Focus on Cellulose ethers

Uhlobo olusheshayo lwe-hydroxypropyl methylcellulose

Uhlobo olusheshayo lwe-hydroxypropyl methylcellulose

1. Okuqukethwe kwamanzi kuphezulu kakhulu, okuholela kokuqukethwe okuphansi kakhulu, okulingana nokunciphisa ukugxila kwesisombululo.
2. I-viscosity iphansi, futhi i-viscosity ephawulwe ayihambisani ne-viscosity yangempela.
3. Gcoba ngisho nangemva kokwengeza izithako, ngaphandle kwalokho izokwelulwa, ibe mncane phezulu futhi igqinsile phansi.
4. Inani le-PH lamanzi: Uma inani elingu-PH lamanzi likhulu kuno-8, ngisho noma lingezwe ngaphansi kokunyakaziswa, ngeke lenze isixazululo se-viscous ngokushesha. (Kodwa ngeke kuhambe kancane njengamahora angama-20). Uma inani le-pH lamanzi lingaphansi kuka-6.5, linganyakaziswa ngisho nangemva kokwengeza izinto. Kodwa futhi kudinga isikhathi esithile sokuhlakazeka. Lesi sikhathi sisahlobene nenani le-pH. Lapho i-pH iphansi, isikhathi eside. Kunconywa ukuthi uyengeze emanzini angathathi hlangothi, bese ulungisa inani le-pH ku-alkaline, futhi lizokwenza ngokushesha ukuhambisana. Yiqiniso, ngokuvamile asikho isidingo sokulungiswa okukhethekile ekusetshenzisweni kwangempela, futhi ezinye izinto eziningi zizokhuphula ngokuzenzakalelayo inani le-pH.


Isikhathi sokuthumela: Jan-27-2023
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