IHydroxypropyl methylcellulose iyi-ether engeyona ionic cellulose ecutshungulwa kusuka kukotini ocolisisiwe ngochungechunge lokusabela kwamakhemikhali.Iwuketshezi olumhlophe olungenaphunga, olungenabuthi oluncibilika emanzini futhi luletha isixazululo se-colloidal esicacile noma esinamafu kancane.Inezici zokuqina, ukugcinwa kwamanzi nokwakhiwa okulula.Isixazululo esinamanzi se-hydroxypropyl methylcellulose HPMC sizinzile kububanzi be-HP3.0-10.0, futhi uma singaphansi kuka-3 noma sikhulu kune-10, i-viscosity izoncipha kakhulu.
Umsebenzi oyinhloko we-hydroxypropyl methylcellulose odakeni lukasimende kanye ne-putty powder ukugcinwa kwamanzi nokuqina, okungathuthukisa ngokuphumelelayo ukubumbana nokumelana ne-sag yezinto.
Izinto ezifana nezinga lokushisa nesivinini somoya zizothinta izinga lokushintshashintsha komswakama odakeni, i-putty neminye imikhiqizo, ngakho-ke ezinkathini ezihlukene zonyaka, umphumela wokugcina amanzi wemikhiqizo enenani elifanayo le-cellulose engeziwe uyophinde ube nomehluko othile.Ekwakhiweni okukhethekile, umphumela wokugcina amanzi we-slurry ungalungiswa ngokwandisa noma ukwehlisa inani le-HPMC elingeziwe.Ukugcinwa kwamanzi kwe-hydroxypropyl methylcellulose HPMC ezingeni lokushisa eliphezulu kuyinkomba ebalulekile yokuhlukanisa ikhwalithi ye-HPMC.I-HPMC enhle kakhulu ingaxazulula ngokuphumelelayo inkinga yokugcinwa kwamanzi ngaphansi kwezimo zokushisa eziphezulu.Ezikhathini ezomile nezindawo ezinokushisa okuphezulu kanye nesivinini somoya, kuyadingeka ukusebenzisa i-HPMC yekhwalithi ephezulu ukuthuthukisa ukusebenza kokugcinwa kwamanzi kwe-slurry.
Ngakho-ke, ekwakhiweni kwehlobo lokushisa eliphezulu, ukuze kuzuzwe umphumela wokugcina amanzi, kuyadingeka ukwengeza inani elanele lekhwalithi ephezulu ye-HPMC ngokusho kwefomula, ngaphandle kwalokho kuzoba nezinkinga zekhwalithi njengokunganele kwe-hydration, amandla ancishisiwe, ukuqhekeka. , umgodi nokuchithwa okubangelwa ukomisa okusheshayo, futhi ngesikhathi esifanayo Futhi kwandise ubunzima bokwakhiwa kwabasebenzi.Njengoba izinga lokushisa lehla, inani le-HPMC elingeziwe lingancishiswa kancane kancane, futhi umphumela ofanayo wokugcina amanzi ungafinyelelwa.
Ekukhiqizeni izinto zokwakha, i-hydroxypropyl methylcellulose iyisengezo esibalulekile.Ngemva kokungeza i-HPMC, izici ezilandelayo zingathuthukiswa:
1. Ukugcinwa kwamanzi: Thuthukisa ukugcinwa kwamanzi, thuthukisa udaka lukasimende, i-powder putty eyomile ngokushesha kakhulu kanye nokuntuleka kwe-hydration okwanele kubangele ukuqina okubi, ukuqhekeka nezinye izenzakalo.
2. Ukunamathela: Ngenxa yepulasitiki ethuthukisiwe yodaka, ingabopha kangcono i-substrate kanye nokunamathela.
3. I-Anti-sagging: Ngenxa yomphumela wayo wokujiya, ingavimbela ukushelela kodaka nezinto ezinamathelayo ngesikhathi sokwakha.
4. Ukusebenza: Khulisa ipulasitiki yodaka, uthuthukise izimboni zokwakha futhi uthuthukise ukusebenza kahle komsebenzi.
Isikhathi sokuthumela: Apr-12-2023