Hydroxypropylmethylcellulose (HPMC) yog ib qho dej-soluble semi-synthetic polymer muab los ntawm cellulose. Nws yog dav siv nyob rau hauv ntau yam industries rau nws thickening, khi thiab emulsifying zog. Ib qho ntawm cov ntawv thov tseem ceeb tshaj plaws ntawm HPMC yog ua tus neeg saib xyuas dej hauv ntau yam xws li kev tsim kho, khoom noj khoom haus, tshuaj pleev ib ce thiab tshuaj.
Kev tuav dej yog ib qho tseem ceeb ntawm ntau yam khoom siv thiab kev siv. Nws hais txog lub peev xwm ntawm ib yam khoom los tuav dej hauv nws cov qauv. Hauv kev tsim kho kev lag luam, kev tuav dej yog ib qho tseem ceeb vim nws pab tswj cov dej ntawm cov cement thaum lub sijhawm kho. Cov evaporation ntau dhau ntawm cov dej noo thaum lub sijhawm kho tuaj yeem ua rau kev sib txuas tsis zoo thiab tawg ntawm cov cement, cuam tshuam cov qauv kev ncaj ncees ntawm lub tsev. Hauv kev lag luam khoom noj, kev tuav dej yog qhov tseem ceeb rau cov khoom zoo nkauj, ruaj khov thiab txee lub neej. Nyob rau hauv cov tshuaj pleev ib ce, dej tuav muab hydration thiab moisturizing zog rau daim tawv nqaij. Hauv kev siv tshuaj, kev tuav dej yog qhov tseem ceeb rau kev ruaj ntseg thiab kev ua tau zoo.
HPMC yog tus neeg saib xyuas dej zoo heev vim nws cov qauv tshuaj tshwj xeeb. Nws yog nonnionic polymer, uas txhais tau hais tias nws nqa tsis tau nqi thiab tsis cuam tshuam nrog ions. Nws yog hydrophilic, uas txhais tau hais tias nws muaj affinity rau dej thiab absorbs nws yooj yim thiab khaws cia nyob rau hauv nws cov qauv. Tsis tas li ntawd, HPMC muaj qhov hnyav molecular, uas ua rau nws muaj txiaj ntsig zoo thickener thiab binder. Cov khoom no ua rau HPMC zoo tagnrho rau kev tuav dej hauv ntau yam kev siv.
Hauv kev tsim kho kev lag luam, HPMC yog siv los ua tus neeg saib xyuas dej hauv cov cement thiab pob zeb formulations. Thaum kho, HPMC tuaj yeem khaws cov dej noo hauv cov cement, yog li ua kom cov txheej txheem ziab kom qhuav thiab ua kom cov dej kom zoo ntawm cov cement. Qhov no ua rau muaj kev sib raug zoo dua thiab txo qhov kev pheej hmoo ntawm kev tawg thiab shrinkage. Tsis tas li ntawd, HPMC tuaj yeem txhim kho kev ua haujlwm thiab sib xws ntawm cov cement, ua kom yooj yim rau kev thov, kis thiab ua tiav. HPMC kuj tseem siv rau hauv cov tshuaj khib nyiab los txhim kho qhov adhesion, cohesion thiab workability ntawm mortar. Cov dej tuav cov khoom ntawm HPMC yog qhov tseem ceeb rau kev ua haujlwm thiab kav ntev ntawm cov tsev.
Hauv kev lag luam zaub mov, HPMC yog siv los ua cov thickener, stabilizer thiab emulsifier. Nws feem ntau pom muaj nyob rau hauv cov khoom siv mis nyuj, khoom ci, thiab dej haus. HPMC tuaj yeem txhim kho qhov kev ntxhib los mos thiab qhov ncauj ntawm cov khoom noj thiab tiv thaiv kev sib cais ntawm cov khoom xyaw. Hauv kev ci, HPMC tuaj yeem ua kom lub ntim ntawm lub khob cij thiab txhim kho cov qauv ntawm cov qhob cij. Hauv cov khoom siv mis nyuj xws li yogurt thiab dej khov, HPMC tiv thaiv kev tsim cov dej khov thiab txhim kho creaminess thiab smoothness. Cov dej tuav cov khoom ntawm HPMC yog qhov tseem ceeb rau kev tswj cov dej noo thiab qhov tshiab ntawm cov khoom noj khoom haus thiab txuas ntxiv lawv lub neej txee.
Hauv cov tshuaj pleev ib ce, HPMC yog siv los ua cov thickener thiab emulsifier hauv cream, tshuaj pleev, thiab tshuaj zawv plaub hau. HPMC txhim kho cov khoom sib kis thiab sib xws, thiab muab cov txiaj ntsig moisturizing thiab hydrating. Cov dej tuav cov khoom ntawm HPMC yog qhov tseem ceeb rau kev nqus dej noo thiab khaws cia ntawm daim tawv nqaij thiab plaub hau, uas tuaj yeem txhim kho softness, elasticity thiab luster ntawm daim tawv nqaij thiab plaub hau. HPMC kuj tseem siv los ua cov yeeb yaj kiab yav dhau los hauv cov tshuaj pleev thaiv hnub, uas tuaj yeem muab kev tiv thaiv kev tiv thaiv thiab tiv thaiv kom tsis txhob ya raws ntawm daim tawv nqaij.
Hauv kev lag luam tshuaj, HPMC yog siv los ua cov ntawv khi, txheej thiab tso tawm tus neeg sawv cev hauv cov ntsiav tshuaj thiab tshuaj ntsiav. HPMC tuaj yeem txhim kho hmoov compressibility thiab flowability, uas tuaj yeem txhim kho qhov tseeb thiab qhov sib xws. HPMC tseem tuaj yeem muab kev tiv thaiv kev tiv thaiv thiab tiv thaiv cov tshuaj degradation thiab kev cuam tshuam nrog lwm yam khoom. Cov dej tuav cov khoom ntawm HPMC yog qhov tseem ceeb rau kev ruaj ntseg tshuaj thiab bioavailability vim nws ua kom muaj kev sib cais thiab nqus tau zoo hauv lub cev. HPMC kuj tseem siv rau hauv qhov muag tee ua cov thickener, uas tuaj yeem ua rau lub sijhawm sib cuag thiab txhim kho kev ua tau zoo ntawm cov tshuaj.
Hauv kev xaus, hydroxypropyl methylcellulose (HPMC) yog ib qho tseem ceeb ntawm cov dej khaws cia hauv ntau yam lag luam xws li kev tsim kho, khoom noj khoom haus, tshuaj pleev ib ce thiab tshuaj. Cov khoom tshwj xeeb ntawm HPMC, xws li non-ionic, hydrophilic thiab siab molecular hnyav, ua rau nws muaj txiaj ntsig zoo thickener, binder thiab emulsifier. Cov dej tuav cov khoom ntawm HPMC yog qhov tseem ceeb rau kev ua haujlwm thiab kev ua haujlwm ntawm cov ntaub ntawv thiab cov khoom. Kev siv HPMC tuaj yeem txhim kho qhov zoo, ua haujlwm ntev thiab kev nyab xeeb ntawm cov khoom thiab pab txhawb kev noj qab haus huv ntawm tib neeg.
Post lub sij hawm: Aug-23-2023