Ko te kaha pupuri wai o te hydroxypropyl methylcellulose e whakawhirinaki ana ki te ihirangi hydroxypropyl.I raro i nga ahuatanga ano, ka kaha ake te kaha pupuri wai o te hydroxypropyl methylcellulose teitei, a ka tika te whakaheke i te methoxy ihirangi o taua ihirangi hydroxypropyl..Ko te teitei ake o te ihirangi o te hydroxypropyl methylcellulose, ko te nui ake o tona pokey, na i te wa e whiriwhiri ana i tetahi hua, me whiriwhiri e koe te hua e pai ana ki a koe i runga i te kaupapa o te hua.
Ko te pāmahana me etahi atu mea ka pa ki te pupuri wai o te hydroxypropyl methylcellulose.
Te wera o te reera:
Cellulose ether HPMC he teitei te wera o te waiariki me te pupuri wai pai;engari, he ngoikore te pupuri wai.
Viscosity o te cellulose ether HPMC:
A, no te piki te pokey o te HPMC, ka piki ano tona pupuri wai;ka piki ake te viscosity ki tetahi whānuitanga, ka heke te piki o te pupuri wai.
Cellulose ether HPMC riterite:
He rite te tauhohenga o te HPMC, he rite te tohatoha o te methoxyl me te hydroxypropoxyl, he pai te pupuri wai.
Inenga HPMC Cellulose ether:
Ko te nui ake o te inenga, ko te teitei ake o te reiti pupuri wai me te tino kitea te paanga pupuri wai.
I te wa e 0.25~0.6% te nui o te taapiri, ka tere te tere o te pupuri i te wai me te pikinga o te moni taapiri;ka piki ake te moni taapiri, ka heke te pikinga o te reiti pupuri wai.
I roto i te poto, ko te pupuri wai o te HPMC e pa ana ki nga ahuatanga penei i te mahana me te viscosity, me tana pupuri wai e pa ana ki te nui o te hydroxypropyl methylcellulose kua tapiritia.Ina tae te nui o te hydroxypropyl methylcellulose ki tetahi uara, ka eke tana mahi pupuri wai ki te taurite.
Wā tuku: Feb-23-2023