Hydroxypropyl methyl cellulose, uyazi?

1.I-HPMCihlukaniswe ngohlobo olusheshayo nohlobo lokuhlakazeka okusheshayo.

Uhlobo lwe-HPMC esheshayo Displingrion Displix luhlanganiswe nezinhlamvu zezincwadi, futhi i-GYLOXAL kumele ingezwe ngesikhathi sokukhiqiza.

Uhlobo lwe-HPMC master akwengezi noma yiziphi izinhlamvu, njenge- "100000" zisho "i-100000 viscosity.

2. Nge noma ngaphandle s, izici zihlukile

Ukusabalalisa ngokushesha i-HPMC kusabalalisa ngokushesha lapho kuhlangana namanzi abandayo bese kunyamalala emanzini. Ngalesi sikhathi, uketshezi alunakubonakala, ngoba i-HPMC ihlakazeka emanzini ngaphandle kokuchithwa kwangempela. Ngemuva kwemizuzu engaba mibili, i-viscosity yoketshezi inyuka kancane kancane, yakha i-colloid ebukhali esobala.

I-HPMC esheshayo ingahlakazeka ngokushesha emanzini ashisayo cishe ngo-70 ° C. Lapho amazinga okushisa ehla emazingeni okushisa athile, ukubonwa kuzovela kancane kancane kuze kube kwakhiwa i-colloid esobala ye-viscous.

3.Ngaphandle noma ngaphandle kwe-S, inhloso yehlukile

I-HPMC esheshayo ingasetshenziswa kuphela ku-putty powder nodaka. Ku-glue ketshezi, ukupenda kanye nokugeza imikhiqizo, kuzoba khona into ehlelekile futhi ngeke isetshenziswe.

Kusatshalaliswa ngokusheshaI-HPMCInezinhlobonhlobo zezicelo futhi ingasetshenziswa ku-putty powder, udaka, i-glue key, upende, kanye nokugeza imikhiqizo ngaphandle kwe-contraindication.

4.Dissolving indlela

4-1. 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 endaweni yamanzi ekuqaleni, kepha kancane kancane ihlakazeka ukuze kwakhiwe i-slurry efanayo. Isixazululo saphola ngenkathi sivusa.

4-2. Ngenye indlela, ukushisa okungu-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 inhlanganisela ephumayo.

4-3. I-meshele ye-cellulose ilungile, futhi ikhona njengezinhlayiya ezithile ezincane ku-powder eshukumisayo, futhi iyancibilika ngokushesha lapho ihlangana namanzi ukuze yakhe ukubonakala okudingekayo.

4-4. Kancane kancane futhi ngokulinganayo engeza iselula lokushisa kwekamelo, futhi uqhubeke uvuselelwa kuze kube yilapho kudalwa isixazululo esibonakalayo.

5. Izici ezithinta ukugcinwa kwamanzi kwe-hydroxypropylylylylylylylylylylylylylylylylylylylylylyllop methyl cellulose?

5-1. I-CelluleOse Ether HPMC HOMEGENEINETIUNT

I-HPMC ephendulwe ngokulinganayo, i-Methoxyl kanye ne-hydroxypropoposyls zisatshalaliswa ngokulinganayo, futhi izinga lokugcina lamanzi liphezulu.

5-2. I-Cellose Ether HPMC Thermal Gel Temperature

Ukushisa okushisa kakhulu kwe-gel lokushisa, kuphakama inani lokugcinwa kwamanzi; Ngaphandle kwalokho, ukwehlisa inani lokugcinwa kwamanzi.

5-3. I-Cellulose Ether HPMC yokuqagela

Lapho i-viscosity ye-HPMC inyuka, inani lokugcina amanzi liyanda; Lapho i-viscosity ifinyelela ezingeni elithile, ukwanda kwamazinga okugcina amanzi kuvame ukuba mnene.

6.Addition inani le-cellulose ether hpmc

Kukhudlwana inani le-cellulose etherI-HPMCKungezwe, ukukhuphuka kwezinga lokugcina amanzi kanye nokuba ngcono kokugcina amanzi.

Ebangeni le-0.25-0.6%, izinga lokugcina amanzi lenyuka ngokushesha ngokunyuka kwenani lokungezwa; Lapho inani lokungezwa likhula ngokwengeziwe, ukwandisa ukuthambekela kwamanani okugcinwa kwamanzi wehlise phansi.