Dab tsi yog cov khoom ntawm surfactants?

Txo cov npoo sab nro

Txo thaj npoo yog qhov ua haujlwm tseem ceeb tshaj plaws ntawmsurfactantsCov. Muaj macroscopic nro nyob rau hauv lub txheej saum npoo ntawm cov kua uas ua rau cov kua saum toj kom tsawg li ntau tau, uas yog qhov nro. Tom qab ntxiv surfactants, surfactants ua zaj duab xis nyias nyob rau saum npoo ntawm cov kua, hloov cov molecular kev ua kua ntawm cov kua ua kua, yog li txo lub nro.

Tsim Micelles

Micelles xa mus rau cov lus sau ua ke ntawm cov lwg me uas pib tsim hauv cov tshuaj uas muaj ntau dua tom qab surfactant concentration ncav cuag ib tus nqi.

Surfactants yog yaj hauv dej. Thaum lawv qhov kev xav tau tsawg, lawv tau tawg ua ib qho molecules lossis adsorbed nyob rau saum npoo ntawm kev daws teeb meem los txo cov nro. Thaum cov concentration ntawm surfactants nce mus rau qhov chaw ntawm txoj kev daws teeb meem yog txaus siab thiab tsis tuaj yeem adsorbed lawm, cov lwg me me ntawm covsurfactantsPib tsiv mus rau sab hauv ntawm txoj kev daws teeb meem. Vim tias lub hydrophobic ib feem ntawm cov surfactant molecule muaj ib qho me me, thaum muaj qee qhov kev xav tau thiab ua ke los tsim lub cev ua ke, yog qhov tseeb micelles. Micelles muaj ntau cov duab, xws li spherical, lamellar, thiab pas nrig.