Haʻawina o Superhydrophobic Biomimetic Surfaces

He mea koʻikoʻi ka waiwai o ka ʻili o nā mea, a ke hoʻāʻo nei nā mea noiʻi i nā ʻano hana āpau e kiʻi i nā ʻili o nā mea me nā waiwai pono. Me ka hoʻomohala ʻana o ka ʻenekinia bionic, ke hoʻonui nei ka poʻe noiʻi i ka nānā ʻana i ka ʻili ola i mea e hoʻomaopopo ai pehea e hiki ai i ke ʻano ke hoʻoponopono i nā pilikia ʻenekinia. Ua hōʻike ʻia nā noiʻi nui ma luna o nā ʻili ola ola he nui nā ʻano mea maʻamau o kēia mau ʻili. ʻO ka "lotus-effect" kahi mea maʻamau i ka natural hoʻohana ʻia ka hoʻolālā ʻili no ka hoʻolālā ʻana a me ka hana ʻana i nā mea ʻenekinia. ʻO ka microstructure binary o ka papa lotus e hāʻawi i ka super-hydrophobicity, hiki ke hoʻololi maikaʻi i nā kūlana kaiapuni. I nā makahiki i hala iho nei, ʻo ka superhydrophobic biomimetic surfaces ua aʻo nui ʻia ma muli o ka pono o nā mea hoʻomaʻemaʻe ponoʻī, nā mea micro-fluid a me nā mea ʻē aʻe.

Hoʻomākaukau ʻia nā ʻaoʻao superhydrophobic bio-inspired e nā ʻano he nui e like me nā loina kino a me nā kemika, e like me ka lithography, ke ʻano template, sublimation, nā ʻano electrochemical, nā ʻano layer-by-layer, ke ala i lalo no ka hana ʻana i nā nano-arrays a pēlā aku. . Eia nō naʻe, hana maʻamau ka poʻe noiʻi i nā kiʻiʻoniʻoni hydrophobic ma luna o nā mea metala a me nā ʻili o nā mea inorganic me ka waiwai kemika paʻa. No laila, ʻaʻole i ʻimi pinepine ʻia ka metala reactive a me ko lākou mau ʻili huila. ʻO Magnesium kekahi o nā mea ʻenehana māmā loa. No laila, ua manaʻo ʻia e hoʻohana ʻia ka magnesium a me kāna mau alloys i ka aerospace, mokulele, kaʻa, a me nā noi kaʻaahi.

ʻO kahi uhi hydrophobic kahi ʻenehana hoʻohiki no ka hoʻomaikaʻi ʻana i ka hana o ka ʻili. Jiang et al.[1] hana i ka super-hydrophobic biomimetic ili ma luna o ka Mg-Li huila ma o kemika etching, ukali e ka immersion a me annealing kaʻina hana me ka fluoroalkylsilane (FAS) mole. [2] hana i ka super-hydrophobic ili ma luna o ka magnesium alloy ma o ka hoʻokomo 'ia i loko o ka cerium nitrate aqueous solution (20 min). Jun et al. [3] hana i kahi biomimetic super-hydrophobic paʻa ma luna o ka magnesium alloy i hana ʻia e ka microarc oxidation pretreatment a ukali ʻia e ka hoʻololi kemika e pili ana i ka hopena lotus. Li et al. [4] hoʻomākaukau i nā kiʻiʻoniʻoni lahilahi magnesium ma o ka hoʻoheheʻe ʻana i ka magnetron sputtering.

Superhydrophobic Biomimetic
[1] Liu KS, Zhang ML, Zhai J, et al. ʻO ke kūkulu ʻia ʻana o ka bioinspired o Mg-Li alloys surfaces me ka superhydrophobicity paʻa a hoʻomaikaʻi i ka pale ʻana i ka corrosion. Appl Phys Lett, 2008, 92: 183103
[2] ʻO Ishizaki T, Saito N. Hoʻokumu wikiwiki ʻia kahi ʻili superhydrophobic ma luna o kahi huila magnesium i uhi ʻia me kahi kiʻi ʻoniʻoni cerium oxide e kahi kaʻina hoʻoinu maʻalahi ma ka lumi wela a me kona kūpaʻa kemika. Langmuir, 2010, 26: 9749–9755
[3] Jun LA, Guo ZG, Fang J, a me al. Ka hana ʻana o ka ʻili superhydrophobic ma ka magnesium alloy. Chem Lett, 2007, 36: 416–417
[4] Xiang X, Fan GL, Fan J, a me al. ʻO ke kiʻiʻoniʻoni magnesium ferrite porous a superparamagnetic i hana ʻia ma ke ala mua. J Alloy Comp, 2010, 499: 30–34.