1. Iyini inhloso eyinhloko ye-HPMC?
Lo mkhiqizo usetshenziswa njengesithambisi, isisabalalisi, isihlanganisi, isithambisi, isimbozo esingamelani namafutha, isigcwalisi, i-emulsifier kanye nesiqinisi embonini yezindwangu. Uphinde usetshenziswe kabanzi embonini yezindwangu ye-resin yokwenziwa, i-petrochemical, i-ceramic, iphepha, isikhumba, imithi, ukudla kanye nezimboni zezimonyo.
2. Iyini indima yeI-HPMCku-powder ye-putty yangaphakathi odongeni?
I-HPMC inemisebenzi emithathu: i-putty powder yodonga lwangaphakathi, ukuqina, ukukhiya amanzi kanye nokwakhiwa. Ukuhlushwa: I-Methyl cellulose ingagxiliswa ngesisombululo esintantayo noma samanzi ukuze kugcinwe imisebenzi efanayo nehambisanayo futhi kuvinjelwe ukugeleza nokulenga. Amanzi okukhiya: I-powder yodonga lwangaphakathi yoma kancane, futhi i-calcium yelime eyengeziwe ibonakala ekusetshenzisweni kwamanzi. Ukwakhiwa kobunjiniyela: I-Methyl cellulose inomsebenzi wokumanzisa, ongenza i-powder ye-putty yodonga lwangaphakathi ibe nesakhiwo esihle sobunjiniyela. I-HPMC ayihlanganyeli ekushintsheni kwawo wonke amakhemikhali, kodwa ihlanganyela kuphela ekugcwaliseni kabusha. I-powder ye-putty yodonga lwangaphakathi, odongeni, iwushintsho lwamakhemikhali, ngoba kukhona ukuguqulwa kwamakhemikhali amasha, i-powder ye-putty yodonga lwangaphakathi isuswa odongeni, igaywe, futhi isetshenziswe kabusha, Ngoba kukhiqizwe into entsha yamakhemikhali (i-calcium bicarbonate). Izakhi eziyinhloko zempuphu 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, kwakheka i-calcium carbonate, kuyilapho i-HPMC igcina amanzi kuphela futhi isiza ukusabela okungcono kwe-calcium empunga, futhi ayihlanganyeli kunoma yikuphi ukusabela ngokwayo.
3. Indlela yokwahlulela ikhwalithi yeI-HPMCkalula nangokuqonda?
(1) Ubumhlophe: Nakuba ubumhlophe bungenakunquma ukuthi i-HPMC kulula ukuyisebenzisa, futhi uma kufakwa i-brightener enqubweni yokukhiqiza, kuzothinta ikhwalithi yayo. Kodwa-ke, imikhiqizo emihle inobumhlophe obuhle. (2) Ubumhlophe: Ubumhlophe be-HPMC ngokuvamile bungama-mesh angu-80 kanye nama-mesh angu-100, ama-mesh angu-120 angaphansi, kanti iningi le-HPMC elikhiqizwa e-Hebei lingama-mesh angu-80. Uma ubumhlophe buncane, kuba ngcono kakhulu. (3) Ukudluliselwa: Faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wakhe i-colloid esobala, bese ubheka ukudluliselwa kwayo. Uma ukudluliselwa kukhulu, kungcono, okubonisa ukuthi kukhona okungancibiliki ngaphakathi. . Ukuvuleka kwe-reactor eqondile ngokuvamile kuhle, kanti i-reactor evundlile imbi kakhulu, kodwa akusho ukuthi ikhwalithi ye-reactor eqondile ingcono kuneye-reactor evundlile. Ikhwalithi yomkhiqizo isanqunywa yizici eziningi. (4) Isilinganiso: Uma isilinganiso sikhulu, isisindo singcono. Ukucaciswa okuphezulu ngokuvamile kubangelwa okuqukethwe okuphezulu kwe-hydroxypropyl kuyo, futhi uma okuqukethwe kwe-hydroxypropyl kuphakeme, kulapho ukugcinwa kwamanzi kuba ngcono khona.
4. Yini okufanele inakwe lapho kusetshenziswa i-viscosity kanye nokushisa kwe-HPMC?
I-viscosity ye-HPMC ilingana ngokungalingani nezinga lokushisa, okungukuthi, i-viscosity iyanda njengoba izinga lokushisa lehla. Ngokuvamile sithi i-viscosity yomkhiqizo ibhekisela emphumeleni wokuhlola isixazululo sayo samanzi esingu-2% ekushiseni okungu-20 degrees Celsius. Ezisetshenzisweni ezisebenzayo, ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, kufanele kuqashelwe ukuthi kunconywa ukusebenzisa i-viscosity ephansi ebusika, okuyinto evumelana kakhulu nokwakhiwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, i-viscosity ye-cellulose izokwanda, futhi isandla sizozizwa sisinda lapho siklwejwa.
5. Yiziphi izindlela zokuncibilikisa ze-HPMC?
Indlela yokuncibilikisa amanzi ashisayo: Njengoba i-HPMC ingancibilikiswa emanzini ashisayo, i-HPMC ingahlakazwa ngokulinganayo emanzini ashisayo esigabeni sokuqala, bese incibilika ngokushesha uma ipholile. Izindlela ezimbili ezijwayelekile zichazwa kanje: 1). Inani lamanzi ashisayo bese lishiswa cishe ku-70°C. Faka kancane kancane i-hydroxypropyl methylcellulose ngokuxubha kancane, qala i-HPMC intante phezu kwamanzi, bese kancane kancane yakha i-slurry, bese upholisa i-slurry ngokuxubha. 2). Engeza i-1/3 noma i-2/3 yenani lamanzi elidingekayo esitsheni bese uyifudumeza ku-70°C. Ngokwendlela yoku-1), hlakaza i-HPMC ukuze ulungiselele i-slurry yamanzi ashisayo; bese ufaka inani elisele lamanzi abandayo emanzini ashisayo. Ku-slurry, pholisa ingxube ngemva kokuxubha. Indlela yokuxuba i-powder: hlanganisa i-HPMC powder nenani elikhulu lezinye izinto eziwumpuphu, hlanganisa kahle nge-blender, bese ufaka amanzi ukuze ancibilike, bese i-HPMC ingancibilika ngalesi sikhathi ngaphandle kokuhlangana nokuhlangana, ngoba ikhona ngalinye elincane, kukhona ingxenye encane ye-HPMC. I-powder izoncibilika ngokushesha lapho ihlangana namanzi. -Abakhiqizi be-Putty powder kanye ne-mortar basebenzisa le ndlela. [I-Hydroxypropyl methyl cellulose (HPMC) isetshenziswa njenge-thickener kanye ne-ejenti yokugcina amanzi ku-putty powder mortar.]
6. Ungakanani umthamo we-HPMC ongeziwe ku-putty powder?
Inani leI-HPMCIsetshenziswa ezisetshenziswa zangempela iyahlukahluka kuye ngesimo sezulu, izinga lokushisa, ikhwalithi ye-calcium yomlotha wendawo, ifomula yempuphu ye-putty, kanye "nekhwalithi edingekayo ngamakhasimende". Ngokuvamile, iphakathi kuka-4 kg no-5 kg. Isibonelo, impuphu ye-putty ekuhlobiseni'>Beijing iningi layo lingu-5 kg; impuphu ye-putty eGuizhou iningi layo lingu-5 kg ehlobo kanye no-4.5 kg ebusika; inani le-Yunnan elingeziwe lincane, ngokuvamile liyi-3 kg-4 kg njalo njalo.
Isikhathi sokuthunyelwe: Ephreli-26-2024