HydroxyPropyyl methylulose yog yuav luag tsis muaj aganol thiab acetone. Cov tshuaj aqueous yog ruaj khov nyob rau hauv chav tsev kub thiab tuaj yeem gel ntawm qhov kub. Feem ntau ntawm cov hydroxypropyl methylcellose ntawm kev ua lag luam tam sim no belongs rau cov dej txias (chav sov (chav sov dej, coj mus rhaub dej) tseem ceeb. Dej Txias HPMC yuav yooj yim dua thiab muaj kev nyab xeeb dua. HPMC xav tau ncaj qha ntxiv rau dej dej txias tom qab kaum rau cuaj caum feeb rau maj thicken. Yog tias nws yog tus qauv tshwj xeeb, nws yuav tsum tau raug do nrog dej kub kom disperse, thiab tom qab ntawd nchuav rau hauv dej txias kom yaj tom qab txias.
Thaum HPMC cov khoom muaj ncaj qha ntxiv rau dej, lawv yuav coagulve thiab tom qab ntawd yaj, tab sis qhov kev sib cais no yog qeeb heev thiab nyuaj. Peb qhov kev sib cais no tau pom zoo, thiab cov neeg siv tuaj yeem xaiv txoj kev yooj yim tshaj plaws raws li kev siv dej txias tam sim no HPMC).
Dissolving txoj kev thiab kev ceev faj ntawm HPMC
1. Cov txheej txheem dej txias: Thaum nws yuav tsum tau txuas ntxiv rau qhov ntsuas kub qub, nws yog qhov zoo tshaj plaws los siv cov dej dej ntws txias. Tom qab ntxiv cov viscosity, kev sib xws yuav nce rau qhov ntsuas tau.
2. Hmoov sib xyaw txoj kev: HPMC hmoov thiab ntau dua ntawm cov hmoov sib xyaw ua ke, thiab tom qab ntxiv cov dej kom yaj tau lub sijhawm no thiab yuav tsis muaj agglomerate. Qhov tseeb, tsis hais dab tsi ntawm hydroxypropyl methylulose. Nws tuaj yeem muab sib xyaw kom ncaj qha rau lwm cov ntaub ntawv.
3. Organic huab cua: HPMC yog pre-dispersed lossis wetted nrog ethanol, etylene glycoled hauv dej, thiab tom qab ntawd HPMC kuj tuaj yeem yaj tau yooj yim.
Thaum lub sijhawm cov txheej txheem sib cais, yog tias muaj agglomeration, nws yuav qhwv. Qhov no yog qhov tshwm sim ntawm kev sib tsoo tsis sib haum, yog li nws yog qhov tsim nyog kom ua kom nrawm rau lub nrawm. Yog tias muaj npuas hauv kev sib cais, nws yog vim huab cua tshwm sim los ntawm kev tsis sib xws ntawm 2- 12 teev nyob ntawm qhov sib xws ntawm kev daws teeb meem) lossis nqus tawm, nias, nias thiab lwm txoj hauv kev Txhawm rau tshem tawm, ntxiv tus nqi tsim nyog ntawm defoamer tseem tuaj yeem tshem tawm cov xwm txheej no. Ntxiv tus nqi tsim nyog ntawm Defoamer tseem tuaj yeem tshem tawm cov xwm txheej no.
Txij li hydroxypropy yog siv nyob rau hauv ntau yam kev lag luam, nws yog qhov tseem ceeb tshaj plaws rau tus tswv ntawm kev sib cais ntawm hydroxypropylulose rau nws siv raug. Ib qho ntxiv, cov neeg siv tau nco qab kom them sai sai rau lub hnub tiv thaiv, tiv thaiv kev tiv thaiv thaum siv, zam qhov chaw ncaj qha, thiab chaw nyob hauv qhov chaw kaw thiab qhuav. Zam kev sib cuag nrog cov chaw tiv thaiv kab thiab zam qhov kev tsim cov hmoov av ntau hauv cov chaw kaw kom tiv thaiv kev phom sij tawg.
Ncua Sij Hawm: Jun-20-2023