Iqhaza le-cellulose ku-dat-selveling data

I-Cellulose Ether yigama elijwayelekile lochungechunge lwemikhiqizo ekhiqizwa ukusabela kwe-Alkali Cellulose kanye ne-ejenti ethembisa ngaphansi kwezimo ezithile. I-Alkali Cellulose ithathelwa indawo ama-ejenti ahlukile aphelelisayo ukuthola izitha ze-cellulose ezihlukile. Ngokusho kwezakhiwo ze-Ionization zokufakaza kwabanye, ama-cellulose asher angahlukaniswa izigaba ezimbili: ionic (njenge-carboxymethyl cellulose) ne-nonic (njenge-methyl cellulose (efana ne-methyl cellulose). Ngokusho kohlobo lwe-substituent, i-cellulose ether ingahlukaniswa i-monoJe (njenge-methyl cellulose) futhi i-ether exubile (efana ne-hydroxypropylylyl methyl celtule). Ngokusho kwe-soubity ehlukene, ingahlukaniswa inyumbazane yamanzi (efana ne-hydroxyethyl cellulose) kanye ne-organic solvent-soluble (njenge-ethyl cellulose (enjenge-ethyl clulsule), futhi i-cellulose enamanzi ihlukaniswe ngohlobo olusheshayo kanye ne-surface yaphathwe uhlobo lokuchitheka okubambezelekile.

Ngemuva kokuthi i-cellulose ether ku-motar ichithwe emanzini, ukusatshalaliswa okusebenzayo futhi okufanayo kwezinto eziqinisekisiwe nokwenziwayo ohlelweni kuqinisekiswa ngenxa yomsebenzi ongaphezulu, kanye ne-colloid evikelayo, "kusonga" izihlayiya eziqinile. Yakha ifilimu lokuthambisa, yenza uhlelo lodaka luzinze ngokwengeziwe, futhi luthuthukise uketshezi lodaka ngesikhathi senqubo yokuxuba kanye nokushelela kokwakhiwa.

Ngenxa yokwakheka kwayo kwamangqamuzana, isixazululo se-cellulose ether senza amanzi owesimende angalulame ukuba alahlekelwe, futhi kancane kancane akhulule isikhathi eside isikhathi eside, anikeze udaka ngokugcinwa kwamanzi okuhle nokusebenza okuhle.

Uhlobo olusezingeni eliphezulu lokuzimela, olune-viscosity ephansi hydroxypropprosell methylcellulose ether. Njengoba wonke umhlabathi wemvelo ukhiqizwe ngokungenelela okuncane ngabasebenzi bezokwakha, uma kuqhathaniswa nenqubo eyedlule yencwajana, i-Flatness kanye nejubane lokwakha athuthukiswa kakhulu. Isikhathi sokuxuba esisezingeni elisezingeni eliphakeme sisebenzisa ngokunenzuzo ukugcinwa kwamanzi okuhle kwe-hydroxypropyllylylylylylylylylylylylylylylyllose. Njengoba ukuzilingisa kudinga ukuthi udaka olushukumisayo olushukumisayo lungalinganisa ngokuzenzakalela emhlabathini, okokusebenza kwamanzi kukhulu. Ngemuva kokungeza i-HPMC, kuzolawula umhlabathi ukugcinwa kwamanzi kobuso akubonakali, okwenza amandla angaphezulu aphezulu ngemuva kokomiswa, futhi i-shrinkage incane, okunciphisa imifantu. Ukungezwa kwe-HPMC kuhlinzeka nokuvunywa, okungasetshenziswa njengosizo lwe-anti-sedimentation, kuthuthukise uketshezi nokuncipha, futhi kuthuthukise ukusebenza kahle kokuvula umhlabathi.

I-cellulose enhle inesimo esibonakalayo esibonakalayo kanye nobuningi obuncanyana; I-Pure HPMC inomhlophe omuhle, izinto ezingavuthiwe ezisetshenziselwa ukukhiqizwa zimsulwa, ukusabela kungcono kakhulu futhi akukho nto ukungcola, ukudluliselwa okunamanzi kukhulu, futhi akukho i-ammonia, isitashi kanye notshwala. Ukunambitha, u-fibrous ngaphansi kwesibonakhulu noma ingilazi yokukhulisa.