Ka'idar Hydrophobic/Super Hydrophobic Coatings

An shirya suturar sol-gel na al'ada ta amfani da MTMOS da TEOS azaman silane precursors don samar da santsi, bayyananniyar hanyar sadarwa ta kwayoyin halitta / inorganic akan madaidaicin alloy na aluminum. Irin waɗannan nau'ikan an san su da kyakkyawan mannewa saboda ikon su na samar da haɗin gwiwar Al-O-Si a madaidaicin shafi / substrate.
Samfurin-II a cikin wannan binciken yana wakiltar irin wannan suturar sol-gel ta al'ada. Domin rage makamashin sararin samaniya, kuma saboda haka ƙara yawan hydrophobicity, mun haɗa wani organo-silane mai dauke da sarkar fluorootyl, ban da MTMOS da TEOS (samfurin A). Sarƙoƙin Alkyl da ke ɗauke da atom ɗin fluorine an san su don samar da ingantaccen hydrophobicity. Irin waɗannan sarƙoƙi, lokacin da aka haɗa su zuwa cibiyar sadarwar polymer ta hanyar haɗin gwiwar siloxane masu sassauƙa, za su kasance da hali don daidaitawa a farfajiyar kuma saboda haka rage yawan makamashi na rufin, kamar yadda aka nuna a cikin Hoto 1. Tun da dukiyar hydrophobic ya dogara ba kawai a kan sinadarai ba. na farfajiyar, amma kuma yanayin fina-finai yana rinjayar shi, mun yi ƙoƙari don samar da sutura tare da nau'i daban-daban na yanayin zafi. A cikin samfuran B da C, an haɗa ƙwayoyin micro da nanosilica, bi da bi, don ƙirƙirar ƙaƙƙarfan yanayi wanda zai haɓaka hydrophobicity. An yi amfani da amfani da microparticles (samfurin B) da micro + nanoparticles (samfurin C) don fahimtar tasirin daidaitawar irin wannan barbashi a saman, sabili da haka, sakamakon hydrophobicity.

Hoto na 2 yana nuna maƙasudin ƙirƙira na zane-zanen saman da aka ɗauka na rufi tare da kuma ba tare da nano/microparticles ba, da kusurwar hulɗar ruwan su akan irin waɗannan saman.