Uyini umehluko phakathihydroxypropyl methylcellulose(HPMC) nge noma ngaphandle s?
1. I-HPMC ihlukaniswe ngohlobo olusheshayo kanye nohlobo olusheshayo lokuhlakazeka
Uhlobo lwe-HPMC olusheshayo lokusakaza lunikezwe uhlamvu lwencwadi. Ngesikhathi sokukhiqiza, i-GLLOXAL kufanele ingezwe.
Uhlobo lwe-HPMC master akwengezi noma yiziphi izinhlamvu, njenge- "100000" is "100000 viscosity Fast Dispering Disperity Uhlobo HPMC".
2. Nge noma ngaphandle s, izici zihlukile
Ukusabalalisa ngokushesha i-HPMC isabalalisa ngokushesha emanzini abandayo bese inyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala, ngoba i-HPMC ihlakazeka emanzini kuphela, futhi akukho ukuhlukaniswa kwangempela. Ngemuva kwemizuzu engaba mibili, ukubonakala koketshezi kukhuphuka kancane kancane, kwakha uketshezi olunamathelayo olusobala. Colloid obukhulu.
I-HPMC esheshayo ingasabalalisa ngokushesha emanzini ashisayo cishe ngo-70 ° C. Lapho amazinga okushisa ehla emazingeni okushisa athile, i-viscosity avele kancane kuze kube kwakhiwa i-colloid esobala.
3. Nge noma ngaphandle s, inhloso yehlukile
I-HPMC esheshayo ingasetshenziswa kuphela ku-putty powder nodaka. Ku-liquid glues, ukumboza kanye nokuhlanza izinto, ukuqunjelwa kuzovela futhi ngeke kusetshenziswe.
I-HPMC esakaza ngokushesha inezinhlobonhlobo zezicelo. Ingasetshenziswa ku-putty powder, udaka, i-glue key, upende, kanye nokugeza imikhiqizo ngaphandle kwe-contraindication.
Indlela yokuchithwa
1. Thatha inani elidingekayo lamanzi ashisayo, ulifake esitsheni bese usishisa ngenhla kwama-80 ° C, bese kancane kancane engeza lo mkhiqizo ngaphansi kokushukumisa kancane. I-cellulose intanta emanzini ekuqaleni, kepha kancane kancane ihlakazeka ukuze kwakhiwe i-slurry efanayo. Pholisa ikhambi ngokuvusa.
2. Noma ukushisa 1/3 noma 2/3 kwamanzi ashisayo kungaphezulu kwama-85 ° C, engeza i-cellulose ukuthola i-slurry yamanzi eshisayo, bese ufaka inani elisele lamanzi abandayo, hlala uvuse, futhi upholise ingxubevange, bese upholisa ingxubevange, bese upholisa ingxubevange, bese upholisa ingxubevange, futhi upholise inhlanganisela ephumayo.
I-3. I-cellulose inenombolo enhle ye-mesh, futhi ikhona njengezinhlayiyana ezizodwa ezincane ku-powder evuselelwa ngokufanayo, futhi iyancibilika ngokushesha lapho ihlangabezana namanzi ukwakha i-viscosity edingekayo.
4. Ngeza i-cellulose kancane futhi ngokulinganayo emazingeni okushisa asekamelweni, futhi uqhubeke uvuse phakathi kwenqubo yokungezwa kuze kukhekeke isisombululo esibonakalayo.
Iziphi izici ezithinta ukugcinwa kwamanzi kwe-hydroxypropylylyll methylcellulose?
Ukugcinwa kwamanzi kweHydroxyproppropylylylylylylylylylyl hpmc umkhiqizo uqobo uvame ukuthinteka yizinto ezilandelayo:
1. I-cellulose ether hpmc homogeneity
I-HPMC ephendulwe ngokufanayo inokusatshalaliswa okufanayo kwamaqembu e-methoxy ne-hydroxypropoxy kanye nokugcinwa kwamanzi okuphezulu.
2. I-cellulose ether hpmc Thermal gel lokushisa le-gel
Ukushisa okushisa kakhulu kwe-gel lokushisa, kuphakama inani lokugcinwa kwamanzi; Ngaphandle kwalokho, ukwehlisa inani lokugcinwa kwamanzi.
3. I-cellulose ether hpmc viscosity
Lapho i-viscosity ye-HPMC inyuka, inani lokugcina amanzi liyanda; Lapho i-viscosity ifinyelela ezingeni elithile, ukwanda kwamazinga okugcina amanzi kuvame ukuba mnene.
Inani lezengezo le-cellulose ether hpmc
Kukhudlwana inani elingeziwe le-cellulose ether hpmc, kuphakama inani lokugcinwa kwamanzi kanye nokuba ngcono ukugcinwa kwamanzi.
Ebangeni le-0.25-0.6%, inani lokugcinwa kwamanzi likhuphuka ngokushesha ngokwanda kwenani lokungezwa; Lapho inani lokungezwa libuye lenyuka, umkhuba owandayo wamanani okugcinwa kwamanzi uya ngokuya kancane.
Isikhathi Sokuthumela: Oct-17-2022