1. Yiziphi izindlela zokuncibilikisa ze-hydroxypropyl methylcellulose HPMC?
Impendulo: Indlela yokuncibilikisa amanzi ashisayo: Njengoba i-HPMC ingancibilikisi emanzini ashisayo, i-HPMC ingahlakazeka ngokulinganayo emanzini ashisayo esigabeni sokuqala, bese incibilika ngokushesha uma ipholile. Izindlela ezimbili ezijwayelekile zichazwa kanje:
1), engeza i-1/3 noma i-2/3 yenani lamanzi elidingekayo esitsheni, bese ulishisa ku-70°C, usakaze i-HPMC ngokwendlela yoku-1), bese ulungisa i-slurry yamanzi ashisayo; bese ufaka inani elisele lamanzi abandayo ku-slurry yamanzi ashisayo, ingxube ipholiswe ngemva kokuyixuba.
Indlela yokuxuba i-powder: hlanganisa i-HPMC powder nenani elikhulu lezinye izinto eziwumpuphu, hlanganisa kahle ngomshini wokuxuba, bese ufaka amanzi ukuze ancibilike, khona-ke i-HPMC ingancibilika ngalesi sikhathi ngaphandle kokuhlanganiswa, ngoba kukhona i-HPMC encane kuphela ekhoneni ngalinye elincane i-Powder, izoncibilika ngokushesha uma ithintana namanzi. ——Abakhiqizi be-Putty powder kanye ne-mortar basebenzisa le ndlela. [I-Hydroxypropyl methylcellulose (HPMC) isetshenziswa njenge-thickener kanye ne-ejenti yokugcina amanzi ku-putty powder mortar.
2) Faka inani elidingekayo lamanzi ashisayo esitsheni bese ulifudumeza cishe ku-70°C. I-hydroxypropyl methylcellulose yengezwa kancane kancane ngaphansi kokuxubha kancane, ekuqaleni i-HPMC yantanta phezu kwamanzi, yabe isiba yisicaba kancane kancane, esasipholiswa ngaphansi kokuxubha.
2. Kunezinhlobo eziningana ze-hydroxypropyl methylcellulose HPMC. Uyini umehluko ekusetshenzisweni kwazo?
Impendulo: I-Hydroxypropyl methylcellulose HPMC ingahlukaniswa ngohlobo olusheshayo kanye nohlobo lokuncibilika okushisayo. Imikhiqizo yohlobo olusheshayo isakazeka ngokushesha emanzini abandayo bese inyamalala emanzini. Ngalesi sikhathi, uketshezi aluna-viscosity, ngoba i-HPMC ihlakazeka emanzini kuphela, akukho ukuncibilika kwangempela. Cishe imizuzu emi-2, i-viscosity yoketshezi iyanda kancane kancane, yakha i-colloid ecacile ethambile. Imikhiqizo encibilikayo eshisayo, uma ihlangana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho izinga lokushisa lehla liye ezingeni lokushisa elithile, i-viscosity izovela kancane kancane ize yakhe i-colloid ecacile ethambile. Uhlobo lwe-hot-melt lungasetshenziswa kuphela ku-putty powder kanye nodaka. Ku-liquid glue kanye nopende, kuzoba khona isenzakalo sokuhlela futhi alukwazi ukusetshenziswa. Uhlobo lwe-instant lunobubanzi bezicelo. Lungasetshenziswa ku-putty powder kanye nodaka, kanye ne-liquid glue kanye nopende, ngaphandle kokuphikisana.
3. Iyini ukusetshenziswa okuyinhloko kwe-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ezimbozweni, ezitsheni zokwenziwa, ezitsheni zobumba, kwezokwelapha, ekudleni, ezindwangu, kwezolimo, ezimonyweni, egwayi nakwezinye izimboni. I-HPMC ingahlukaniswa ibe: izinga lokwakha, izinga lokudla kanye nezinga lemithi ngokwendlela esetshenziswa ngayo. Njengamanje, iningi lemikhiqizo yasekhaya liyizinga lokwakha. Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe u-90% usetshenziselwa i-putty powder, kanti okusele kusetshenziselwa i-samente mortar kanye ne-glue.
