Ucwaningo lwe-Superhydrophobic Biomimetic Surfaces

Izakhiwo ezingaphezulu zezinto ezisetshenziswayo zibaluleke kakhulu, futhi abacwaningi bazama zonke izinhlobo zezindlela zokuthola izinto ezingaphezulu ezinezakhiwo ezidingekayo. Ngokuthuthuka kobunjiniyela be-bionic, abacwaningi banaka kakhulu indawo yebhayoloji ukuze baqonde ukuthi imvelo ingazixazulula kanjani izinkinga zobunjiniyela. Uphenyo olubanzi endaweni yebhayoloji luveze ukuthi lezi zindawo zinezinto eziningi ezingajwayelekile. I-"lotus-effect" yinto evamile eyenziwa yi-natural isakhiwo esingaphezulu njengepulani sisetshenziselwa ukuklama nokwenza izindawo ezingaphezulu zezinto zobunjiniyela. I-microstructure kanambambili yendawo ye-lotus inikeza i-super-hydrophobicity, engakwazi ukuzivumelanisa nezimo zemvelo kahle. Eminyakeni yamuva, i-superhydrophobic biomimetic surfaces zicutshungulwe kabanzi ngenxa yesidingo sezinto zokuzihlanza, i-micro-fluid device nokunye.

I-bio-inspired superhydrophobic surfaces ilungiswa ngezindlela eziningi ngokuya ngezimiso zomzimba nezamakhemikhali, njenge-lithography, indlela yesifanekiso, i-sublimation, izindlela ze-electrochemical, izindlela ze-lay-by-layer, indlela eya phansi phezulu yokwenziwa kwama-nano-array nokunye. . Kodwa-ke, abacwaningi bavamise ukwenza amafilimu e-hydrophobic ezintweni zensimbi nasezindaweni ezingaphili ngempahla yamakhemikhali ezinzile. Ngakho-ke, insimbi esebenzayo kanye ne-alloy surface yayo akuvamile ukuphenywa. I-Magnesium ingenye yezinto zobunjiniyela ezilula kakhulu. Ngakho-ke, kulindeleke ukuthi kusetshenziswe i-magnesium nama-alloys ayo emkhathini, ezindizeni, ezimotweni nasezintweni zikaloliwe.

I-hydrophobic coating ingaba ubuchwepheshe obuthembisayo bokuthuthukisa ukusebenza kwendawo. Jiang et al.[1] wakha i-super-hydrophobic biomimetic surface ku-alloy ye-Mg-Li ngokusebenzisa i-chemical etching, elandelwa ukucwiliswa kanye nezinqubo zokudonsa kusetshenziswa ama-molecule e-fluoroalkylsilane (FAS).Ngokufanayo, u-Ishizaki et al. [2] udale indawo engaphezulu kwe-hydrophobic ku-alloy ye-magnesium ngokucwiliswa ku-cerium nitrate aqueous solution (20 min). Jun et al. [3] udale indawo ezinzile ye-biomimetic super-hydrophobic ku-magnesium alloy eyenziwe nge-microarc oxidation pretreatment futhi ilandelwa ukuguqulwa kwamakhemikhali okusekelwe kumphumela welotus. Li et al. [4] ulungise amafilimu amancanyana e-magnesium nge-bias magnetron sputtering.

I-Superhydrophobic Biomimetic
[1] U-Liu KS, u-Zhang ML, u-Zhai J, et al. Ukwakhiwa kwe-Bioinspired yezindawo ze-Mg-Li alloys ezine-superhydrophobicity ezinzile kanye nokumelana nokugqwala okuthuthukisiwe. I-Appl Phys Lett, 2008, 92: 183103
[2] U-Ishizaki T, u-Saito N. Ukwakheka okushesha kwe-superhydrophobic surface ku-magnesium alloy ehuqwe ngefilimu ye-cerium oxide ngenqubo yokucwiliswa elula ekamelweni lokushisa kanye nokuzinza kwayo kwamakhemikhali. Langmuir, 2010, 26: 9749-9755
[3]Jun LA, Guo ZG, Fang J, et al. Ukwenziwa kwe-superhydrophobic surface ku-magnesium alloy. UChem Lett, 2007, 36: 416-417
[4]Xiang X, Fan GL, Fan J, et al. Ifilimu ye-magnesium ferrite enezimbobo kanye ne-superparamagnetic eyenziwe ngomzila owandulelayo. J Alloy Comp, 2010, 499: 30–34.