HPMC los yog hydroxypropyl methylcellulose yog ib qho kev sib xyaw uas siv ntau hauv kev lag luam xws li tshuaj, tshuaj pleev ib ce thiab kev tsim kho.Nov yog qee cov lus nug uas nquag nug txog HPMC:
Hypromellose yog dab tsi?
HPMC yog ib qho hluavtaws polymer ua los ntawm cellulose, ib yam khoom muaj nyob hauv cov nroj tsuag.Nws yog tsim los ntawm kev hloov kho cellulose nrog methyl thiab hydroxypropyl pawg los tsim cov dej-soluble hmoov.
HPMC siv rau dab tsi?
HPMC muaj ntau yam siv hauv kev lag luam sib txawv.Hauv kev lag luam kws tshuaj, nws yog siv los ua ib daim ntawv khi, thickener thiab emulsifier rau cov ntsiav tshuaj, tshuaj ntsiav thiab tshuaj pleev.Hauv kev lag luam tshuaj pleev ib ce, nws yog siv los ua cov thickener, emulsifier thiab stabilizer nyob rau hauv cream, lotions thiab make-up.Nyob rau hauv kev tsim kho kev lag luam, nws yog siv los ua ib tug binder, thickener thiab dej-retaining tus neeg sawv cev nyob rau hauv cov cement thiab mortar.
Puas yog HPMCs muaj kev nyab xeeb?
HPMC feem ntau suav hais tias muaj kev nyab xeeb thiab tsis muaj tshuaj lom.Nws yog dav siv hauv kev lag luam tshuaj thiab tshuaj pleev ib ce uas muaj kev nyab xeeb thiab purity yog qhov tseem ceeb tshaj plaws.Txawm li cas los xij, ib yam li txhua yam tshuaj, nws yog ib qho tseem ceeb uas yuav tau saib xyuas HPMC thiab ua raws li kev ceev faj txog kev nyab xeeb.
Puas yog HPMC biodegradable?
HPMC yog biodegradable thiab tuaj yeem tawg los ntawm cov txheej txheem ntuj thaum lub sijhawm.Txawm li cas los xij, tus nqi ntawm biodegradation nyob ntawm ntau yam xws li kub, av noo thiab muaj cov kab mob.
HPMC tuaj yeem siv rau hauv cov zaub mov?
HPMC tsis pom zoo siv rau hauv cov zaub mov hauv qee lub tebchaws, suav nrog Tebchaws Meskas.Txawm li cas los xij, nws tau pom zoo ua zaub mov ntxiv hauv lwm lub tebchaws xws li Nyiv thiab Tuam Tshoj.Nws yog siv los ua cov thickener thiab stabilizer hauv qee cov khoom noj, xws li cov dej khov thiab cov khoom ci.
HPMC ua li cas?
HPMC yog tsim los ntawm chemically modifying cellulose, ib yam khoom muaj nyob rau hauv cov nroj tsuag.Cellulose yog thawj zaug kho nrog cov tshuaj alkaline kom tshem tawm cov impurities thiab ua rau nws muaj zog dua.Nws ces reacts nrog ib tug sib tov ntawm methyl chloride thiab propylene oxide los ua HPMC.
Cov qib sib txawv ntawm HPMC yog dab tsi?
Muaj ntau qib ntawm HPMC, txhua tus muaj cov khoom sib txawv thiab cov khoom sib txawv.Cov qhab nia yog nyob ntawm yam xws li qhov hnyav molecular, qib hloov pauv, thiab gelation kub.Cov qib sib txawv ntawm HPMC yog siv rau hauv cov ntawv thov sib txawv hauv kev lag luam sib txawv.
HPMC puas tuaj yeem sib xyaw nrog lwm yam tshuaj?
HPMC tuaj yeem sib xyaw nrog lwm cov tshuaj los tsim cov khoom sib txawv thiab cov yam ntxwv.Nws feem ntau ua ke nrog lwm cov polymers xws li polyvinylpyrrolidone (PVP) thiab polyethylene glycol (PEG) los txhim kho nws cov khoom sib txuas thiab thickening.
HPMC khaws cia li cas?
HPMC yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav kom deb ntawm noo noo thiab tshav ntuj ncaj qha.Nws yuav tsum tau khaws cia rau hauv lub thawv airtight kom tsis txhob muaj kab mob.
Qhov zoo ntawm kev siv HPMC yog dab tsi?
Qhov zoo ntawm kev siv HPMC suav nrog nws cov khoom siv ntau yam, dej solubility, thiab biodegradability.Nws kuj yog non-toxic, ruaj khov, thiab sib haum nrog ntau lwm yam tshuaj.Los ntawm kev hloov cov degree ntawm kev hloov pauv thiab qhov hnyav molecular, nws cov khoom tuaj yeem hloov kho tau yooj yim, ua rau nws haum rau ntau yam kev siv.
Post lub sij hawm: Jun-19-2023