Ukusetshenziswa kwe-Hpmc Powderingahlakazwa ngendlela efanayo nangempumelelo odakeni lukasimende kanye nemikhiqizo esekelwe ku-gypsum, igoqe zonke izinhlayiya eziqinile futhi yenze ifilimu yokumanzisa. Umswakama osesisekelweni udedelwa kancane kancane isikhathi eside, futhi uthola ukusabela kwe-hydration ngezinto ezingaphili zikasimende, ngaleyo ndlela kuqinisekiswe amandla okubopha namandla okucindezela kwezinto.
Ngakho-ke, ekwakhiweni kwehlobo lokushisa eliphezulu, ukuze kuzuzwe umphumela wokugcina amanzi, kuyadingeka ukwengeza amanani anelei-hydroxypropyl methyl cellulosengokusho kwefomula, ngaphandle kwalokho izinkinga zekhwalithi ezifana nokunganele kwe-hydration, amandla ancishisiwe, ukuqhekeka, ukugoba, nokugoqa okubangelwa ukomiswa ngokushesha kuzokwenzeka, futhi kuzokwandisa nobunzima babasebenzi ekwakheni. Njengoba izinga lokushisa lincipha, inani le-hydroxypropylmethylcellulose lingancishiswa kancane kancane, futhi umphumela ofanayo wokugcina amanzi ungafinyelelwa.
Ukugcinwa kwamanzi kwe-hydroxypropyl methyl cellulose kuthonywa izinga lokushisa kanye nalezi zinto ezilandelayo:
1. I-Homogeneity ye-hydroxypropyl methyl cellulose
I-Homogeneousi-hydroxypropyl methyl cellulose, Iqembu le-Methoxy kanye ne-hydroxypropyl zisakazwa ngokulinganayo, futhi izinga lokugcinwa kwamanzi liphezulu.
2. Izinga lokushisa lejeli elishisayo le-HPMC
Ijeli elishisayo linokushisa okuphezulu kanye nezinga eliphezulu lokugcinwa kwamanzi; Ngokuphambene, izinga lokugcinwa kwamanzi liphansi.
3. I-Hydroxypropylmethylcellulosei-viscosity
Lapho i-viscosity yeI-HPMCliyakhula, izinga lokugcinwa kwamanzi liyakhula; Lapho i-viscosity ifinyelela izinga elithile, ukwanda kokugcinwa kwamanzi kuvame ukuba kancane kancane.
4. Inani elingeziwe le-hydroxypropyl methyl cellulose
Uma likhulu inani le-hydroxypropyl methyl cellulose elingeziwe, izinga lokugcinwa kwamanzi likhuphuka futhi kuba ngcono umphumela wokugcina amanzi. Ebangeni lokuhlanganisa okungu-0.25-0.6%, izinga lokugcinwa kwamanzi likhuphuka ngokushesha ngokwenyuka kwenani elingeziwe; Njengoba inani elingeziwe likhula, inkambiso ekhulayo yokugcinwa kwamanzi iyancipha
Isikhathi sokuthumela: Jul-10-2023