1. Yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methyl cellulose (HPMC)?
Okuqukethwe kwe-HPMC Hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili.Ukugcinwa kwamanzi ngokuvamile kungcono kulabo abanokuqukethwe okuphezulu kwe-hydroxypropyl.I-viscosity ephezulu, ukugcinwa kwamanzi, ngokuqhathaniswa (kunokuba aphelele) kangcono, kanye ne-viscosity ephezulu, esetshenziswa kangcono odakeni lukasimende.
2. Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-wall putty?
Ku-wall putty, i-HPMC inemisebenzi emithathu: ukuqina, ukugcinwa kwamanzi nokwakha.
Ukuqina: I-Cellulose ingajiywa ukuze imise futhi igcine umfaniswano wesixazululo, futhi imelane nokuwohloka.Ukugcinwa kwamanzi: yenza i-putty yodonga yome kancane, futhi usize i-calcium empunga ukuba isabele ngaphansi kwesenzo samanzi.Ukwakhiwa: I-Cellulose inomphumela wokugcoba, ongenza i-wall putty ibe nokusebenza okuhle.
3. Ingabe ukwehla kwe-putty odongeni kuhlobene ne-HPMC?
Ukwehla kwe-wall putty kuhlobene kakhulu nekhwalithi ye-ash calcium, kodwa hhayi ku-HPMC.Uma okuqukethwe kwe-calcium ku-ash calcium kanye nesilinganiso se-CaO ne-Ca(OH)2 ku-ash calcium kungafaneleki, kuzodala ukulahleka kwempuphu.Uma kunento yokwenza ne-HPMC, khona-ke ukugcinwa kwamanzi okungekuhle kwe-HPMC nakho kuzodala ukwehla kwempushana.
4. Ingakanani i-hydroxypropyl methyl cellulose (HPMC) ku-wall putty?
Inani le-HPMC elisetshenziswa ezinhlelweni zangempela liyahlukahluka kuye ngesimo sezulu, izinga lokushisa, izinga le-calcium yomlotha wendawo, ifomula ye-wall putty , kanye “nekhwalithi edingwa amakhasimende”.Ngokuvamile, phakathi kuka-4 kg no-5 kg.Isibonelo: I-Beijing wall putty iningi lama-5 kg;I-Guizhou ivame ukuba ngu-5 kg ehlobo kanye no-4.5 kg ebusika;I-Yunnan incane kakhulu, imvamisa i-3 kg kuya ku-4 kg nokunye.
5. Iyiphi i-viscosity efanele ye-hydroxypropyl methyl cellulose (HPMC)?
i-wall putty ngokuvamile iyi-100,000, kodwa udaka ludinga kakhulu, futhi kuthatha i-150,000 ukusebenza.Ngaphezu kwalokho, indima ebaluleke kakhulu ye-HPMC ukugcinwa kwamanzi, okulandelwa ukuqina.Ku-wall putty , inqobo nje uma ukugcinwa kwamanzi kuhle, i-viscosity iphansi (70-80,000), kungenzeka futhi, yebo, i-viscosity iphakeme, futhi ukugcinwa kwamanzi okuhlobene kungcono.Lapho i-viscosity idlula i-100,000, i-viscosity ayinawo umthelela ekugcinweni kwamanzi.
6. Ungakhetha kanjani i-hydroxypropyl methylcellulose (HPMC) efanele ngezinhloso ezahlukene?
Ukusetshenziswa kwe-wall putty : imfuneko iphansi, i-viscosity yi-100,000, yanele, into ebalulekile ukugcina amanzi angcono.Ukusetshenziswa kodaka: izidingo eziphakeme, i-viscosity ephezulu, engcono kune-150,000, ukusetshenziswa kweglue: imikhiqizo ehlakazeka ngokushesha, i-viscosity ephezulu.
7. Ukusetshenziswa kwe-HPMC ku-wall putty, yini ebangela ukuthi i-wall putty ikhiqize amabhamuza?
I-HPMC idlala izindima ezintathu ku-wall putty: ukuqina, ukugcinwa kwamanzi kanye nokwakha.Ungabambi iqhaza kunoma yikuphi ukusabela.Izizathu zamabhamuza:
(1) Kufakwa amanzi amaningi kakhulu.
(2) Ungqimba olungezansi alomile, futhi olunye ungqimba luyakwenwa kulo, okubuye kube lula ukukhihliza amagwebu.
Isikhathi sokuthumela: Jan-07-2022