HydroxyPropyyl methylulose (HPMC) yog cov khoom siv hluavtaws ib nrab, cov khoom siv lom neeg ntau polymer. Nyob rau hauv xab npum ua qauv, HPMC tau dhau los ua qhov tseem ceeb ntxiv vim nws cov tuab heev, ua kom muaj zog, noo noo thiab lwm yam khoom.
1. Cov yam ntxwv ntawm HPMC
HPMC yog lub cellulose ether compound, uas tau txais los ntawm cov ntaub ntawv ntawm lub ntsej muag los ntawm kev hloov kho tshuaj lom neeg. Nws cov yam ntxwv tseem ceeb muaj:
Cov dej ua kom zoo solubility: HPMC tuaj yeem yaj hauv dej txias los tsim lub pob tshab thiab muaj kuab tshuaj.
Thickening nyhuv: HPMC muaj cov nyhuv zoo heev, tuaj yeem nce cov tshuaj ntawm cov kev ua kom muaj ntau yam, thiab haum rau ntau yam kua ua kua.
Zaj duab xis-ua cov khoom: tom qab dej evaporates, HPMC tuaj yeem tsim qhov hloov tau thiab pob tshab los txhim kho cov nplaum ntawm cov xab npum.
Antioxidation thiab tshuaj lom neeg stability: HPMC muaj cov tshuaj lom neeg ua haujlwm, muaj peev xwm nyob ruaj khov ib puag ncig, yog acid thiab alkali tiv taus, thiab yog antioxidant.
Moisturizing cov cuab yeej: HPMC muaj kev muaj peev xwm ua tau zoo thiab tuaj yeem ncua cov dej poob, tshwj xeeb hauv cov tshuaj ntxuav cev nqaij daim tawv.
2. Lub tshuab ua haujlwm ntawm HPMC nyob rau hauv detergents
Nyob rau hauv xab npum ua qauv, tshwj xeeb tshaj yog cov tshuaj ntxuav kua, ruaj khov yog ib qho ntawm nws cov khoom tseem ceeb. Cov tshuaj ntxuav tes yuav tsum muaj cov khoom siv lub cev ruaj khov thiab tshuaj lom neeg tau ntev, thiab HPMC ua lub luag haujlwm tseem ceeb hauv qhov no, feem ntau yog nyob rau hauv cov hauv qab no:
Tiv thaiv theem sib cais: kua xab npes feem ntau muaj ntau yam tshuaj xws li dej, cov tshuaj tsw qab, uas yog nquag sib cais thaum lub sij hawm ntev cia. Lub thickening nyhuv ntawm HPMC tuaj yeem ua kom muaj kev tiv thaiv lub viscosity, ua rau txhua tus neeg mob siab thiab nag lossis daus.
Txhim kho kev ua npuas dej ruaj khov: thaum lub sijhawm ntxuav, ua npuas ncauj ruaj khov yog qhov tseem ceeb heev. HPMC tuaj yeem nce viscosity ntawm cov kua thiab ncua sij hawm bursting ntawm foam, yog li kev txhim kho lub durability ntawm npaus. Qhov no muaj kev cuam tshuam zoo heev rau kev siv cov tshuaj ntxuav tes, tshwj xeeb tshaj yog rau kev ntxuav tes lossis rau cov khoom lag luam nrog kev ntxuav ua npuas dej.
Txhim kho cov nyhuv tuab: cov nyhuv tuab ntawm HPMC tuaj yeem ua cov tshuaj ntxuav kom ua kua dej muaj qhov zoo dua thiab tiv thaiv kom tuab lossis tuab. Hauv kev ua kom dav dav, cov nyhuv tuab ntawm HPMC tsis ruaj khov, xws li yog cov ntxhua khaub ncaws alkaline, xws li cov khaub ncaws ntxhua khaub ncaws alkaline, xws li tshuaj ntxhua khaub ncaws alkaline thiab cov khaub ncaws ntxhua khaub ncaws ntxhua kom ntau.
Anti-khov thiab yaj ruaj khov: ib co xab npum yuav delamicate los yog crystallize hauv cov khoom siv kub tsawg, ua rau cov khoom poob los yog muab faib tsis ncaj. HPMC tuaj yeem txhim kho lub khov-thaws ntawm cov qauv, ua kom lub cev tsis hloov pauv thaum rov qab ua kom tiav, thiab tsis txhob cuam tshuam rau qhov ua kom zoo ntawm cov xab npum.
Tiv thaiv adhesion thiab sedimentation: hauv cov tshuaj ntxuav tes uas muaj cov khoom siv tshuaj ntxuav tes (HPMC tuaj yeem tiv thaiv cov khoom lag luam, zoo dua qhov kev ncua kev ruaj ntseg ntawm cov khoom.
