HydroxyPropylenCellulose (HPMC) yog ib qho tseem ceeb rau cov khoom siv tsis zoo, yog li cov khoom siv ua kom zoo, yog li cov khoom siv, khoom noj khoom haus, cov tshuaj pleev ib ce, cov tshuaj pleev ib ce thiab lwm thaj teb Cov.
Thickening mechanism ntawm hydroxypropyl methylcelulose
Cov nyhuv tuab ntawm HPMC feem ntau yog los ntawm nws cov qauv molecular. HPMC molecular chain muaj cov pawg hydroxyl thiab metyl pawg, yog li txwv kev txav ntawm dej lwg me me thiab nce viscosity ntawm kev daws teeb meem. Thaum HPMC yog yaj hauv dej, nws cov moleceries saw nthuav tawm hauv dej thiab cuam tshuam nrog cov qauv dej los ua tus qauv dej, yog li nce lub viscosity ntawm kev daws. Lub peev xwm thickening ntawm HPMC kuj tseem cuam tshuam los ntawm kev xws li nws cov qib ntawm kev hloov pauv, hnyav hnyav thiab xav tau.
Daim ntawv thov ntawm HydroxyPropyyl methylulose hauv cov ntaub ntawv tsim tsev
Hauv cov ntaub ntawv hauv tsev, HPMC tsuas yog siv nyob rau hauv cov khoom xws li cementum-based cov ntaub ntawv thiab txheej ci ua cov tuab thiab dej rov qab. Nws cov nyhuv tuab tuaj yeem txhim kho kev tsim kho cov khoom siv thiab txhim kho nws cov txheej txheem kev tsim kho, yog li ua cov txheej txheem kev tsim kho. Piv txwv li, hauv cugas cug, qhov sib xyaw ntawm HPMC tuaj yeem nce viscosity ntawm cug tshuaj ntawm sagging thaum nws tau tsim ntawm ib ntsug. Nws tseem tuaj yeem txhim kho cov dej tuav ntawm lub tshuaj khib thiab tiv thaiv cov tshuaj khib los ntawm ziab nrawm dhau, yog li kev txhim kho lub zog thiab ruaj khov ntawm lub cug.
Daim ntawv thov ntawm HydroxyPropyyl methylcellose hauv cov chaw muag tshuaj
Hauv lub chaw muag tshuaj, HPMC tau dav siv hauv cov ntsiav tshuaj, cov tshuaj ntsiav, gels, ophthalmic npaj thiab lwm yam tshuaj uas ua cov ntaub ntawv tuab, zaj duab xis yav tas los thiab nplaum. Nws cov nyhuv zoo heev tuaj yeem txhim kho cov khoom siv hluav taws xob ntawm cov tshuaj thiab txhim kho kev ruaj ntseg thiab cov tshuaj muaj zog thiab cov tshuaj. Piv txwv li, hauv OPHThalmic npaj, HPMC tuaj yeem siv ua cov siv roj nplua nyeem thiab cov khoom siv tholong, thiab nws cov txiaj ntsig zoo rau lub sijhawm ua haujlwm nyob rau hauv qhov chaw ua tau zoo, yog li kev txhim kho qhov ua tau zoo ntawm cov tshuaj.
Daim ntawv thov ntawm HydroxyPropyyl methylulose nyob rau hauv cov zaub mov
In the food industry, HPMC is often used in foods such as dairy products, jellies, beverages and baked products as a thickener, emulsifier and stabilizer. Nws cov nyhuv tuab tuaj yeem txhim kho qhov saj thiab kev ntxhib los mos ntawm cov zaub mov, thiab nce viscosity thiab ruaj khov ntawm cov zaub mov. Piv txwv li, hauv cov khoom noj siv mis, HPMC tuaj yeem nce viscosity ntawm cov khoom lag luam thiab tiv thaiv nagmosity, li kev txhim kho lub saj thiab ruaj khov ntawm cov khoom.
Daim ntawv thov ntawm HydroxyPropyyl methylulose hauv cov tshuaj pleev ib ce
In the field of cosmetics, HPMC is widely used in products such as lotions, creams, shampoos and conditioners as a thickener, emulsifier and stabilizer. Nws cov nyhuv tuab tuaj yeem txhim kho cov qauv thiab kev ruaj ntseg ntawm cov tshuaj pleev ib ce, thiab txhim kho cov nyhuv siv cov khoom siv. Piv txwv li, nyob rau hauv lotions thiab cream thiab cream, ntxiv rau HPMC tuaj yeem ua rau muaj kuab heev thiab nqus, thaum tseem txhim kho cov nyhuv ya los ntawm cov khoom.
HydroxyPropy muag methylcellulose tau siv dav hauv cov ntaub ntawv hauv tsev, cov chaw muag tshuaj, khoom noj thiab pleev cov tshuaj pleev ib ce. Nws cov txheej txheem tuab yuav ua rau cov tshuaj viscosity los ntawm kev ua cov lwg hydrogen, txwv kev txav ntawm cov dej lwg me me. Cov teb sib txawv muaj cov ntawv thov sib txawv rau HPMC, tab sis nws cov haujlwm tseem ceeb yog txhawm rau txhim kho cov viscosity thiab ruaj khov ntawm cov khoom. Nrog kev nce qib ntawm science thiab thev naus laus zis thiab kev tsim kho cov cuab yeej siv thev naus laus zis, kev thov kev pab ntawm HPMC yuav nthuav dav.
Lub Sijhawm Post: Jul-31-2024