Ethyl cellulose (EC) yog kev hloov kho cellulose tau siv hauv cov tshuaj pleev ib ce, cov khoom noj, khoom noj txhua hnub, tshwj xeeb nyob rau hauv cov xab npum ua txhua hnub. Ua kua xab npum yog cov khoom siv tu kom huv, tsuas yog sib xyaw ntawm surfactants, dej thiab qee cov thickenizers thiab lwm yam khoom xyaw. Txhawm rau kom nce viscosity ntawm cov kua xab npum, txhim kho qhov kev xav ntawm kev siv thiab txhim kho nws lub cev ruaj khov, kev siv cov thickeners yog ib qho ntawm cov txheej txheem sib xws. Raws li cov tuab dua, tshuaj tiv thaiv kab ntxwv muaj cov khoom siv thickening zoo heev thiab lwm yam tshwj xeeb cov txiaj ntsig, thiab tau siv ntau dua hauv cov txheej txheem ntawm cov xab npum.
Cov khoom ntawm Ethyl cellulose
Cov cellulose Etheny yog cov khoom siv ntawm ionic derivative tau los ntawm kev tso tawm cellulose nrog cov pab pawg neeg ua haujlwm. Nws yog cov hmoov daj dawb lossis me ntsis uas yuav luag tsis tau muaj nyob hauv dej, tab sis soluble hauv cov roj hauv cov organic (xws li dej cawv, cov kab mob, thiab lwm yam). Cov qauv molecular ntawm Ethyl cellulose muaj ntau cov tshuaj hydroxyl thiab ethyl hloov, uas muab nws zoo adhesion, thickening thiab zaj duab xis-tsim cov khoom. Vim tias nws cov txom nyem solubility hauv dej, feem ntau nws yog feem ntau siv los ua qhov tsis txaus siab lossis cov tuab tuab hauv cov txheej txheem dej ua kua.
Lub thickening cov nyhuv ntawm ethyl cellulose yog los ua ib pawg tsiaj uas muaj molroxyl thiab lwm yam khoom xyaw hauv cov kua xab npum, yog li nce lub viscosity ntawm xab npum. Ntawm qee qhov kev xav tau zoo, Ethyl cellulose tuaj yeem ua kom muaj kev sib xws ntawm cov xab npum ua kua, txhim kho nws cov khoom siv ntau dua, thiab ua kom zoo dua thiab xis siv.
Daim ntawv thov ntawm Ethyl cellulose hauv cov kua xab npum
Nyob rau hauv lub freatulation ntawm kua xab npum, cov cellulose hluav taws xob feem ntau yog siv los ua cov thickener lossis stabilizer. Nws lub ntsiab yog:
Ua kom viscosity: viscosity ntawm cov kua xab npum muaj qhov cuam tshuam tseem ceeb rau nws cov kev siv kev paub thiab kev ua tau zoo. Kev siv cov cellulose tshuaj tau tuaj yeem ua kom cov xab npum ua kua, ua cov kua xab npum yooj yim los tswj thaum siv, thaum nce kev nplij siab ntawm kev siv.
Txhim kho cov yam ntxwv deb ntawm cov kua qaub ntev: cov kua qaub ua kom muaj kev tswj hwm hauv qee qhov khoom hauv lub taub hau lossis lub raj mis. Ethyl Cellulose tuaj yeem tsim cov qauv siv network ua kom zoo nkauj, uas tuaj yeem ua kua xab npum kom zoo nyob rau hauv ntau qhov chaw thiab tsis yog tus "stratification".
Txhim kho cov ruaj khov: cov cellulose hluav taws xob tuaj yeem txhim kho kev ruaj ntseg ntawm lub cev ntawm cov kua xab npum thiab txo qhov sib cais ntawm xab npum cov khoom xyaw. Tshwj xeeb tshaj yog thaum muaj ntau yam ntawm lwm yam khoom xyaw (xws li cov tshuaj tsw qab, moisturizers, thiab lwm yam) tau ntxiv rau cov tshuaj ntxuav tes los ntawm kev sib txawv vim kev sib txawv.
