Focus on Cellulose ethers

Liphello tsa Tšebeliso e Fosahetseng ea Hydroxypropyl Methyl Cellulose

Mabapi le mokhoa oa ts'ebetso oa setsebi o amohetsoeng ke lihlahisoa tsa lik'hemik'hale, hoa hlokahala ho hohela tlhokomelo le tlhokomelo ea mokhanni e mong le e mong oa ts'ebetso, hobane sena ke senotlolo sa ho etsa liqeto ka katleho le ho phethoa hantle ha morero o mong le o mong oa kaho.Haeba mokhoa oa ho e etsa o ka 'na oa ama ka ho teba tšebeliso e sireletsehileng ea sehlahisoa, mohlala, hydroxypropyl methylcellulose, eo hona joale e tsebahalang haholo likarolong tse sa tšoaneng, a re ke re e shebe hammoho ka tlase.

Ho boloka metsi a methylcellulose ho ipapisitse le palo ea eona ea tlatsetso, viscosity, botle ba likaroloana le sekhahla sa ho qhibiliha.Ka kakaretso, haeba palo ea tlatsetso e le kholo, botle bo nyane, 'me viscosity e kholo, sekhahla sa ho boloka metsi se phahame.Har'a bona, palo ea ho eketsoa e na le tšusumetso e kholo ka ho fetisisa ho tekanyo ea ho boloka metsi, 'me boemo ba viscosity ha bo lekane ka ho toba le tekanyo ea ho boloka metsi.Sekhahla sa ho qhibiliha haholo-holo se itšetlehile ka tekanyo ea phetoho ea bokaholimo ba likaroloana tsa cellulose le botle ba likaroloana.Har'a li-ether tsa cellulose tse ka holimo, methyl cellulose le hydroxypropyl methyl cellulose li na le litekanyetso tse phahameng tsa ho boloka metsi.

Methylcellulose e qhibiliha ka metsing a batang, 'me ho tla ba thata ho qhibiliha ka metsing a chesang.Tharollo ea eona ea metsi e tsitsitse haholo maemong a pH = 3 ~ 12.E na le tumellano e ntle le starch, guar gum, joalo-joalo le li-surfactants tse ngata.Ha mocheso o fihla mocheso oa gelation, gelation e etsahala.

Mabapi le tšebeliso e nepahetseng ea hydroxypropyl methylcellulose eo re u tsebisitseng eona ka holimo, hoa hlokahala ho hohela tlhokomelo le tlhokomelo ea moetsi e mong le e mong, e le ho netefatsa ho sebetsa ha sehlahisoa sena sa lik'hemik'hale.


Nako ea poso: Mar-30-2023
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