Umgomo wokugcina amanzi we-hydroxypropylllylylylyllose (HPMC)

I-Hydroxypropyllykyltulose HPMC i-ether engeyona eye-cellulose eyenziwe nge-polymer mattule cellulose ngokusebenzisa uchungechunge lokucutshungulwa kwamakhemikhali. Bangamaphunga, angenambisi futhi angenambisi futhi angenabuthi amhlophe powder omhlophe agcwala isixazululo esicacile noma esincanyana se-colloidal emanzini abandayo. Inezici zokuqina, ukubopha, ukuhlakazeka, ukuhlukaniswa, ukwakheka kwamafilimu, ukumiswa, ukumiswa kwe-adsorption, ukugcinwa komhlaba, ukugcinwa komswakama nokuvikela i-colloid ne-colloid yomswakama kanye nokuvikela i-colloid. I-Hydroxypropyll methylcellulose ingasetshenziswa ekwakheni izinto zokwakha, imboni yezezimali, i-sonthetic resin, imboni ye-ceramic, umuthi, izindwangu, imboni yamakhemikhali yansuku zonke kanye nezinye izimboni.

Umsebenzi wokugcina amanzi kanye nesimiso: I-CelLheluse Ether HPMC ikakhulukazi idlala indima yokugcinwa kwamanzi futhi ikhule ku-slurry kasimende kanye ne-gypsum-based slurry, ekwazi ukuthuthukisa amandla ngempumelelo nokumelana nobuhlobo be-slurry. Izici ezinjengokushisa komoya, izinga lokushisa nejubane lokucindezela komoya lizothinta izinga lokuzithambisa kwamanzi emikhiqizweni yodaka kasimende nemikhiqizo esekwe e-gypsum. Ngakho-ke, ngezinkathi ezahlukahlukene zonyaka, kukhona umehluko othile ekutholeni indawo yokugcinwa kwamanzi ngenani elifanayo lemikhiqizo ye-HPMC. Ekwakhiweni okuthize, umphumela wokugcinwa kwamanzi we-slurry ungashintshwa ngokwanda noma ukwehlisa inani le-HPMC elingeziwe.

Ukugcinwa kwamanzi kwe-methyl cellulose ether ngaphansi kwezimo zokushisa okuphezulu kuyinkomba ebalulekile yokuhlukanisa ikhwalithi ye-methyl cellulose ether. Imikhiqizo emihle yochungechunge lwe-HPMC ingaxazulula inkinga yokugcinwa kwamanzi emazingeni okushisa aphezulu. Esikhathini sokushisa esiphakeme, ikakhulukazi ezindaweni ezishisayo nezomile kanye nokwakhiwa kwesendlalelo ohlangothini olunelanga, i-HPMC esezingeni eliphakeme iyadingeka ukuthuthukisa ukugcinwa kwamanzi kwe-slurry.

I-HPMC esezingeni eliphakeme inokufana okuhle kakhulu. Amaqembu ayo we-methoxy ne-hydroxypropopoxy asatshalaliswa ngokulinganayo kanye ne-cellulose molecular chain, engathuthukisa amandla ama-athomu omoya-mpilo kuma-hydroxyl kanye ne-ether izibopho zokuzihlanganisa namanzi ukuze ahlangane namanzi e-hydrogen. , Ukuze amanzi angenamanzi aboshwe amanzi, ngaleyo ndlela elawula ngempumelelo ukuhwamuka kwamanzi okubangelwa isimo sezulu esiphakeme sokushisa, nokuthola ukugcinwa kwamanzi okuphezulu.

I-Cellulose HPMC ephezulu ye-cellulose i-Cellulose i-Cellulose ingahlakazeka ngendlela efanayo futhi ngempumelelo ihlakazeke emikhiqizweni yodaka kasimende kanye nama-gypsum, bese igoqa zonke izinhlayiya eziqinile, bese yakha ungqimba lwefilimu eliqinile. Amanzi asesisekelweni kancane kancane adedelwa isikhathi eside. Into evunyelwe yenziwa nge-hydration, ukuze kuqinisekiswe amandla okubopha namandla acindezelayo wezinto ezibonakalayo. Ngakho-ke, ekwakhiweni kwamazinga okushisa aphezulu, ukuze kufinyelelwe umphumela wokugcinwa kwamanzi, imikhiqizo esezingeni eliphakeme ye-HPMC kumele ingezwe ngamanani anele ngokuya ngefomula, ngaphandle kwalokho, amandla anele, ukuqhekeka, okukhohlisayo kanye nokuwa nokuwa izokwenzeka ngenxa yokoma ngokweqile. Izinkinga, kepha futhi kwandisa ubunzima bezisebenzi zokwakha. Njengoba izinga lokushisa lincipha, inani le-HPMC elingeziwe lingancishiswa kancane kancane, futhi umphumela wokugcina amanzi afanayo angatholakala.

Ukugcinwa kwamanzi kwe-HPMC kuthintwa yilezi zinto ezilandelayo:
1. I-homogeneity of cellulose ether hpmc
E-HOMOGENEECEASHEESHEESHEESHEKILEDELY HPMC, amaqembu we-methoxy ne-hydroxypropopoxy asatshalaliswa ngokulinganayo, kanti izinga lokugcina lamanzi liphezulu.

2. I-Thermal gel lokushisa le-cellulose ether hpmc
Izinga lokushisa le-Thermal Gel liphezulu, izinga lokugcina amanzi liphezulu; Ngokuphambene nalokho, inani lokugcinwa kwamanzi liphansi.

3. Ukuvunywa kwe-cellulose ether hpmc
Lapho i-viscosity ye-HPMC inyuka, inani lokugcina amanzi liyanda; Lapho i-viscosity ifinyelela ezingeni elithile, ukwanda kwamazinga okugcina amanzi kuvame ukuba isicaba.

4. Ukungezwa kwe-cellulose ether hpmc
Lapho inani elikhulu kakhulu le-cellulose ether hpmc elingezwe, liphezulu inani lokugcina amanzi kanye ne-NEP ENDLELA YOKUQHAWULA KWAMANZI. Ngobubanzi bokungezelelwa kwe-0.25-0.6%, inani lokugcina amanzi likhuphuka ngokushesha ngokwanda kwenani lokungezwa; Lapho inani lokungeza liyanda, umkhuba owandayo wamanani okugcinwa kwamanzi wehlisa.