Nyob rau hauv colloidal thiab nto chemistry, qhov tseem ceeb micelle concentration (CMC) yog txhais raws li lub concentration ntawm surfactants saum toj no uas micelles tsim thiab tag nrho cov surfactants ntxiv rau lub system yuav tsim micelles. CMC yog tus yam ntxwv tseem ceeb ntawm surfactant.
Yuav ua li cas rau cov molecules surfactant ntawm qhov tseem ceeb micelle concentration?
Nyob rau hauv colloidal thiab nto chemistry, qhov tseem ceeb micelle concentration yog txhais raws li qhov concentration saum toj no uas micelles tsim. … Thaum qhov chaw nkag mus, qhov sib ntxiv ntawm cov surfactant molecules yuav ua rau tsim cov micelles. Cov ntsiab lus concentration no yog hu ua qhov tseem ceeb micelle concentration [187].
Dab tsi hloov pauv ntawm qhov tseem ceeb micelle concentration?
Qhov kev xav no raug xa mus rau qhov tseem ceeb micelle concentration (CMC) (Daim duab 1). Hauv qab ntawm CMC micelles tsis nyob thiab qhov nro ntawm cov tshuaj txo qis thiab osmotic siab nce nrog kev nce hauv surfactant.
Puas yog micelle yog surfactant?
Piv txwv li daim ntawv micelles uas muaj ntau pawg surfactant molecules uas tiv thaiv lawv cov saw hlau uas tsis yog-polar los ntawm ib puag ncig aqueous theem nrog lawv pawg polar taub hau (saib daim duab 3). … Qhov tseem ceeb micelle concentration CMC yog cov surfactant concentration ntawm thiab saum toj no uas micelles yogformed.
YPuas yog dej yog surfactant?
Lo lus 'surfactant' yog luv luv rau 'tus neeg ua haujlwm saum npoo av'. Surfactants txo cov zog ntuj uas tshwm sim ntawm ob theem xws li huab cua thiab dej (qhov nro) los yog roj thiab dej (interfacial nro) thiab, nyob rau hauv qhov kawg, pab kom lawv ua ke.
