I-Hydroxypropyl methyl cellulose ihlukaniswe ngezinhlobo eziningana, futhi uyini umehluko ekusetshenzisweni kwayo?
I-HPMC ingahlukaniswa ngezinhlobo ezisheshayo nezishisayo. Imikhiqizo esheshayo isakazeka ngokushesha emanzini abandayo bese inyamalala emanzini. Ngalesi sikhathi, uketshezi alunawo umswakama, ngoba i-HPMC isakazeka kuphela emanzini futhi ayincibiliki ngempela. Ngemva kwemizuzu engaba ngu-2 (ivuselela), umswakama woketshezi uyanda kancane kancane, kwakha i-colloid emhlophe ecacile nethambile. Imikhiqizo encibilikayo eshisayo ingasakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo uma ihlanganiswe emanzini abandayo. Lapho izinga lokushisa lehla liye ezingeni lokushisa elithile (ngokusho kokushisa kwejeli lomkhiqizo), umswakama uvela kancane kancane kuze kube yilapho kwakheka i-colloid ecacile nethambile.
Ungahlulela kanjani ikhwalithi ye-hydroxypropyl methyl cellulose kalula nangendlela enembile?
Ubumhlophe. Nakuba ubumhlophe bungenakunquma ukuthi i-HPMC kulula ukuyisebenzisa, futhi uma kufakwa izinto zokwenza mhlophe enqubweni yokukhiqiza, kuzothinta ikhwalithi yayo, imikhiqizo eminingi emihle inobumhlophe obuhle.
Ubuncane: ubuncane be-HPMC ngokuvamile bungama-mesh angu-80 kanye nama-mesh angu-100, kanti ama-mesh angu-120 angaphansi. Uma ubuncane buncane, kuba ngcono.
Ukudluliselwa kokukhanya: ngemva kokuba i-HPMC ifakwe emanzini ukuze yakhe i-colloid esobala, bheka ukudluliselwa kwayo kokukhanya. Uma ukudluliselwa kokukhanya kukhulu, kuba ngcono. Kusho ukuthi kunezinto ezingancibiliki kakhulu kuyo. Ukudluliselwa kwe-reactor eqondile ngokuvamile kuhle, kanti okwe-reactor evundlile kubi kakhulu. Kodwa-ke, akusho ukuthi ikhwalithi ye-reactor eqondile ingcono kuneye-reactor evundlile. Kunezici eziningi ezinquma ikhwalithi yomkhiqizo.
Amandla adonsela phansi athile: uma amandla adonsela phansi athile emakhulu, uma esinda kakhulu, kuba ngcono. Ngokuvamile, kungenxa yokuthi okuqukethwe yi-hydroxypropyl kuyo kuphakeme. Uma okuqukethwe yi-hydroxypropyl kuphezulu, ukugcinwa kwamanzi kungcono.
Amandla adonsela phansi athile: uma amandla adonsela phansi athile emakhulu, uma esinda kakhulu, kuba ngcono. Ngokuvamile, kungenxa yokuthi okuqukethwe yi-hydroxypropyl kuyo kuphakeme. Uma okuqukethwe yi-hydroxypropyl kuphezulu, ukugcinwa kwamanzi kungcono.
Yiziphi izindlela zokuncibilikisa i-hydroxypropyl methyl cellulose?
Zonke izinhlobo zingangezwa ezintweni ngendlela yokuxuba eyomile;
Uma kudingeka ifakwe ngqo esixazululweni samanzi endaweni yokushisa kwegumbi, kungcono ukusebenzisa uhlobo lokusabalala kwamanzi abandayo. Ngokuvamile, ingaqina zingakapheli imizuzu eyi-10-90 ngemva kokuyifaka (ukuxuba)
Amamodeli ajwayelekile angancibilikiswa ngemva kokuxuba nokuhlakaza ngamanzi ashisayo, engeza amanzi abandayo, evuselela futhi epholisa;
Uma kwenzeka ukubhakwa nokugoqwa ngesikhathi sokuncibilika, kungenxa yokungalingani kokuxuba noma amamodeli avamile afakwa ngqo emanzini abandayo. Ngalesi sikhathi, kufanele avuselelwe ngokushesha.
Uma amabhamuza ekhiqizwa ngesikhathi sokuncibilika, angasuswa ngokuma amahora angu-2-12 (isikhathi esithile sincike ekuqineni kwesisombululo), ukuhlanza nge-vacuum, ukucindezela kanye nezinye izindlela, noma ukwengeza inani elifanele le-defoamer.
Iyiphi indima edlalwa yi-hydroxypropyl methyl cellulose ekusetshenzisweni kwe-putty powder, nokuthi ngabe ikhona yini i-chemistry?
Ku-putty powder, idlala izindima ezintathu: ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa. Ukuqina, i-cellulose ingaqina, idlale indima yokumiswa, igcine isixazululo silingana phezulu naphansi, futhi imelane nokuwa. Ukugcinwa kwamanzi: yenza i-putty powder yome kancane, futhi isize i-lime calcium ukuthi isabele ngaphansi kwesenzo samanzi. Ukwakhiwa: i-cellulose inomphumela wokugcoba, ongenza i-putty powder isebenze kahle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kodwa idlala indima yokusiza kuphela.
Lihlobene kanjani izinga lokushisa lejeli le-hydroxypropyl methyl cellulose?
Izinga lokushisa lejeli le-HPMC lihlobene nokuqukethwe kwayo kwe-methoxyl. Uma okuqukethwe kwe-methoxyl kuphansi, kulapho izinga lokushisa lejeli liphezulu khona.
Ingabe kukhona ubudlelwano phakathi kokuwa kwe-putty powder kanye ne-hydroxypropyl methyl cellulose?
Kubalulekile!!! I-HPMC ayinawo amanzi amaningi, okuzobangela ukulahleka kwempuphu.
Ukusetshenziswa kwe-hydroxypropyl methyl cellulose ku-putty powder, siyini isizathu samabhamuza ku-putty powder?
I-HPMC idlala indima ezintathu ku-putty powder: ukuqina, ukugcinwa kwamanzi kanye nokwakhiwa. Izizathu zamabhamuza yilezi ezilandelayo:
Kufakwa amanzi amaningi kakhulu.
Uma ukhuhla olunye ungqimba ongqimbeni olungezansi ngaphambi kokuba lome, kulula futhi ukulikhipha amabala.
Isikhathi sokuthunyelwe: Septhemba-27-2022