Ngodaka oluxutshwe ngomumo, ukungezwa kwe-cellulose ether kuphansi kakhulu, kodwa kungathuthukisa kakhulu ukusebenza kodaka olumanzi, okuyisengezo esikhulu esithinta ukusebenza kokwakhiwa kodaka. indima ebalulekile ye-HPMC odakeni ngokuyinhloko yizici ezintathu, enye iwumthamo omuhle kakhulu wokugcina amanzi, okwesibili umphumela wokungaguquguquki kodaka, kanti okwesithathu ukuxhumana nosimende.
1. Uma kukhulu i-viscosity ye-cellulose ether, kuba ngcono ukusebenza kokugcinwa kwamanzi.
2. Uma sikhulu inani lesengezo se-cellulose ether odakeni, kuba ngcono ukusebenza kokugcinwa kwamanzi.
3. Ngosayizi wezinhlayiyana, ukucoleka kwezinhlayiyana, kuba ngcono nokugcinwa kwamanzi.
4. Ukugcinwa kwamanzi kwe-methyl cellulose ether kuncipha ngokunyuka kwezinga lokushisa.
Umphumela wokujiya we-hydroxypropyl methyl cellulose njenge-thickener uhlobene nosayizi wezinhlayiyana, i-viscosity nokuguqulwa kwe-hydroxypropyl methyl cellulose. Ngokuvamile, ukuphakama kwe-viscosity ye-cellulose ether, usayizi wezinhlayiyana ezincane, umphumela osobala kakhulu.
Iqhaza lesithathu lama-cellulose ethers ukuhlehlisa inqubo yokukhipha usimende. Ama-cellulose ethers anikeza udaka izinto eziwusizo ezihlukahlukene futhi anciphisa ukukhishwa kokushisa kwe-hydration kwangaphambi kwesikhathi kukasimende futhi abambezele inqubo yamandla okugaya usimende. Ukuphakama kokugcwala kwe-cellulose ether kujeli yamaminerali, kuba sobala kakhulu umphumela wokulibaziseka kokugeleza kwamanzi. Ama-cellulose ether awagcini nje ngokuhlehlisa isilungiselelo, kodwa futhi abambezela inqubo yokuqina yamasistimu odaka lukasimende. Ngokukhuphuka komthamo we-HPMC, isikhathi sokusetha sodaka sikhuphuke kakhulu.
Kafushane, odakeni oluxutshwe ngomumo, i-HPMC idlala indima yokugcina amanzi, ukuqina, ukubambezela amandla okufaka usimende nokuthuthukisa ukusebenza kokwakhiwa. Ikhono elihle lokugcina amanzi lenza ukugeleza kukasimende kuphelele, okungathuthukisa ukunamathela okumanzi kodaka olumanzi futhi kwandise amandla ebhondi odaka. Ngakho-ke, i-HPMC isetshenziswa kabanzi njengesengezo esibalulekile odakeni oluxutshwe ngomumo.
Isikhathi sokuthumela: Jan-20-2022