Surfactantsyog cov khoom uas muaj cov qauv tshuaj tshwj xeeb thiab tau siv dav hauv kev lag luam tshuaj pleev ib ce. Lawv ua hauj lwm pab cov khoom xyaw hauv cov tshuaj pleev ib ce - txawm tias siv me me, lawv ua lub luag haujlwm tseem ceeb. Surfactants muaj nyob rau hauv feem ntau cov khoom, nrog rau lub ntsej muag cleansers, moisturizing lotions, daim tawv nqaij cream, tshuaj zawv plaub hau, conditioners, thiab tshuaj txhuam hniav. Lawv cov dej num hauv cov tshuaj pleev ib ce muaj ntau haiv neeg, feem ntau suav nrog emulsification, ntxuav, foaming, solubilization, antibacterial action, antistatic los, thiab dispersion. Hauv qab no, peb nthuav dav lawv plaub lub luag haujlwm tseem ceeb:
(1) Emulsification
emulsification yog dab tsi? Raws li peb paub, cov tshuaj pleev ib ce thiab tshuaj pleev ib ce peb feem ntau siv hauv kev tu tawv nqaij muaj ob qho tib si oily Cheebtsam thiab dej ntau - lawv yog cov roj thiab dej sib xyaw. Txawm li cas los xij, vim li cas peb thiaj tsis pom cov roj tee dej lossis cov dej ntws los ntawm qhov muag liab qab? Qhov no yog vim hais tias lawv tsim ib tug heev uniform dispersed system: cov oily Cheebtsam yog sib npaug zos faib raws li me me tee dej nyob rau hauv dej, los yog dej yog sib npaug zos dispersed raws li me me droplets nyob rau hauv cov roj. Lub qub yog hu ua roj-hauv-dej (O / W) emulsion, thaum lub tom kawg yog dej-hauv-roj (W / O) emulsion. Cov tshuaj pleev ib ce ntawm hom no yog hu ua emulsion-based tshuaj pleev ib ce, feem ntau ntau yam.
Nyob rau hauv ib txwm muaj xwm txheej, roj thiab dej yog immiscible. Thaum stirring nres, lawv sib cais rau hauv cov khaubncaws sab nraud povtseg, tsis tsim ib tug ruaj khov, uniform dispersion. Txawm li cas los xij, nyob rau hauv cov tshuaj pleev ib ce thiab cov tshuaj pleev ib ce (cov khoom siv emulsion), cov khoom oily thiab aqueous tuaj yeem tsim kom muaj kev sib xyaw ua ke zoo, zoo sib xws ua tsaug rau qhov sib ntxiv ntawm surfactants. Cov qauv tshwj xeeb ntawm surfactants tso cai rau cov khoom siv tsis sib haum xeeb los sib xyaw ua ke, tsim kom muaj qhov sib txawv ntawm qhov sib txawv - xws li, ib qho emulsion. Qhov kev ua haujlwm ntawm surfactants hu ua emulsification, thiab cov surfactants uas ua lub luag haujlwm no yog hu ua emulsifiers. Yog li, surfactants muaj nyob rau hauv cream thiab tshuaj pleev ib ce peb siv txhua hnub.
(2) Cleansing thiab Foaming
Qee cov surfactants qhia tau zoo heev ntxuav thiab foaming zog. Cov xab npum, ib qho piv txwv zoo, yog ib hom kev siv surfactant. Cov xab npum da dej thiab cov xab npum xab npum tso siab rau lawv cov tshuaj xab npum (surfactants) kom ua tiav kev ntxuav thiab ua npuas dej. Qee cov tshuaj ntxuav lub ntsej muag kuj siv cov tshuaj xab npum los ntxuav. Txawm li cas los xij, xab npum muaj zog ntxuav, uas tuaj yeem hle tawv nqaij ntawm nws cov roj ntuj thiab tej zaum yuav ua rau khaus me ntsis, ua rau nws tsis haum rau cov tawv nqaij qhuav lossis rhiab heev.
Tsis tas li ntawd, cov gels da dej, tshuaj zawv plaub hau, tshuaj ntxuav tes, thiab tshuaj txhuam hniav tag nrho tso siab rau surfactants rau lawv cov kev ntxuav thiab ua npuas dej.
(3) Solubilization
Surfactants tuaj yeem ua rau kom cov dej solubility ntawm cov tshuaj uas tsis zoo los yog tsis zoo hauv dej, ua rau lawv yaj tag thiab tsim cov tshuaj pob tshab. Qhov kev ua haujlwm no hu ua solubilization, thiab cov surfactants uas ua nws yog hu ua solubilizers.
Piv txwv li, yog hais tias peb xav ntxiv ib tug heev moisturizing oily tivthaiv rau ib tug ntshiab toner, cov roj yuav tsis yaj nyob rau hauv dej tab sis yuav es tsis txhob ntab li me me tee rau ntawm qhov chaw. Los ntawm leveraging cov nyhuv solubilizing ntawm surfactants, peb tuaj yeem sib xyaw cov roj rau hauv lub toner, uas ua rau pom tseeb, pob tshab. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov roj uas tuaj yeem yaj tau los ntawm kev solubilization yog txwv - cov khoom loj dua yog qhov nyuaj rau kev yaj hauv dej. Yog li ntawd, raws li cov roj cov ntsiab lus nce, tus nqi ntawm surfactant kuj yuav tsum tau nce mus rau emulsify cov roj thiab dej. Qhov no yog vim li cas qee cov toners tshwm opaque los yog mis nyuj dawb: lawv muaj ntau dua ntawm cov roj moisturizing, uas cov surfactants emulsify nrog dej.
Post lub sij hawm: Nov-11-2025