Kev tsim kho cov kev paub dhau los: Ethylylose tuaj yeem muab qee qhov kov, ua cov kua xab npum ntau dua foamy thiab smoother thaum siv, txhim kho cov neeg siv kev paub.
Tsim Qauv Tsim Siv Tshuaj Txhim Kho Txheej Txheem
Nyob rau hauv kev tsim qauv ntawm cov kua xab npum, tus nqi ntawm cov tshuaj tua kab mob feem ntau yog nyob ntawm cov xab npum kua thiab qhov kev xav tau viscosity. Feem ntau hais lus, lub concentration ntawm cov tshuaj cellulose ntawm 0.5% mus rau 0.5% mus rau hauv 0.5%, thiab cov lus qhia tshwj xeeb xav tau kho raws li cov txheej txheem ntau lawm thiab hom phiaj viscosity. Cov hauv qab no yog cov kua xab npum ua kom yooj yim ua piv txwv:
Piv txwv cov mis (ib 1000g kua xab npum):
Surfactant (xws li sodium dodecylbenzene sulfonate): 12-18%
Dej: 70-75%%
Ethyl Cellulose: 0.5-1.5%
Daim fragrance: tus nqi tsim nyog
Humectant (xws li glycerin): 2-5%
pX excitter (xws li citric acid): tus nqi uas tsim nyog
Lwm cov khoom xyaw xws li cov neeg nyiam ua xws li, stabilizers thiab cov khoom sib ntxiv tuaj yeem raug ntxiv rau cov mis nyob rau hauv cov txiaj ntsig tsim nyog raws li xav tau kom ua tiav cov khoom cuam tshuam tshwj xeeb.
Kev ceev faj thaum siv tshuaj phais Ethylulose
Cov txheej txheem yaj kiab: Ethyl cellulose yaj qeeb hauv dej, tshwj xeeb tshaj yog nyob rau hauv dej txias. Yog li ntawd, thaum npaj kua xab npum ua kua, muaj kev sib cais ntawm cov tshuaj tua kab mob uas tsim nyog yuav tsum tau ua raws li qhov tsim nyog kub, zoo dua nrog dej sov thiab txaus kom tsis txhob agglomeration.
Kev tswj ntau npaum li cas: Cov nyhuv tuab ntawm cov tshuaj phais ntawm lub siab yog nyob ntawm nws cov kev xav tau, tab sis siab dhau qhov ntau npaum li cas tuaj yeem ua kom cov xab npus ua kom lub cev tsis muaj zog. Yog li, cov tshuaj yuav tsum tau ua kom zoo raws li qhov kev xav tau tiag tiag thiab kev sim.
Compatibility nrog lwm cov khoom xyaw: Ethyl formatibility muaj ntau yam surfactants thiab cov kua qaub muaj zog thiab cov kua qaub yuav cuam tshuam rau nws cov nyhuv tuab. Qhov tsim nyog kev ntsuas tsim nyog yuav tsum muaj nyob rau hauv kev txhim kho mis.
Raws li cov thickener ua tau zoo dua, Ethyl cellulose ua lub luag haujlwm tseem ceeb hauv kev tsim cov kua xab npum. Nws tuaj yeem txhim kho qhov zoo thiab cov neeg siv khoom siv ua kua ntawm cov kua tshuaj peebasal, txhim kho kev ruaj khov, txhim kho kev ruaj khov thiab txhim kho qhov kev xav siv. Txawm li cas los xij, thaum siv tshuaj cellulose ethyls, nws tseem yuav tsum kho nws cov kev xav tau thiab cov khoom siv tsim khoom thiab cov khoom lag luam zoo tshaj plaws ntawm cov khoom kawg.
Lub Sijhawm Post: Feb-20-2025