Phunziro la Superhydrophobic Biomimetic Surfaces

Zomwe zili pamwamba pazida ndi zofunika kwambiri, ndipo ofufuza amayesa njira zosiyanasiyana kuti apeze zinthu zomwe zili ndi zinthu zofunika. Ndi chitukuko cha uinjiniya wa bionic, ofufuza akuyang'ana kwambiri zachilengedwe kuti amvetsetse momwe chilengedwe chimatha kuthana ndi mavuto a uinjiniya. Kafukufuku wozama pazachilengedwe awonetsa kuti malowa ali ndi zinthu zambiri zachilendo. "Lotus-effect" ndizochitika zomwe chilengedwe chimachitaral kapangidwe kapamwamba ngati pulani imagwiritsidwa ntchito popanga ndi kupanga zinthu zaukadaulo. Kapangidwe kakang'ono kakang'ono ka lotus pamwamba kumapereka super-hydrophobicity, yomwe imatha kusintha bwino chilengedwe. M'zaka zaposachedwa, superhydrophobic biomimetic pamwambas aphunziridwa mozama chifukwa cha kufunikira kwa zinthu zodzitchinjiriza, chipangizo cha microfluid ndi zina.

Ma bio-inspired superhydrophobic surfaces amakonzedwa ndi njira zambiri molingana ndi mfundo zakuthupi ndi zamankhwala, monga lithography, njira ya template, sublimation, njira zama electrochemical, njira zosanjikiza ndi zosanjikiza, njira yapansi-mmwamba yopanga ma nano-arrays ndi zina zotero. . Komabe, ofufuza nthawi zambiri amapanga mafilimu a hydrophobic pazitsulo zachitsulo ndi zinthu zakuthupi zomwe zimakhala ndi mankhwala okhazikika. Chifukwa chake, zitsulo zogwira ntchito ndi ma alloy ake safufuzidwa kawirikawiri. Magnesium ndi imodzi mwazinthu zopepuka zaukadaulo. Chifukwa chake, zikuyembekezeka kuti magnesium ndi ma alloys ake azigwiritsidwa ntchito muzamlengalenga, ndege, magalimoto, ndi njanji.

Kupaka kwa hydrophobic kungakhale ukadaulo wodalirika wowongolera magwiridwe antchito apamwamba. Jiang et al. [1] anapanga super-hydrophobic biomimetic pamwamba pa aloyi ya Mg-Li kudzera mu etching ya mankhwala, kutsatiridwa ndi kumizidwa ndi njira zochepetsera pogwiritsa ntchito mamolekyu a fluoroalkylsilane (FAS). Mofananamo, Ishizaki et al. [2] adapanga super-hydrophobic pamwamba pa aloyi ya magnesium pomizidwa mu cerium nitrate aqueous solution (20 min). Jun et al. [3] adapanga chokhazikika cha biomimetic super-hydrophobic pamwamba pa magnesium alloy yopangidwa ndi microarc oxidation pretreatment ndikutsatiridwa ndi kusinthidwa kwa mankhwala kutengera zotsatira za lotus. Li et al. [4] anakonza mafilimu oonda a magnesium ndi bias magnetron sputtering.

Superhydrophobic Biomimetic
[1] Liu KS, Zhang ML, Zhai J, et al. Kumanga kwa bioinspired kwa ma alloys a Mg-Li okhala ndi superhydrophobicity yokhazikika komanso kukana kwa dzimbiri. Appl Phys Lett, 2008, 92: 183103
[2] Ishizaki T, Saito N. Mapangidwe ofulumira a superhydrophobic pamwamba pa magnesium alloy yokutidwa ndi filimu ya cerium oxide ndi njira yosavuta yomiza pa kutentha kwa chipinda ndi kukhazikika kwake kwa mankhwala. Langmuir, 2010, 26: 9749-9755
[3] Jun LA, Guo ZG, Fang J, et al. Kupanga superhydrophobic pamwamba pa magnesium alloy. Chem Lett, 2007, 36:416-417
[4] Xiang X, Fan GL, Fan J, et al. Kanema wa porous ndi superparamagnetic magnesium ferrite wopangidwa kudzera panjira yoyambira. J Alloy Comp, 2010, 499: 30-34.