HPMC, tseem hu ua hydroxypropyl methylcellulose, yog ntau yam polymer uas siv dav hauv kev lag luam tshuaj, zaub mov thiab kev tsim kho. Nws yog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab thiab tsis qab, uas muaj ntau yam txiaj ntsig xws li thickening, khi thiab emulsifying zog. Ib qho txiaj ntsig tseem ceeb ntawm HPMC yog tias nws tuaj yeem hloov kho tau yooj yim rau ntau yam kev siv. Txawm li cas los xij, kev nkag siab yuav ua li cas sib txawv HPMC ntshiab los ntawm HPMC tsis huv yog qhov tseem ceeb kom tau txais txiaj ntsig zoo tshaj plaws los ntawm cov khoom siv ntau yam no. Hauv tsab xov xwm no, peb yuav tham txog yuav ua li cas faib HPMC ntshiab thiab tsis yog HPMC.
HPMC ntshiab yog dab tsi?
Pure HPMC yog ua kom zoo heev thiab ntshiab hydroxypropyl methylcellulose. Vim nws cov khoom zoo thiab sib xws, nws feem ntau siv hauv kev lag luam tshuaj thiab zaub mov. HPMC ntshiab yog muab los ntawm ntuj cellulose thiab yog dav siv nyob rau hauv cov tshuaj formulations vim nws solubility, khi thiab viscosity zog. Cov tuam txhab ua haujlwm zoo HPMC yuav siv cov cellulose ntshiab ua cov khoom siv tsis siv cov ntawv siv los tsim cov HPMC ntshiab. Qhov no ua kom lub purity thiab sib xws ntawm HPMC cov khoom tsim.
Yuav txheeb xyuas HPMC li cas?
Lub purity ntawm HPMC yog qhov tseem ceeb hauv kev txiav txim siab nws qhov zoo thiab muaj txiaj ntsig zoo rau cov ntawv thov tshwj xeeb. Thaum xaiv HPMC cov khoom, nws yog ib qho tseem ceeb uas yuav tsum tau nrhiav cov cim ntawm purity kom ntseeg tau tias qhov zoo thiab muaj zog ntawm cov khoom.
- Tshawb xyuas cov txheej txheem tsim khoom
HPMC cov txheej txheem tsim khoom yog qhov tseem ceeb hauv kev txiav txim siab qhov zoo ntawm cov khoom kawg. Saib rau cov tuam txhab lag luam uas siv cov khoom ua kom zoo thiab ntshiab cellulose los tsim HPMC. Qhov no ua kom ntseeg tau tias cov khoom kawg tsis muaj impurities uas tuaj yeem cuam tshuam nws cov khoom.
- saib daim ntawv lo
Tshawb xyuas cov khoom lag luam rau HPMC ntshiab. Qee cov khoom HPMC tej zaum yuav muaj cov khoom siv ntxiv, xws li plasticizers lossis lwm yam polymers, uas tuaj yeem cuam tshuam cov khoom ntawm cov khoom kawg. Daim ntawv lo ntawm HPMC ntshiab yuav tsum hais tias nws tsis muaj additives lossis lwm yam impurities.
- Nrhiav cov kev xeem batch
Lub chaw tsim khoom muaj koob npe HPMC yuav ua batch kuaj xyuas kom paub tseeb tias cov khoom ua tau raws li cov qauv purity xav tau. Nrhiav cov khoom nrog cov txiaj ntsig kev xeem batch kom paub meej tias HPMC yog cov ntshiab.
HPMC impure yog dab tsi?
Impure HPMC yog HPMC uas muaj cov additives lossis lwm yam impurities uas cuam tshuam rau nws qhov zoo thiab sib xws. Impure HPMC feem ntau yog siv rau hauv kev tsim kho kev lag luam raws li ib tug khi thiab thickener rau xim, coatings thiab adhesives. impure HPMC feem ntau tsis tshua kim dua li HPMC ntshiab vim tias nws yog tsim los ntawm cov ntawv rov siv dua thiab cov ntaub ntawv pov tseg.
Yuav txheeb xyuas HPMC li cas?
Tsis zoo HPMC tuaj yeem txheeb xyuas tau ntau txoj hauv kev:
- Cov khoom siv raw
Tsis zoo HPMC feem ntau yog tsim los ntawm cov ntawv siv rov ua dua tshiab thiab cov ntaub ntawv pov tseg. Cov neeg tsim khoom ntawm HPMC tsis zoo yuav siv cov khoom siv qis qis, uas tuaj yeem ua rau impurities hauv cov khoom kawg.
- Nrhiav cov khoom ntxiv
Impure HPMC feem ntau muaj cov additives xws li yasizers, defoamers, thiab lwm yam impurities uas yuav cuam tshuam rau cov khoom ntawm cov khoom kawg. Cov additives no ua rau HPMC tsawg dua ntshiab thiab yuav txo tau nws cov potency.
- kos daim ntawv lo
Cov ntawv cim ntawm cov khoom tsis yog HPMC yuav qhia tau tias lawv muaj impurities lossis additives. Daim ntawv lo yuav sau hom thiab tus nqi ntawm cov khoom ntxiv uas muaj nyob hauv cov khoom.
nyob rau hauv xaus
Nyob rau hauv xaus, HPMC yog ib tug multifunctional polymer dav siv nyob rau hauv ntau yam lag luam vim nws cov yam ntxwv tshwj xeeb. Pure HPMC yog ib qho zoo heev thiab ntshiab daim ntawv ntawm hydroxypropyl methylcellulose, feem ntau siv nyob rau hauv kev lag luam kws tshuaj thiab zaub mov vim nws cov khoom zoo thiab sib xws. Ntawm qhov tod tes, impure HPMC muaj impurities thiab additives uas yuav cuam tshuam nws zoo thiab sib xws. Thaum muas HPMC cov khoom, nws yog ib qho tseem ceeb uas yuav tsum tau saib rau lub purity cim los xyuas kom meej cov khoom muaj zog thiab zoo. Peb cia siab tias tsab xov xwm no tau pab koj nkag siab yuav ua li cas paub qhov txawv ntawm HPMC los ntawm HPMC tsis huv.
Post lub sij hawm: Lub Xya hli ntuj-20-2023