4. Ungahlulela kanjani ikhwalithi ye-hydroxypropyl methylcellulose (HPMC) kalula nangokuqondakalayo?
Impendulo: (1) Amandla adonsela phansi athile: Uma amandla adonsela phansi athile emakhulu, kulapho esinda khona kungcono. Isilinganiso sikhulu, ngokuvamile ngenxa yokuthi
(2) Ubumhlophe: Nakuba ubumhlophe bungenakunquma ukuthi i-HPMC kulula ukuyisebenzisa, futhi uma kungezwa izinto zokwenza mhlophe ngesikhathi senqubo yokukhiqiza, kuzothinta ikhwalithi yayo. Kodwa-ke, imikhiqizo eminingi emihle inobumhlophe obuhle.
(3) Ubucwebe: Ubucwebe be-HPMC ngokuvamile bune-mesh engu-80 kanye ne-mesh engu-100, kanti i-mesh engu-120 incane. Iningi le-HPMC elikhiqizwa e-Hebei liyi-mesh engu-80. Uma ubucwebe bucwebe kakhulu, kuba ngcono kakhulu.
(4) Ukudlulisa ukukhanya: faka i-hydroxypropyl methylcellulose (HPMC) emanzini ukuze wakhe i-colloid esobala, bese uhlola ukudlulisa kwayo ukukhanya. Uma ukudlulisa ukukhanya kuphakeme, kungcono, okubonisa ukuthi kunezincane ezingancibiliki kuyo. . Ukuvuleka kwe-reactor eqondile ngokuvamile kuhle, kanti okwe-reactor evundlile kubi kakhulu, kodwa akusho ukuthi ikhwalithi ye-reactor eqondile ingcono kuneye-reactor evundlile, futhi kunezici eziningi zokunquma ikhwalithi yomkhiqizo. Okuqukethwe kweqembu le-hydroxypropyl kuyo kuphakeme, futhi okuqukethwe kweqembu le-hydroxypropyl kuphakeme, futhi ukugcinwa kwamanzi kungcono.
5. Yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Okuqukethwe kwe-hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili. Labo abanokuqukethwe okuphezulu kwe-hydroxypropyl ngokuvamile banokugcina amanzi kangcono. I-viscosity ephezulu, ukugcinwa kwamanzi, ngokulinganisela (kunokuba
6. Iyini i-viscosity efanele ye-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Impuphu ye-putty ngokuvamile ingu-100,000 yuan, futhi izidingo ze-mortar ziphakeme, futhi kulula ukuyisebenzisa engu-150,000 yuan. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcina amanzi, kulandelwe ukuqina. Ku-putty powder, inqobo nje uma ukugcina amanzi kukuhle futhi i-viscosity iphansi (70,000-80,000), kungenzeka futhi. Vele, uma i-viscosity iphakeme, kungcono ukugcinwa kwamanzi okuhlobene. Lapho i-viscosity idlula u-100,000, i-viscosity izothinta ukugcinwa kwamanzi. Akusekho okuningi. Impela) nayo ingcono, futhi i-viscosity iphakeme, futhi kungcono ukuyisebenzisa ku-mortar yesamente.
7. Yiziphi izinto eziyinhloko zokusetshenziswa kwe-hydroxypropyl methylcellulose (HPMC)?
Impendulo: Izinto zokusetshenziswa eziyinhloko ze-hydroxypropyl methylcellulose (HPMC): ukotini ocolisisiwe, i-methyl chloride, i-propylene oxide, nezinye izinto zokusetshenziswa, i-caustic soda, i-acid, i-toluene, i-isopropanol, njll.
