Txoj haujlwm ntawm ntub dej tus neeg sawv cev yog ua kom cov khoom siv tawv tau yooj yim dua wetted los ntawm dej. Los ntawm txo nws lub npoo nruj lossis cov dej sib cuam tshuam, dej tuaj yeem nthuav dav ntawm cov khoom siv cov khoom lossis nkag mus rau saum npoo, yog li kom cov khoom ntub.
Tus neeg sawv cev ntub dej yog lub surfactant uas tuaj yeem ua cov ntaub ntawv tawv tau yooj yim dua wetted los ntawm txo nws lub zog saum npoo. Cov neeg sawv cev ntub dej yog surfactants, uas yog muaj ntawm hydrophilic thiab lipophilic pawg. Thaum nyob rau hauv kev sib cuag nrog cov chaw nyob sab, cov pab laspophilic txuas rau hauv cov khoom ua kua, thiab cov kua dej txuas ntxiv ntawm cov chaw ruaj khov, uas yog qhov tseem ceeb ntawm ntub dej.
Tus neeg ntub dej, tseem hu ua tus tso, tuaj yeem ua cov ntaub ntawv tawv tau yooj yim dua wetted los ntawm dej. Nws yog feem ntau vim yog kev txo qis ntawm cov npoo nro lossis interfacial nro, kom dej tuaj yeem nthuav dav ntawm cov ntaub ntawv tawv lossis nkag mus rau hauv lawv lub npoo kom ntub lawv. Lub chaw ntub dej yog ntsuas los ntawm lub kaum sab xis ntub (lossis hu rau kaum). Qhov me me lub kaum sab xis ntub yog, qhov zoo dua cov kua dej ntub cov khoom nto. Cov kua dej sib txawv thiab cov khoom siv ntub dej kuj sib txawv. Siv hauv Textile, luam ntawv thiab dyeing, papermaking, tanning thiab lwm yam kev lag luam. Nws tseem siv nyob rau hauv kev npaj ntawm latx, raws li ib tug tshuaj tua kab Tus neeg sawv cev ntub dej tau siv hauv kev lag luam poturesCensitive khoom yuav tsum muaj cov koom haum ua kom siab thiab tshwj xeeb cov koom haum.
Lub sij hawm Post: Lub Yim Hli 03-2022