NtxivHydroxypropyl methylcellulose (HPMC)rau cov kua detergents yuav tsum tau cov kauj ruam tshwj xeeb thiab cov tswv yim los xyuas kom meej tias nws muaj peev xwm yaj tag nrho thiab ua lub luag haujlwm hauv thickening, stabilization thiab txhim kho rheology.
1. Cov yam ntxwv tseem ceeb thiab kev ua haujlwm ntawm HPMC
Cov yam ntxwv ntawm HPMC
HPMC yog non-ionic cellulose ether nrog zoo solubility, thickening thiab stability. Nws tuaj yeem tsim cov tshuaj pob tshab colloidal hauv cov dej hauv dej thiab muaj zog yoog raws rau kev hloov pauv hauv qhov kub thiab txias.
Lub luag haujlwm hauv cov kua tshuaj ntxuav tes
Cov nyhuv Thickening: Muab cov viscosity tsim nyog thiab txhim kho kev xav ntawm cov tshuaj ntxuav tes.
Kev txhim kho kev ruaj ntseg: Tiv thaiv kom tsis txhob detergent stratification lossis nag lossis daus.
Kev hloov kho Rheology: Muab cov tshuaj ntxuav dej kom zoo fluidity thiab muaj peev xwm tshem tawm.
Txhim kho cov neeg siv kev paub: Txhim khu kev ruaj ntseg thiab adhesion ntawm cov npuas dej.
2. Cov kauj ruam yooj yim rau kev ntxiv HPMC
Kev npaj
Kev xaiv: Xaiv tus qauv HPMC uas tsim nyog (xws li qib viscosity, qib kev hloov pauv, thiab lwm yam) raws li cov khoom xav tau. Cov qauv uas muaj xws li cov viscosity tsawg thiab siab viscosity HPMC rau txawv thickening teebmeem.
Qhov hnyav: Ua kom raug qhov hnyav ntawm HPMC raws li cov qauv xav tau.
Pre-dispersing HPMC
Media xaiv: Pre-disperse HPMC nrog dej txias los yog lwm yam uas tsis yog-solvent media (xws li ethanol) los tiv thaiv kev tsim ntawm lumps thaum ntxiv ncaj qha.
Ntxiv txoj kev: Maj mam sprinkle HPMC rau hauv cov dej txias stirred kom tsis txhob agglomeration.
stirring txheej txheem: Txuas ntxiv stirring rau li 10-15 feeb kom txog thaum ib tug uniform dispersion yog tsim.
Cov kauj ruam tawg
Kev ua kom cua sov: Ua kom sov lub dispersion mus rau 40-70 ℃ los txhawb qhov o thiab tawg ntawm HPMC. Nws yuav tsum tau muab sau tseg tias qhov kub dissolution ntawm HPMC ntawm cov qauv sib txawv me ntsis txawv.
stirring thiab dissolving: Thaum cua sov, txuas ntxiv stirring ntawm nruab nrab ceev kom txog rau thaum HPMC yog kiag li yaj los ua ib tug pob tshab los yog milky dawb uniform kua.
Sib tov nrog cov kua xab npum hauv paus kua
Kev kho cua sov: Txias lubHPMCkev daws rau hauv chav tsev kub kom tsis txhob muaj qhov kub thiab txias ntawm lwm cov khoom xyaw ntawm cov tshuaj ntxuav tes.
Ntxiv me ntsis ntxiv: Maj mam ntxiv cov tshuaj HPMC rau cov kua tshuaj detergent hauv paus kua thaum nplawm kom ntseeg tau tias muaj kev sib faib.
Kev hloov kho viscosity: Kho tus nqi ntawm HPMC cov tshuaj kom ua tiav qhov xav tau viscosity.
3. Ceev faj
Tsis txhob agglomeration
Thaum ntxiv HPMC, nplawm nws maj mam thiab do tusyees, txwv tsis pub nws yooj yim rau tsim agglomerates, ua rau tsis tiav dissolution.
Pre-dispersion yog ib kauj ruam tseem ceeb, thiab kev siv cov dej txias los yog lwm yam uas tsis yog-solvent media tuaj yeem tiv thaiv agglomeration.
Txoj kev stirring
Siv nruab nrab-ceev nplawm kom tsis txhob muaj npuas tshwm sim los ntawm kev nplawm nrawm dhau, uas yuav cuam tshuam rau qhov zoo ntawm cov kua detergents.
Yog tias ua tau, siv cov cuab yeej siv siab-shear stirring los txhim kho kev ua haujlwm kom tawg.
Kev tswj qhov kub thiab txias
HPMC rhiab heev rau qhov kub thiab txias, thiab qhov kub siab dhau los yog qis dhau yuav ua rau muaj kev sib cais tsis zoo lossis tsis ua haujlwm. Yog li ntawd, qhov kub thiab txias yuav tsum tau nruj me ntsis tswj thaum lub sij hawm dissolution.
Compatibility nrog lwm cov khoom xyaw
Txheeb xyuas qhov sib xyaw ua ke ntawm HPMC nrog lwm cov khoom xyaw hauv cov tshuaj ntxuav tes, tshwj xeeb tshaj yog cov ntsev ib puag ncig yuav cuam tshuam rau cov nyhuv thickening ntawm HPMC.
Rau cov qauv tshuaj ntxuav tes uas muaj cov kua qaub uas muaj zog lossis muaj zog alkalis, kev ruaj ntseg ntawm HPMC yuav tsum tau ua kom ntseeg tau.
Lub sijhawm tawg
Nws yuav siv sij hawm qee lub sij hawm rau HPMC kom yaj tag, thiab nws yuav tsum tau nplawm ua siab ntev kom tsis txhob muaj viscosity instability vim tsis tiav dissolution.
4. Tej teeb meem thiab kev daws teeb meem
Kev daws teeb meem
Yog vim li cas: HPMC tej zaum yuav agglomerated los yog lub dissolution kub yog tsis tsim nyog.
Kev daws: Optimize lub pre-dispersion kauj ruam thiab nruj me ntsis tswj cov cua sov thiab stirring txheej txheem.
Detergent stratification lossis nag lossis daus
Yog vim li cas: Tsis txaus HPMC ntxiv los yog tsis tiav dissolution.
Kev daws: Ua kom tus nqi ntawm HPMC kom tsim nyog thiab ua kom tiav kev sib cais.
Siab viscosity
Yog vim li cas: HPMC ntau dhau lawm los yog tsis sib xws.
Kev daws: Tsim nyog txo tus nqi ntxiv thiab txuas ntxiv lub sijhawm nplawm.
NtxivHPMCmus rau kua detergents yog ib tug txheej txheem uas yuav tsum tau kev tswj kom zoo. Los ntawm kev xaiv HPMC tus qauv tsim nyog los ua kom zoo rau kev sib cais thiab kev sib xyaw ua ke, txhua kauj ruam muaj qhov cuam tshuam tseem ceeb rau kev ua haujlwm ntawm cov khoom kawg. Los ntawm kev ua haujlwm raug, qhov thickening, stabilization thiab rheology hloov ua haujlwm ntawm HPMC tuaj yeem siv tag nrho, yog li txhim kho kev ua haujlwm thiab kev ua lag luam kev sib tw ntawm cov kua detergents.
Post lub sij hawm: Dec-10-2024