8. Uyini umsebenzi oyinhloko wokusetshenziswa kwe-HPMC ku-putty powder, futhi ingabe kwenzeka ngamakhemikhali?
Impendulo: Ku-putty powder, i-HPMC idlala indima ezintathu zokuqina, ukugcinwa kwamanzi kanye nokwakhiwa. Ukuqina: I-Cellulose ingaqiniswa ukuze imise futhi igcine isisombululo silingana phezulu naphansi, futhi imelane nokuwa. Ukugcinwa kwamanzi: yenza i-putty powder yome kancane, futhi isize i-ash calcium ukuthi isabele ngaphansi kwesenzo samanzi. Ukwakhiwa: I-Cellulose inomphumela wokugcoba, ongenza i-putty powder ibe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kodwa idlala indima yokusiza kuphela. Ukwengeza amanzi ku-putty powder bese uyibeka odongeni kuyindlela yokusabela kwamakhemikhali, ngoba kwakheka izinto ezintsha. Uma ususa i-putty powder odongeni, uyigaye ibe yi-powder, bese uyisebenzisa futhi, ngeke isebenze ngoba izinto ezintsha (i-calcium carbonate) sezivele zakhekile. ) futhi. Izakhi eziyinhloko zempuphu ye-calcium yomlotha 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 yomlotha isemanzini nasemoyeni Ngaphansi kwesenzo se-CO2, kukhiqizwa i-calcium carbonate, kuyilapho i-HPMC igcina amanzi kuphela, isiza ukusabela okungcono kwe-calcium yomlotha, futhi ayihlanganyeli kunoma yikuphi ukusabela ngokwayo.
9. I-HPMC iyi-ether ye-cellulose engeyona i-ionic, ngakho-ke iyini i-non-ionic?
Impendulo: Ngokwe-layman, i-non-ion iyisithako esingeke si-ionise emanzini. I-ionization ibhekisela enkambisweni lapho i-electrolyte ihlukaniswa khona ibe ama-ion ashajekile angahamba ngokukhululeka ku-solvent ethile (njengamanzi, utshwala). Isibonelo, i-sodium chloride (NaCl), usawoti esiwudla nsuku zonke, uyancibilika emanzini bese u-ionises ukuze ukhiqize ama-ion e-sodium ahambayo ngokukhululeka (Na+) ashajekile kahle kanye nama-ion e-chloride (Cl) ashajekile kabi. Okusho ukuthi, uma i-HPMC ifakwa emanzini, ngeke ihlukane ibe ama-ion ashajekile, kodwa ikhona ngesimo sama-molecule.
10. Ingabe kukhona ubudlelwano phakathi kokwehla kwempuphu ye-putty kanye ne-HPMC?
Impendulo: Ukulahleka kwempuphu yempuphu ye-putty kuhlobene kakhulu nekhwalithi ye-calcium yomlotha, futhi akunandaba kangako ne-HPMC. Okuqukethwe kwe-calcium ephansi ye-calcium empunga kanye nesilinganiso esingafanele se-CaO kanye ne-Ca(OH)2 ku-calcium empunga kuzobangela ukulahleka kwempuphu. Uma kuhlobene ne-HPMC, khona-ke uma i-HPMC inokugcinwa kwamanzi okungekuhle, kuzobangela nokulahleka kwempuphu.
11. Lihlobene kanjani izinga lokushisa lejeli le-hydroxypropyl methylcellulose?
Impendulo: Izinga lokushisa lejeli le-HPMC lihlobene nokuqukethwe kwayo kwe-methoxy, uma okuqukethwe kwe-methoxy kuphansi↓, izinga lokushisa lejeli liphakeme.
12. Ungayikhetha kanjani i-hydroxypropyl methylcellulose (HPMC) efanele ngezinjongo ezahlukene?
Impendulo: Ukusetshenziswa kwempuphu ye-putty: izidingo ziphansi kakhulu, kanti i-viscosity ingu-100,000, okwanele. Into ebalulekile ukugcina amanzi kahle. Ukusetshenziswa kwe-mortar: izidingo eziphakeme, i-viscosity ephezulu, i-150,000 ingcono. Ukusetshenziswa kwe-glue: imikhiqizo esheshayo ene-viscosity ephezulu iyadingeka.
