1. Iyini inhloso enkulu ye-HPMC?
Lo mkhiqizo usetshenziswa njenge-thickener, dispersant, binder, excipient, i-coating engazweli uwoyela, i-filler, i-emulsifier kanye ne-stabilizer embonini yendwangu. Ibuye isetshenziswe kabanzi embonini ye-synthetic resin, petrochemical, ceramic, paper, lesikhumba, imithi, ukudla nezimonyo.
2. Iyini indimaI-HPMCku-interior wall putty powder?
I-HPMC inemisebenzi emithathu: i-putty powder yodonga lwangaphakathi, ukuqina, ukuvala amanzi kanye nokwakha. Ukugxila: I-Methyl cellulose ingagxilwa ngesisombululo esintantayo noma esinamanzi ukuze kugcinwe imisebenzi efanayo futhi engaguquki futhi kuvimbele ukugeleza nokulenga. Amanzi okukhiya: Impushana yodonga lwangaphakathi yoma kancane, futhi i-lime calcium eyengeziwe ibonakala ekusetshenzisweni kwamanzi. Ukwakhiwa kobunjiniyela: I-Methyl cellulose inomsebenzi wokumanzisa, ongenza i-putty powder yangaphakathi ibe nesakhiwo esihle sobunjiniyela. I-HPMC ayibambi iqhaza ekuguqulweni kwawo wonke amakhemikhali, kodwa ibamba iqhaza kuphela ekugcwaliseni kabusha. I-wall putty powder yangaphakathi, odongeni, inguquko yamakhemikhali, ngoba kukhona ukuguqulwa kwamakhemikhali amasha, i-putty powder yangaphakathi yodonga ikhishwa odongeni, igaywe, futhi isetshenziswe kabusha , Ngoba ikhemikhali entsha (i-calcium bicarbonate) yenziwe. Izingxenye eziyinhloko zempushana ye-calcium empunga yilezi: ingxube ye-Ca(OH)2, i-CaO kanye nenani elincane le-CaCO3, i-CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O i-calcium empunga emanzini nasemoyeni Ngaphansi kwesenzo se-CO2, i-calcium carbonate iyakhiwa, kuyilapho i-HPMC igcina noma iyiphi i-calcium ekuphenduleni kwayo futhi ayibambi iqhaza kuphela ekuphenduleni kwe-gray ngokwayo.
3. Indlela yokwahlulela ikhwalithi yeI-HPMCkalula futhi intuitively?
(1) Ubumhlophe: Nakuba ubumhlophe bungakwazi ukunquma ukuthi i-HPMC kulula yini ukuyisebenzisa, futhi uma isicwebezeli sengezwa kunqubo yokukhiqiza, sizothinta ikhwalithi yayo. Nokho, imikhiqizo emihle inobumhlophe obuhle. (2) Ukulunga: Ubucwebe be-HPMC ngokuvamile buwu-80 mesh kanye ne-100 mesh, 120 mesh mincane, futhi iningi le-HPMC elikhiqizwa e-Hebei lingama-80 mesh. Ubuhle obuhle, bungcono ngokujwayelekile. (3) Ukudluliselwa: Faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wenze i-colloid esobala, bese ubheka ukudluliselwa kwayo. Ukudlulisa okukhulu, kuba ngcono, okubonisa ukuthi kukhona okuncane okungancibiliki ngaphakathi. . Ukungena kwe-reactor eqondile ngokuvamile kuhle, futhi i-reactor evundlile yimbi kakhulu, kodwa akusho ukuthi ikhwalithi ye-reactor eqondile ingcono kunaleyo ye-reactor evundlile. Izinga lomkhiqizo lisanqunywa izici eziningi. (4) Isilinganiso: Uma sikhulu isilinganiso, esindayo siba ngcono. Ukucaciswa okuphezulu ngokuvamile kungenxa yokuqukethwe okuphezulu kwe-hydroxypropyl kuyo, futhi ukuphakama kokuqukethwe kwe-hydroxypropyl, ukugcinwa kwamanzi kungcono.
4. Yini okufanele inakwe lapho usebenzisa i-viscosity nezinga lokushisa le-HPMC?
I-viscosity ye-HPMC ihambisana ngokuphambene nezinga lokushisa, okungukuthi, i-viscosity iyanda njengoba izinga lokushisa liyancipha. Ngokuvamile sithi i-viscosity yomkhiqizo ibhekisela kumphumela wokuhlola isisombululo sawo samanzi esingu-2% ekushiseni okungama-degrees Celsius angu-20. Ekusetshenzisweni okusebenzayo, ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, kufanele kuqashelwe ukuthi kunconywa ukusebenzisa i-viscosity ephansi kakhulu ebusika, evumelana kakhulu nokwakhiwa. Uma kungenjalo, lapho izinga lokushisa liphansi, i-viscosity ye-cellulose izokhula, futhi isandla sizozizwa sisindayo lapho sikhishwa.
5. Yiziphi izindlela zokuchithwa kwe-HPMC?
Indlela yokuchithwa kwamanzi ashisayo: Njengoba i-HPMC ingancibilikisiwe emanzini ashisayo, i-HPMC ingahlakazwa ngokufanayo emanzini ashisayo esigabeni sokuqala, bese incibilika ngokushesha lapho isipholile. Izindlela ezimbili ezijwayelekile zichazwe kanje: 1). Inani lamanzi ashisayo futhi ashiselwe cishe ku-70°C. Kancane kancane engeza i-hydroxypropyl methylcellulose ngokunyakazisa kancane, qala i-HPMC intante phezu kwamanzi, bese kancane kancane wenze udaka, bese upholisa udaka ngokunyakazisa. 2). Faka i-1/3 noma 2/3 yenani elidingekayo lamanzi esitsheni bese usishisa ku-70°C. Ngokwendlela ye-1), hlakaza i-HPMC ukuze ulungiselele udaka lwamanzi ashisayo; bese ufaka inani elisele lamanzi abandayo emanzini ashisayo Ku-slurry, pholisa ingxube ngemva kokugqugquzela. Indlela yokuxuba ufulawa: hlanganisa i-HPMC powder nenani elikhulu lezinye izinto eziyimpuphu, xuba kahle ne-blender, bese ufaka amanzi ukuze uncibilike, bese i-HPMC ingancibilika ngalesi sikhathi ngaphandle kokuhlanganisa nokuhlanganisa, ngoba ikhona ngalinye elincane, kukhona ingcosana ye-HPMC Impushana izoncibilika ngokushesha lapho ihlangana namanzi. -Abakhiqizi be-putty powder kanye nodaka basebenzisa le ndlela. [I-Hydroxypropyl methyl cellulose (HPMC) isetshenziswa njenge-ejenti ejiya futhi egcina amanzi kudaka oluyimpuphu. ]
6. Uyini umthamo we-HPMC owengezwe ku-putty powder?
Inani leI-HPMCesetshenziswa ekusetshenzisweni kwangempela kuyahlukahluka kuye ngokuthi isimo sezulu, izinga lokushisa, izinga le-calcium yomlotha wendawo, ifomula ye-putty powder, kanye "nekhwalithi edingekayo ngamakhasimende". Ngokuvamile, iphakathi kuka-4 kg no-5 kg. Isibonelo, i-putty powder emhlobiso'>I-Beijing iningi lama-5 kg; i-putty powder e-Guizhou ngokuvamile i-5 kg ehlobo kanye ne-4.5 kg ebusika; Isamba sesengezo sika-Yunnan sincane uma kuqhathaniswa, ngokuvamile si-3 kg-4 kg nokunye.
Isikhathi sokuthumela: Apr-26-2024