HPMC lossis HydroxyPropyyl methylulose yog qhov sib xyaw ua ke nyob rau hauv ntau yam kev lag luam suav nrog cov khoom lag luam suav nrog kev lag luam, tshuaj pleev ib ce thiab kev tsim kho. Nov yog qee cov lus nug uas nquag nug txog HPMC:
Dab tsi yog hypromellose?
HPMC yog cov hluavtaws polymer ua los ntawm cellulose, lub ntuj tsim muaj nyob hauv cov nroj tsuag. Nws yog tsim los ntawm kev siv cellulation cellulose nrog methyl thiab hydroxypropropyl los tsim cov hmoov dej-soluble dej.
HPMC HPMC yog dab tsi?
HPMC muaj ntau yam siv hauv ntau yam lag luam. Hauv kev lag luam kws tshuaj, nws yog siv los ua phau ntawv, tuab thiab emulsifier rau cov ntsiav tshuaj, tsiav tshuaj thiab tshuaj pleev. Hauv kev lag luam kom hniav zoo nkauj, nws yog siv los ua cov tuab tuab, emulsifier thiab stabilizer nyob cream, tshuaj thiab ua kom zoo nkauj. Hauv kev tsim kho kev tsim kho, nws yog siv los ua cov phau ntawv, tuab thiab dej-khaws tus neeg sawv cev hauv cov cement thiab tshuaj tua kab.
HPMC puas muaj kev nyab xeeb?
HPMC yog feem ntau suav tias muaj kev nyab xeeb thiab tsis muaj tshuaj lom. Nws yog dav siv nyob rau hauv cov tshuaj thiab kev lag luam kom hniav zoo nkauj uas muaj kev nyab xeeb thiab kev coj dawb huv yog ntawm qhov tseem ceeb tshaj plaws. Txawm li cas los xij, ib yam li muaj tshuaj lom neeg, nws yog ib qho tseem ceeb kom kov HPMC nrog saib xyuas thiab ua raws li kev ceev faj kev nyab xeeb.
Puas yog HPMC biodegradable?
HPMC yog biodegradable thiab tuaj yeem tawg los ntawm cov txheej txheem ntuj nyob rau lub sijhawm. Txawm li cas los xij, tus nqi ntawm biodegradation yog nyob ntawm ntau yam xws li kub, av noo thiab muaj ntawm cov kab mob me me.
Tau siv HPMC tuaj yeem siv hauv cov khoom noj?
HPMC tsis raug pom zoo rau kev siv hauv cov zaub mov hauv qee lub tebchaws, suav nrog Tebchaws Asmeskas. Txawm li cas los xij, nws raug pom zoo ua khoom noj ntxiv hauv lwm lub teb chaws xws li Nyij Pooj thiab Suav. Nws yog siv los ua cov tuab thiab muaj stabilizer nyob rau qee cov zaub mov, xws li cov mis nyuj khov thiab cov khoom ci.
HPMC tau ua li cas?
HPMC yog tsim los ntawm kev kho cellulation cellulose, lub ntuj tsim muaj nyob hauv cov nroj tsuag. Cellulose yog thawj zaug kho nrog txoj kev daws teeb meem alkaline kom tshem tawm impurities thiab ua rau nws muaj ntau dua li reassive. Nws ces reacts nrog kev sib xyaw ntawm methyl chloride thiab propylene oxide los ua HPMC.
Dab tsi yog cov qib sib txawv ntawm HPMC?
Muaj ntau ntau cov qib HPMC, txhua tus muaj cov khoom sib txawv thiab cov khoom sib txawv. Cov qib kawm yog nyob ntawm cov qib xws li kev hnyav molecular, cov qib ntawm hloov chaw, thiab kub. Cov qib sib txawv ntawm HPMC tau siv nyob rau hauv cov ntawv thov sib txawv hauv kev lag luam sib txawv.
HPMC puas tuaj yeem sib xyaw nrog lwm cov tshuaj?
HPMC tuaj yeem sib xyaw nrog lwm cov tshuaj ua haujlwm los ua cov khoom sib txawv thiab cov yam ntxwv. Nws yog feem ntau ua ke nrog lwm cov polymers xws li polyvinylprolidine (pvp) thiab polyethylene glycol (peg) los txhim kho nws cov hlua khi thiab thickenies.
HPMC khaws cia li cas?
HPMC yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav qhov chaw ntawm noo noo thiab lub hnub ncaj qha. Nws yuav tsum tau muab khaws cia rau hauv cov airtight ntim kom tiv thaiv kev sib kis.
Dab tsi yog qhov zoo ntawm kev siv HPMC?
Qhov zoo ntawm kev siv HPMC suav nrog cov versatility, kua solubility, thiab biodegradability. Nws tseem tsis muaj tshuaj lom, ruaj khov, thiab sib haum nrog ntau lwm yam tshuaj lom neeg. Los ntawm kev hloov pauv ntawm qhov hloov pauv thiab hnyav hnyav, nws cov khoom tuaj yeem hloov kho tau yooj yim, ua rau nws haum rau ntau yam kev siv.
Lub sij hawm Post: Jun-19-2023