1. Cov lus qhia yooj yim ntawm HPMC
HPMC (HydroxyPropyyl methylcellulose)yog cov khoom siv hluavtaws polymer muab tau los ntawm cov pob zeb ntuj ntuj. Nws yog feem ntau tsim los ntawm kev hloov kho tshuaj ntawm cellulose thiab yog siv dav hauv tshuaj, khoom noj, tshuaj pleev ib ce thiab kev tsim kho. Vim tias HPMC yog dej-soluble, tsis-toxic, tasteless thiab tsis-ua kom muaj kev txob taus, nws tau dhau los ua cov khoom tseem ceeb hauv ntau cov khoom.
Hauv kev lag luam kws tshuaj, HPMC tau siv los npaj cov tshuaj uas tau npaj tseg, tshuaj ntsiav rau cov tshuaj. Nws tseem dav siv nyob rau hauv cov zaub mov ua ib qho tuab, emulsifier, humectant thiab stabilizer, thiab txawm siv los ua cov khoom noj muaj calorie tsawg hauv qee cov khoom noj tshwj xeeb. Tsis tas li ntawd, HPMC kuj tseem siv los ua cov tuab thiab moisturizing hauv cov tshuaj pleev ib ce.
2. Qhov chaw thiab muaj pes tsawg leeg ntawm HPMC
HPMC yog lub cellulose ether tau los ntawm kev hloov tshuaj lom neeg ntawm cov cellulose ntuj. Cellulose nws tus kheej yog polysaccharide extracted los ntawm cov nroj tsuag, uas yog qhov tseem ceeb ntawm cov phab ntsa cell. Thaum synthesizing HPMC, xws li hydroxypropyl thiab methyl) tau qhia txog nws cov dej solubility thiab thickening cov khoom. Yog li ntawd, lub hauv paus ntawm HPMC yog ntuj cog raw khoom, thiab nws cov txheej txheem hloov kho ua rau nws ntau soluble thiab veratilile thiab ntau yam.
3. Daim ntawv thov ntawm HPMC thiab tiv tauj nrog tib neeg lub cev
Kev teb Medical:
Hauv kev lag luam kws tshuaj, kev siv HPMC yog qhov xav tau hauv kev tso tshuaj raws li kev npaj. Txij li thaum HPMC tuaj yeem tsim cov txheej gel thiab tswj tau qhov tso tawm ntawm cov tshuaj tso tawm, nws yog dav siv nyob rau hauv kev txhim kho cov tshuaj tiv thaiv cov tshuaj. Ib qho ntxiv, HPMC kuj tseem siv los ua tshuaj ntsiav hniav rau cov quav yeeb tshuaj, tshwj xeeb tshaj yog cov neeg tsis noj nqaij ntses), qhov twg nws tuaj yeem hloov cov tsiaj tsis noj nqaij.
Los ntawm kev saib xyuas kev nyab xeeb, HPMC tau txiav txim siab muaj kev nyab xeeb yog cov tshuaj noj thiab feem ntau muaj cov tshuaj lom neeg zoo. Vim tias nws tsis yog-lom thiab tsis muaj txiaj ntsig rau tib neeg lub cev, FDA (US Fwarded HPMC ua zaub mov noj ntxiv thiab tsis muaj kev phom sij los ntawm kev siv kev noj qab haus huv.
Kev Lag Luam Khoom Noj:
HPMC yog dav siv hauv kev lag luam khoom noj, feem ntau yog siv cov khoom noj, txhaws, khoom noj khoom haus, khoom noj khoom haus, khoom noj khoom haus huv thiab khoom noj. HPMC kuj tseem siv tau ntau dua nyob rau hauv kev tsim cov khoom lag luam qis lossis cov roj muaj roj tsawg vim nws cov dej-soluble cov khoom, uas txhim kho saj thiab kev ntxhib los mos.
HPMC nyob rau hauv cov zaub mov raug hloov kho ntawm cov nroj tsuag cellulose, thiab nws cov kev xav tau thiab siv feem ntau nruj me ntsis tswj nyob rau hauv kev siv cov khoom noj khoom haus khoom noj khoom haus. Raws li kev tshawb fawb tam sim no thiab cov qauv kev nyab xeeb kev nyab xeeb ntawm ntau lub tebchaws, HPMC yog kev nyab xeeb lossis tsis muaj kev phom sij lossis kev noj qab haus huv.
Tshuaj pleev ib ce Kev Lag Luam:
Hauv cov tshuaj pleev ib ce, HPMC feem ntau siv los ua cov tuab dua, emulsifier thiab dej noo. Nws yog dav siv nyob rau hauv cov khoom xws li cream, lub ntsej muag ntxuav, muag creams, di ncauj, thiab lwm yam los kho cov qauv thiab ruaj khov ntawm cov khoom. Vim tias HPMC yog qhov me me thiab tsis ua rau tawv nqaij, nws yog qhov tsim nyog rau txhua hom tawv nqaij, tshwj xeeb tshaj yog cov tawv nqaij, tshwj xeeb tshaj plaws.
