Qhov sib txawv tseem ceeb ntawm hydrophobic thiab superhydrophobic yog lawv lub kaum sab xis rau cov dej ntws. Lub kaum sab xis ntawm cov dej ntws ntawm cov dej hydrophobic yog ntau tshaj 90 degrees, yog li nws repels dej. Nyob rau hauv sib piv, lub kaum sab xis ntawm cov dej ntws ntawm ib tug superhydrophobic nto yog ntau tshaj li 150 degrees, uas ua rau tsis tau tsuas yog rau repelling dej tab sis kuj dov dej tawm ntawm qhov chaw.
Ob qhov chaw hydrophobic thiab superhydrophobic yog cov dej-repelling nto. Kev sib cuam tshuam ntawm hydrophobic piav qhia txog kev tawm tsam ntawm dej thiab lwm yam khoom, thaum superhydrophobic txhais tau tias khaus ntau dua li hydrophobic.
Hydrophobic yog dab tsi?
Kev sib cuam tshuam ntawm dej yog qhov kev tawm tsam ntawm cov dej molecules thiab lwm yam khoom. Nws yog hom kev sib cuam tshuam rau kev sib cuam tshuam ntawm hydrophilic (kev quab yuam ntawm dej molecules thiab lwm yam khoom). Hauv lo lus no, hydro" txhais tau tias "dej" thiab "phobic" txhais tau tias "kev ntshai". Yog li ntawd, peb tuaj yeem piav qhia txog cov khoom uas tsis nyiam dej ua cov tshuaj hydrophobic. Cov tshuaj no tshem tawm cov dej molecules. Feem ntau, cov molecules tsis-polar qhia hom kev sib cuam tshuam vim cov dej molecules yog polar. Hauv lwm lo lus, cov tshuaj hydrophobic nyiam nyiam los yog cuam tshuam nrog lossis yaj hauv cov khoom tsis muaj polar xws li roj thiab hexane.
Qee zaum, cov tshuaj hydrophobic hu ua lipophilic tshuaj vim tias cov tshuaj no nyiam cov lipid lossis rog. Thaum cov tshuaj hydrophobic ntxiv rau hauv dej, cov tshuaj molecules zoo li tsim pawg los ntawm kev sib xyaw ua ke. Qhov no ua rau cov kuab tshuaj hydrophobic tseem ceeb hauv kev sib cais cov tsis-polar tebchaw los ntawm cov dej los yog polar daws.
Superhydrophobic yog dab tsi?
Superhydrophobic kev sib cuam tshuam yog lub peev xwm los tua cov dej kom txog qib uas cov tee dej tsis flatten tab sis dov tawm. Nws tseem hu ua ultra-hydrophobicity. Superhydrophobic nto yog qhov chaw hydrophobic heev uas nyuaj heev rau ntub dej. Feem ntau, lub kaum sab xis ntawm lub tee dej ntawm qhov saum npoo no tshaj 150 degrees. Peb kuj tuaj yeem hu ua qhov kev sib cuam tshuam ntawm cov paj paj vim yog tus cwj pwm ntawm cov tee dej ntawm nplooj nplooj. Ib lub tee dej uas ua rau lub ntsej muag superhydrophobic tuaj yeem thim rov qab, zoo ib yam li lub pob elastic.
Lub kaum sab xis ntawm cov dej ntws ntawm qhov dej superhydrophobic tau piav qhia thawj zaug los ntawm Thomas Young hauv xyoo 1805. Nws tau ua qhov no los ntawm kev tshuaj xyuas lub zog uas ua rau cov kua dej uas tau so ntawm qhov chaw du uas nyob ib puag ncig. los ntawm gas.
Peb tuaj yeem pom cov piv txwv rau qhov chaw superhydrophobic hauv qhov xwm txheej, suav nrog cov nplooj nplooj, cov plaub hau zoo ntawm qee cov nroj tsuag, dej striders thiab kab uas nyob saum npoo dej, qee cov noog uas ua luam dej zoo, thiab lwm yam.
Qhov txawv ntawm Hydrophobic thiab Superhydrophobic yog dab tsi?
Ob qhov chaw hydrophobic thiab superhydrophobic yog cov dej-repelling nto. Qhov sib txawv tseem ceeb ntawm hydrophobic thiab superhydrophobic yog tias lub kaum sab xis ntawm cov dej ntws ntawm cov dej hydrophobic yog ntau tshaj 90 degrees, thaum lub kaum sab xis ntawm cov dej ntws ntawm cov dej superhydrophobic yog ntau tshaj 150 degrees. Yog li ntawd, qhov chaw hydrophobic tshem tawm cov dej, qhov chaw superhydrophobic tsis tsuas yog tawm dej tab sis kuj yob cov dej tawm ntawm lawv qhov chaw.
Cov hauv qab no infographic teev qhov sib txawv ntawm hydrophobic thiab superhydrophobic hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Hydrophobic vs Superhydrophobic
Kev sib cuam tshuam Hydrophobic yog kev tawm tsam ntawm cov dej molecules thiab lwm yam khoom. Superhydrophobic kev sib cuam tshuam yog lub peev xwm los tua cov dej mus rau qib uas cov tee dej tsis flatten tab sis dov tawm. Qhov sib txawv tseem ceeb ntawm hydrophobic thiab superhydrophobic yog tias lub kaum sab xis ntawm cov dej ntws ntawm cov dej hydrophobic yog ntau tshaj 90 degrees, thaum lub kaum sab xis ntawm cov dej ntws ntawm cov dej superhydrophobic yog ntau tshaj 150 degrees. Yog li ntawd, qhov chaw hydrophobic tshem tawm cov dej, qhov chaw superhydrophobic tsis tsuas yog tshem cov dej tab sis kuj yob cov dej tawm ntawm lawv qhov chaw.
