti-icing,corrosion resistance,drag reduction,oil-water separation,and other aspects were introduced.Finally,the challenges encountered in the present application of MSHPS were summarized,and the future research interests were discussed.
基金National Natural Science Foundation of China,Grant/Award Numbers:51975060,U1937201Department of Science and Technology of Jilin Province,Grant/Award Number:JJKH20210810KJ。
文摘In this study,a bioinspired hierarchical structure was formed with superomniphobicity on a 7075 aluminium alloy using laser ablation.The morphology and wetting characteristics of the biomimetic sample surface were characterised using scanning electron microscopy,laser confocal microscopy,and contact angle measurements.The effect of the liquid properties and surface structures on the rolling behaviour was investigated.The results suggest that the fabricated biomimetic sample surface was a hierarchical structure.The prepared sample had superomniphobicity and low adhesion properties,and the contact angles of six different liquid droplets on the sample surface reached or approached 150°.Specifically,the largest contact angle was 152°,and the average rolling angle was 7.7°.This multi-hydrophobic surface provides a valuable reference for the research study and use of a variety of solid–liquid contacts.