HPMC kuj tseem siv nyob rau hauv cov tshuaj pleev pob ntseg thiab cov khoom siv kho kom huv los pab txhim kho kev ruaj ntseg thiab nkag mus ntawm cov tshuaj xyaw.
4. Kev nyab xeeb ntawm HPMC mus rau tib neeg lub cev
Kev ntsuam xyuas tshuaj lom:
Raws li kev tshawb nrhiav tam sim no, HPMC tau txiav txim siab muaj kev nyab xeeb rau tib neeg lub cev. Lub Koom Haum Ntiaj Teb Kev Noj Qab Haus Huv (Leej twg), cov koom haum zaub mov thiab ntseeg tias nws siv hauv cov tshuaj thiab cov khoom noj muaj nyob rau hauv cov tshuaj thiab cov zaub mov noj hauv kev noj qab haus huv yuav tsis cuam tshuam rau tib neeg kev noj qab haus huv. Daim FDA teev HPMC ua "feem ntau lees paub tias muaj kev nyab xeeb" (Gras) yeeb tshuaj thiab tso cai rau nws siv los ua cov khoom noj ntxiv thiab siv tshuaj ntxiv.
Cov chaw kuaj mob thiab kev txheeb xyuas rooj plaub:
Ntau cov kev tshawb fawb tau pom tau qhia tiasHPMCTsis ua rau muaj kev cuam tshuam lossis cov kev mob tshwm sim tsis pub dhau txoj kev siv. Piv txwv li, thaum HPMC yog siv hauv kev npaj tshuaj, cov neeg mob feem ntau tsis qhia kev ua xua lossis lwm yam tsis xis nyob. Tsis tas li ntawd, tsis muaj teeb meem kev noj qab haus huv los ntawm kev siv HPMC ntau dhau. HPMC kuj tseem suav tias muaj kev nyab xeeb hauv qee cov haiv tshwj xeeb tshwj tsis yog muaj kev ua xua rau nws cov khoom xyaw.
Kev ua xua thiab cov kev tsis zoo:
Txawm hais tias HPMC tsis yog feem ntau ua rau cov neeg ua xua, cov neeg rhiab heev yuav muaj kev fab tshuaj rau nws. Cov tsos mob ntawm kev fab tshuaj tsis haum twg yuav suav nrog liab liab, khaus, thiab ua pa nyuaj, tab sis cov xwm txheej zoo li no tsis tshua muaj. Yog tias kev siv HPMC cov khoom ua rau muaj kev tsis xis nyob, tsis txhob siv nws tam sim ntawd thiab sab laj tus kws kho mob tam sim ntawd.
Qhov cuam tshuam ntawm kev siv ntev:
Kev siv lub sijhawm HPMC yuav tsis ua rau muaj kev paub tsis zoo rau tib neeg lub cev. Raws li kev tshawb fawb tam sim no, tsis muaj pov thawj txog HPMC yuav ua rau mob plab xws li daim siab thiab lub raum tsis cuam tshuam rau tib neeg lub cev tiv thaiv kab mob lossis ua rau muaj kab mob ntev. Yog li, kev siv HPMC muaj kev nyab xeeb nyob rau hauv cov zaub mov uas twb muaj lawm thiab cov qauv tshuaj.
5. Xaus
Raws li qhov sib txuas los ntawm cov nroj tsuag ntawm lub ntuj cog, HPMC tau dav siv nyob rau hauv ntau daim teb xws li tshuaj, zaub mov thiab tshuaj pleev ib ce. Coob tus ntawm kev tshawb fawb txog kev tshawb fawb thiab kev tshuaj xyuas kev lom zem tau qhia tias HPMC muaj kev nyab xeeb nyob rau hauv ib qho kev siv muaj txiaj ntsig zoo lossis tsis muaj kev phom sij rau tib neeg lub cev. Txawm npaj tshuaj, cov khoom noj ntxiv cov khoom noj lossis cov tshuaj pleev ib ce, HPMC yog suav tias yog cov khoom muaj kev nyab xeeb thiab ua tau zoo. Ntawm chav kawm, rau kev siv cov khoom lag luam, cov kev coj ua uas muaj feem xyuam rau kev siv yuav tsum tau zam, thiab kev saib xyuas yuav tsum tau them rau cov kev ua xua thaum siv. Yog tias koj muaj teeb meem kev noj qab haus huv tshwj xeeb lossis kev txhawj xeeb, nws raug pom zoo los sab laj tus kws kho mob lossis kws tshaj lij.
Lub Sijhawm Post: Dec-11-2024