Hydroxypropylmethylcellulose (HPMC) yog ib qho tshuaj sib xyaw uas tau siv dav hauv ntau qhov kev lag luam vim nws cov khoom siv ntau yam thiab cov khoom tshwj xeeb.HPMC yog ib hom cellulose ether, muab los ntawm ntuj polymer cellulose.
Ib qho ntawm cov kev siv ntau tshaj plaws ntawm HPMC yog nyob rau hauv kev lag luam tshuaj rau kev tsim cov tshuaj coatings, adhesives thiab lwm yam excipients.HPMC kuj tseem siv rau hauv kev lag luam khoom noj ua cov thickener, emulsifier thiab stabilizer.Tsis tas li ntawd, nws yog siv nyob rau hauv ntau lwm yam lag luam xws li kev tu tus kheej, kev tsim kho thiab textile ntau lawm.
Muaj ob hom tseem ceeb ntawm HPMCs uas tau siv dav.Dissolving hom HPMC yog: sai dissolving HPMC thiab qeeb dissolving HPMC.
Instant HPMC yog ib hom HPMC nrog qib siab hloov pauv.Qhov no txhais tau hais tias tus nqi ntawm hydroxypropyl thiab methyl pawg ntxiv rau cov pob txha cellulose yog qhov siab.Qhov kev hloov pauv siab no ua rau muaj dej-soluble HPMC ntau dua, uas yaj sai sai hauv dej.
Instant HPMC muaj ntau yam kev siv hauv kev lag luam kws tshuaj.Nws feem ntau yog siv los ua ib qho disintegrant los pab cov ntsiav tshuaj thiab cov tshuaj ntsiav ua rau cov khoom me me sai dua.Qhov no yog qhov tseem ceeb vim tias nws tso cai rau kev tso tawm sai dua ntawm cov khoom xyaw nquag, uas tuaj yeem muaj txiaj ntsig zoo hauv qee yam kev siv, xws li tshuaj tua kab mob sai.
Fast-dissolving HPMC kuj tseem siv los ua cov ntawv khi rau cov ntsiav tshuaj thiab tshuaj ntsiav.Nws pab tuav cov ntsiav tshuaj lossis tshuaj ntsiav ua ke thiab tseem txhim kho cov yam ntxwv ntws ntawm cov khoom xyaw hmoov siv los ua cov ntsiav tshuaj lossis tshuaj ntsiav.
Hauv kev lag luam khoom noj khoom haus, HPMC tam sim no yog siv los ua cov thickener, emulsifier thiab stabilizer.Nws pab muab cov khoom noj kom zoo nkauj thiab ua kom lawv lub neej txee.
Kev lwj qeeb qeeb HPMC yog lwm HPMC nrog qib qis ntawm kev hloov pauv.Qhov no txhais tau hais tias nws tsis muaj dej soluble ntau dua li sai sai HPMC thiab yuav siv sij hawm ntev dua kom yaj hauv dej.
Kev ua kom qeeb qeeb HPMC feem ntau yog siv los ua tus neeg sawv cev tso tawm hauv kev lag luam tshuaj.Nws tuaj yeem siv los tsim cov ntsiav tshuaj thiab cov tshuaj ntsiav uas tso tawm cov khoom xyaw maj mam dhau lub sijhawm.Qhov no tuaj yeem muaj txiaj ntsig zoo hauv qee yam kev siv, xws li hauv kev kho mob ntev.
Kev ua kom qeeb qeeb HPMC kuj tseem siv rau hauv kev lag luam tu tus kheej thiab tshuaj pleev ib ce.Nws yog siv los ua cov thickener, emulsifier thiab stabilizer nyob rau hauv ntau yam khoom xws li tshuaj zawv plaub hau, tshuaj pleev ib ce thiab cream.
Hauv kev tsim kho kev lag luam, maj mam dissolving HPMC yog siv los ua cov thickener rau cov khoom siv cement.Nws pab txhim kho kev ua haujlwm ntawm cov cement thiab kuj txhim kho cov adhesion ntawm cov khoom rau saum npoo.
Hauv kev lag luam textile, maj mam dissolving HPMC yog siv los ua tus neeg sawv cev sizing.Nws pab kom muaj zog thiab nruj ntawm fiber ntau, uas tuaj yeem txhim kho qhov zoo ntawm cov ntaub ntawv tiav.
Zuag qhia tag nrho, ob qho tib si sai-dissolving thiab qeeb-solving HPMCs muaj ntau yam khoom muaj txiaj ntsig thiab nrhiav cov ntawv thov hauv ntau qhov kev lag luam.Ob hom soluble ntawm HPMC muab cov chaw tsim khoom ntau yam kev xaiv thaum xaiv cov cellulose ether rau lawv daim ntawv thov tshwj xeeb.
Hauv kev xaus, HPMC yog ntau yam thiab muaj txiaj ntsig zoo nrog ntau daim ntawv thov hauv ntau qhov kev lag luam.Ntau hom HPMC, xws li HPMC yaj sai sai thiab qeeb-solving HPMC, muab cov chaw tsim khoom nrog ntau yam kev xaiv thaum xaiv cellulose ethers rau lawv cov ntawv tshwj xeeb.Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias HPMC yog ib qho chaw nyab xeeb thiab siv dav siv ntau yam uas tau tshawb fawb thiab sim, thiab nws muaj ntau yam txiaj ntsig rau cov tuam txhab thiab cov neeg siv khoom.
Post lub sij hawm: Aug-22-2023