I-Hydroxypropyl Methylcellulose, okukhulunywa ngayo: HPMC noma i-MHPC. Ukubukeka kungumpuphu omhlophe noma we-off-white; Ukusetshenziswa okuyinhloko kunjenge-distrinsant ekukhiqizeni i-polyvinyl chloride, futhi i-ejenti eyinhloko yokulungiselela i-PVC ngokumiswa kwe-PVC ngokumiswa kwe-polymerization. Enqubweni yokwakha imboni yezokwakha, isetshenziswa ikakhulukazi ekwakheni okwenziwe ngomshini njengokwakhiwa kodonga, ukufakwa kwamakhekhe, njll. Ikakhulu ekuhlolweni kokuhlobisa, isetshenziselwa ukunamathisela amathayili e-ceramic, imabula, nemihlobiso yepulasitiki. Inamandla amakhulu ahlanganisa futhi inganciphisa inani likasimende. . Isetshenziswa njengesikhulu embonini yokupenda, engenza ungqimba aqhakaze futhi abukeke, avimbele ukususwa kwe-powder, athuthukise ukusebenza kwezinga, njll.
Ku-slurry kasimende no-gypsum esekwe ku-gerdSum, i-hydroxypropylm methylcellulose ikakhulukazi idlala indima yokugcinwa kwamanzi nokuqina, okungathuthukisa ngempumelelo amandla okubumbana kanye nokumelana kwe-slurry.
Izici ezinjengokushisa komoya, izinga lokushisa nejubane lokucindezela komoya lizothinta izinga lokuzithambisa kwamanzi emikhiqizweni yodaka kasimende nemikhiqizo esekwe e-gypsum. Ngakho-ke, ngezinkathi ezihlukene, kukhona umehluko othile emphumeleleni wokugcina amanzi wemikhiqizo ngenani elifanayo le-hydroxypropylylylylylylyllose angeziwe.
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 yochungechunge lwe-hydylcelprose methylcellose methylcellose ingaxazulula inkinga yokugcinwa kwamanzi ngaphansi kokushisa okuphezulu. 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, ukuze alawule ngempumelelo ukuhwamuka kwamanzi okubangelwa isimo sezulu esiphakeme kakhulu sezulu, futhi kufinyelelwe ukugcinwa kwamanzi okuphezulu.
Amanzi ayadingeka kuma-hydration ukuze asethe izinto zokwenza kahle ezifana nesimende ne-gypsum. Inani elifanele le-HPMC lingagcina umswakama osesibulaweni isikhathi eside se-seanele ukuze inqubo nenqubo yokuqina kungaqhubeka.
Inani le-HPMC elidingekayo ukuthola ukugcinwa kwamanzi anele kuncike ku:
1. Ukutholwa kwesendlalelo sesisekelo
2. Ukwakheka kodaka
3.
4. Isidingo samanzi sodaka
I-5. Isikhathi sokubeka izinto ezibonakalayo
I-Hydroxyproppropyll esezingeni eliphakeme ingasatshalaliswa ngokufana nangokufanelekile emikhiqizweni yodaka kasimende kanye nemikhiqizo esekwe e-gypsum, futhi ihlanganise zonke izinhlayiya eziqinile, futhi yakha ifilimu eliqinile, futhi umswakama osesisekelweni udedelwa kancane kancane isikhathi eside, futhi Ukusabela kweHydration ngezinto zokugibela ama-Inorganic ukuqinisekisa amandla abugqilayo namandla acindezelayo wezinto ezibonakalayo.
Ngakho-ke, ekwakhiweni kwamazinga okushisa aphezulu, ukuze kufinyelelwe umphumela wokugcinwa kwamanzi, kuyadingeka ukufaka imikhiqizo esezingeni eliphakeme ye-HPMC ngamanani anele ngokuya ngefomula, ngenye indlela, kuzoba ne-hollower nokuchitheka okubangelwa ukoma ngokweqile. Izinkinga, kepha futhi zandisa ubunzima bezisebenzi. Njengoba amazinga okushisa ehla, inani lamanzi we-HPMC angeziwe angancishiswa kancane kancane, futhi umphumela wokugcina amanzi afanayo angatholakala.
Isikhathi Sokuposa: Jan-16-2023