3. Daim ntawv thov ntawm HPMC nyob rau ntau hom kev xab npum
(1). Tshuaj Npab
HPMC yog siv los ua cov tuab thiab stabilizer hauv cov tshuaj tua ntxhua khaub ncaws. Nws lub luag haujlwm tseem ceeb yog txhawm rau tiv thaiv cov stratification ntawm cov xab npam ua npuas dej, thiab xyuas kom cov khoom siv ntxuav ua ke. Nws zoo biocompatibility thiab tsis-to ua kom paub tseeb tias nws yuav tsis ua rau daim tawv nqaij voos thaum ntxuav khaub ncaws.
(2). Ntxuav tais diav kua
Hauv cov tais ntxuav tais diav kua, HPMC tsis tsuas yog pab txhim kho fundicity, tab sis kuj txhim kho lub zog ua npuas dej thiab txhim kho cov neeg siv kev paub. Nyob rau tib lub sijhawm, nws tuaj yeem tiv thaiv nag lossis daus thiab nag lossis daus ntawm surfactants, khaws cov khoom ntshiab thiab pob tshab thaum cia.
(3). NPMetic Tu Khoom
HPMC feem ntau siv nyob rau hauv cov khoom xws li cov ntsej muag ntsej muag thiab da dej gel. Nws lub luag haujlwm tseem ceeb yog txhawm rau txhim kho kev ntxhib los mos thiab fellity ntawm cov khoom thaum muab cov nyhuv noo. Txij li thaum HPMC nws tus kheej yog tsis muaj tshuaj lom thiab mob me, nws yuav tsis ua rau tawv nqaij khaus thiab haum rau siv hauv cov khoom ntxuav rau ntau hom tawv nqaij.
(4). Muaj Cov Tshuaj So
Ntawm cov tshuaj ntxuav tes, HPMC lub sab ruaj khov thiab thickening cov nyhuv ua rau nws tshwj xeeb haum rau ib puag ncig kev muaj teeb meem. Piv txwv li, hauv cov tshuaj ntxuav hauv hlau, nws tuav ib qho kev faib khoom ntawm cov khoom siv nquag thiab tiv thaiv cov stratification thaum lub sijhawm khaws cia.
4. Qhov xwm txheej cuam tshuam rau qhov ruaj ntseg ntawm xab npum txhim kho los ntawm HPMC
Txawm hais tias HPMC qhia tau tias zoo tshaj qhov kev txhim kho hauv kev xab npum, nws cov nyhuv yuav raug cuam tshuam los ntawm qee yam:
Cov siab: Tus nqi HPMC cuam tshuam rau kev ruaj ntseg thiab fluabity ntawm cov xab npum. Ib qho kev xav uas muaj siab dhau yuav ua rau cov xab npum ua kom muaj zog dhau, cuam tshuam rau cov neeg siv kev paub; Thaum lub siab xav tias nws qis dhau yuav tsis tau siv nws cov nyhuv stabilizing.
Qhov kub thiab txias: Cov nyhuv tuab tuab ntawm HPMC raug cuam tshuam los ntawm qhov kub thiab txias, thiab nws cov viscosity yuav txo qis ntawm qhov kub siab dua. Yog li ntawd, thaum siv nyob rau hauv qhov chaw kub kub, cov mis yuav tsum tau hloov kho kom haum viscosity uas tsim nyog.
PH TSEG: Txawm hais tias HPMC muaj kev ruaj khov zoo nyob rau hauv ntau cov qauv acid thiab alkali ib puag ncig kuj tseem tuaj yeem cuam tshuam cov kev faib ua feem lossis kev ntxiv lwm yam kev sib ntxiv los txhawb kom muaj kev ruaj khov.
Kev sib xyaw nrog lwm cov khoom: HPMC yuav tsum muaj kev sib xyaw zoo nrog lwm cov hauv kev nqus dej, tshuaj tsw qab, kom tsis txhob muaj kev cuam tshuam tsis zoo lossis nag lossis daus. Feem ntau thaum tsim cov ntawv qhia, cov ncauj lus kom ntxaws kom paub tseeb tias cov synergy ntawm txhua cov khoom xyaw.
Daim ntawv thov ntawm HPMC hauv cov tshuaj ntxuav tes muaj cov nyhuv tseem ceeb ntawm kev txhim kho cov khoom ruaj khov. Nws tsis tsuas yog tiv thaiv theem sib cais ntawm cov xab npum thiab txhim kho npuas dej ruaj khov, tab sis kuj ua kom khov khov kho thiab txhim kho fundity. Nyob rau tib lub sijhawm, HPMC cov tshuaj ruaj khov, kev mob ntshav plab thiab tsis muaj txiaj ntsig ua rau nws haum, suav nrog cov khoom lag luam hauv tsev neeg. Txawm li cas los xij, kev siv cov nyhuv ntawm HPMC tseem yuav tau ua kom zoo raws li cov qauv tshwj xeeb kom ntseeg tau tias qhov kev ua tau zoo tshaj plaws hauv cheeb tsam.
Lub Sijhawm Post: Oct-18-2024