Eminyakeni yamuva nje, abacwaningi bathole ukuthi izinhlayiya ze-micro-nano njengezithasiselo zokuthambisa zingathuthukisa izinto zokuthambisa, uketshezi olunamazinga aphansi okushisa kanye nezakhiwo zokulwa nokugqoka. Okubalulekile ukuthi uwoyela wokuthambisa ofakwe ngezinhlayiya ze-micro-nano awuselona nje ukwelashwa okulula kokuthambisa kukawoyela kunqubo yokuthambisa, kepha ukuthuthukisa umphumela wokuthambisa ngokushintsha isimo sokungqubuzana phakathi kwezimbili zombili zokungqubuzana ngesikhathi sokushayisana inqubo. Ukuthuthukiswa kwezithasiselo kunezincazelo ezibalulekile. Ngezithasiselo eziqinile, umumo oyindilinga ngokungangabazeki uyisimo esinengqondo kunazo zonke, esingabona ushintsho kusuka ekuqedeni ukungqubuzana kuya ekushayaneni kokugoqana, ngaleyo ndlela kuncishiswe ukungqubuzana nokugqoka okungaphezulu kakhulu. Ngokuya ngezindlela ezahlukahlukene zokuthambisa zokuthambisa izithasiselo zikawoyela, lesi sihloko ikakhulukazi sibuyekeza izindlela zokulungiselela zezinhlayiyana eziyindilinga eminyakeni yamuva kanye nokusetshenziswa kwazo njengezithambisi zikawoyela, futhi kufingqa izindlela eziphambili zokulwa nokugqoka nokungqubuzana.
Ukulungiselela indlela eyindilinga micro-nano kuyizinhlayiyana okufakiwe
Kunezindlela eziningi zokulungiselela izengezo zezinhlayiyana eziyindilinga eziyindilinga. Izindlela zendabuko zifaka phakathi indlela ye-hydrothermal, indlela yezulu yamakhemikhali, indlela ye-sol-gel, kanye nendlela ye-laser irradiation evelayo eminyakeni yamuva. Izinhlayiya ezikhiqizwa izindlela ezahlukahlukene zokulungiselela zinezakhiwo ezihlukile, ukwakheka nezakhiwo, ngakho-ke izakhiwo zokuthambisa ezikhonjisiwe njengezithasiselo ze-lubricant nazo zihlukile
I-Hydrothermal
Indlela ye-hydrothermal iyindlela yokuhlanganisa izinto ezingaphansi kwe-micron ngokufudumeza nokucindezela uhlelo lokuphendula esitsheni esithile sokucindezela esivaliwe ngesisombululo samanzi njengendawo yokuphendula, nokwenza ukusabela kwe-hydrothermal endaweni eshisa kakhulu futhi enomfutho ophakeme. Indlela ye-hydrothermal isetshenziswa kabanzi ngenxa yempuphu yokwenziwa enhle ne-morphology elawulwayo. Xie et al. kusebenzise indlela ye-hydrothermal synthesis ukuguqula ngempumelelo i-Zn + ibe yi-Zn0 endaweni ene-alkaline.Izivivinyo zikhombisile ukuthi ukwengeza i-organic additive triethanolamine (TEA) nokulungisa ukugxila kungalawula i-morphology yezinhlayiya ze-zinc oxide, ikwenze kusuka kusiyingi esincane. Umumo oyindilinga uba isimo se-quasi-spherical. I-SEM ikhombisa ukuthi izinhlayiya ze-Zn zihlakazeke ngendlela efanayo, ngosayizi wezinhlayiyana olinganiselwa ku-400m. Indlela ye-hydrothermal kulula ukwethula ukungcola okufana nezithasiselo ngesikhathi senqubo yokuhlanganisa, okwenza umkhiqizo ungangcoli futhi kudinga indawo yokushisa ephezulu nengcindezi ephezulu, encike kakhulu kwimishini yokukhiqiza.
Ukulungiswa kwezinhlayiya eziyindilinga ze-micro-nano kanye nomshini wazo wokuthambisa njengezithasiselo ze-lubricant. , Umshini wokuqala wokuthambisa wokuthambisa ngokungeza izinhlayiya ezincane ukuguqula ukungqubuzana okuslayidayo kube ukungqubuzana okugingqikayo, okuwumphumela wokuthwala okuncane, okunciphisa ngempumelelo ukungqubuzana nokugqoka.
Isikhathi Iposi: Dec-25-2020