I-Hydroxypropyl methylcellulose iyi-non-ionic cellulose ether ecutshungulwa kusuka kukotini ocolisisiwe ngokusebenzisa uchungechunge lwezimpendulo zamakhemikhali. Iyinto emhlophe engenaphunga, engenabuthi efana nempuphu encibilika emanzini futhi iveze isixazululo se-colloidal esicacile noma esinamafu kancane. Inezici zokuqina, ukugcinwa kwamanzi kanye nokwakhiwa okulula. Isixazululo samanzi se-hydroxypropyl methylcellulose HPMC sizinzile kakhulu ebangeni le-HP3.0-10.0, futhi uma singaphansi kuka-3 noma ngaphezulu kuka-10, i-viscosity izoncipha kakhulu.
Umsebenzi oyinhloko we-hydroxypropyl methylcellulose ku-cement mortar kanye ne-putty powder ukugcinwa kwamanzi kanye nokuqina, okungathuthukisa ngempumelelo ukuhlangana kanye nokumelana nokuwa kwezinto.
Izinto ezifana nokushisa kanye nesivinini somoya zizothinta izinga lokuguquguquka komswakama ku-mortar, i-putty kanye neminye imikhiqizo, ngakho-ke ezinkathini ezahlukene, umphumela wokugcina amanzi wemikhiqizo enenani elifanayo le-cellulose elingeziwe uzoba nomehluko othile. Ekwakhekeni okuthile, umphumela wokugcina amanzi we-slurry ungalungiswa ngokwandisa noma ukunciphisa inani le-HPMC elingeziwe. Ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose HPMC ekushiseni okuphezulu kuyinkomba ebalulekile yokuhlukanisa ikhwalithi ye-HPMC. I-HPMC enhle kakhulu ingaxazulula ngempumelelo inkinga yokugcina amanzi ngaphansi kwezimo zokushisa okuphezulu. Ezinkathini ezomile nasezindaweni ezinokushisa okuphezulu kanye nesivinini somoya ophezulu, kuyadingeka ukusebenzisa i-HPMC esezingeni eliphezulu ukuthuthukisa ukusebenza kokugcinwa kwamanzi kwe-slurry.
Ngakho-ke, ekwakheni izinga lokushisa eliphezulu ehlobo, ukuze kufezwe umphumela wokugcina amanzi, kuyadingeka ukwengeza inani elanele le-HPMC esezingeni eliphezulu ngokwefomula, ngaphandle kwalokho kuzoba nezinkinga zekhwalithi ezifana nokunganeli kwamanzi, amandla anciphile, ukuqhekeka, ukugoba kanye nokuchitheka okubangelwa ukoma okusheshayo kakhulu, futhi ngesikhathi esifanayo kwandisa nobunzima bokwakhiwa kwabasebenzi. Njengoba izinga lokushisa lehla, inani le-HPMC elingeziwe lingancishiswa kancane kancane, futhi umphumela ofanayo wokugcina amanzi ungafinyelelwa.
Ekukhiqizweni kwezinto zokwakha, i-hydroxypropyl methylcellulose iyisengezo esibalulekile. Ngemva kokwengeza i-HPMC, lezi zakhiwo ezilandelayo zingathuthukiswa:
1. Ukugcinwa kwamanzi: Thuthukisa ukugcinwa kwamanzi, thuthukisa udoti wesamente, i-putty yempuphu eyomile yoma ngokushesha kakhulu kanye nokungamanzi ngokwanele okubangele ukuqina okubi, ukuqhekeka nezinye izimo.
2. Ukunamathela: Ngenxa yokwakheka kwe-plasticity okuthuthukisiwe kwe-mortar, ingahlanganisa kangcono i-substrate kanye ne-adhesive.
3. Ukungagugi: Ngenxa yomphumela wayo wokujiya, ingavimbela ukushelela kwe-mortar nezinto ezinamathele ngesikhathi sokwakha.
4. Ukusebenza Kahle: Khulisa ukuqina kodaka, uthuthukise imboni yokwakha futhi uthuthukise ukusebenza kahle komsebenzi.
Isikhathi sokuthunyelwe: Ephreli-12-2023