13. Uyini umehluko phakathi kohlobo lwe-cold-water instant kanye nohlobo lwe-hydroxypropyl methylcellulose oluncibilikayo enqubweni yokukhiqiza?
Impendulo: Uhlobo lwe-HPMC olusheshayo lwamanzi abandayo luphathwa nge-glyoxal ebusweni, futhi lusakazeka ngokushesha emanzini abandayo, kodwa aluncibiliki ngempela. Luncibilika kuphela lapho i-viscosity ikhula. Izinhlobo zokuncibilika okushisayo aziphathwa nge-glyoxal ebusweni. Uma inani le-glyoxal likhulu, ukuhlakazeka kuzoba ngokushesha, kodwa i-viscosity izokhula kancane, futhi uma inani lincane, okuphambene nalokho kuzoba yiqiniso.
14. Liyini iphunga le-hydroxypropyl methylcellulose (HPMC)?
Impendulo: I-HPMC ekhiqizwa yindlela yokunyibilikisa isebenzisa i-toluene ne-isopropanol njengezinyibilikisi. Uma ukugeza kungalungile kakhulu, kuzoba nephunga elisele.
15. Liyini elinye igama le-hydroxypropyl methylcellulose?
Impendulo: I-Hydroxypropyl Methyl Cellulose, isiNgisi: I-Hydroxypropyl Methyl Cellulose Isifinyezo: HPMC noma i-MHPC Igama elihlukile: I-Hypromellose; I-Cellulose hydroxypropyl methyl ether; I-Hypromellose, I-Cellulose, i-2-hydroxypropyl methyl I-Cellulose ether. I-Cellulose hydroxypropyl methyl ether I-Hyprolose.
16. Yini okufanele inakwe ekusetshenzisweni kwangempela kobudlelwano phakathi kwe-viscosity kanye nokushisa kwe-HPMC?
Impendulo: I-viscosity ye-HPMC ilingana ngokungalingani nezinga lokushisa, okungukuthi, i-viscosity iyanda njengoba izinga lokushisa lehla. I-viscosity yomkhiqizo esivame ukubhekisela kuwo ibhekisela kumphumela wokuhlolwa kwesisombululo sawo samanzi esingu-2% ekushiseni okungama-degrees Celsius angu-20.
Ekusetshenzisweni okusebenzayo, kufanele kuqashelwe ukuthi ezindaweni ezinomehluko omkhulu wokushisa phakathi kwehlobo nobusika, kunconywa ukusebenzisa i-viscosity ephansi ebusika, okuyinto evumelana kakhulu nokwakhiwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, i-viscosity ye-cellulose izokwanda, futhi umuzwa wesandla uzoba nzima lapho kukhuhlwa. I-viscosity ephakathi: 75000-100000 Isetshenziswa kakhulu kwi-putty. Isizathu: ukugcinwa kwamanzi okuhle. I-viscosity ephezulu: 150000-200000 Isetshenziswa kakhulu kwi-polystyrene particle thermal insulation mortar glue powder kanye ne-vitrified microbead thermal insulation mortar. Isizathu: i-viscosity ephezulu, i-mortar akulula ukuyilahla, ukulenga, nokuthuthukisa ukwakhiwa.
17. Ukusetshenziswa kwe-HPMC ku-putty powder, siyini isizathu samabhamuza ku-putty powder?
Impendulo: Ku-putty powder, i-HPMC idlala indima ezintathu zokuqina, ukugcinwa kwamanzi kanye nokwakhiwa. Ungahlanganyeli kunoma yikuphi ukusabela. Izizathu zamabhamuza: 1. Faka amanzi amaningi kakhulu. 2. Ingqimba engezansi ayomile, mane ukhuhle enye ingqimba phezulu, futhi kulula ukuyikhipha igwebu.
Isikhathi sokuthunyelwe: Jan-13-2023