1. Iyini i-alias ye-hydroxypropylllyllose methylcellulose?
- --Swer: I-Hydroxypropyl Methyl Cellulose, isiNgisi: I-Hydroxypropyl methyl cellulose Isifinyezo: I-HPMC noma iMHPCC ALIAS: IHypromellose; Cellulose hydroxypropyll methyl ether; I-Hypromellose, i-cellulose, 2-hydroxypropylmethyl cellulose ether. I-cellulose hydroxypropyll methyl etrolose.
2. Yiluphi uhlelo lokusebenza oluphambili lwe-hydroxypropylllm methylcellulose (HPMC)?
- - I-HPMC isetshenziswa kabanzi ezintweni zokwakha, ukumboza, ama-desin okwenziwa, ubumba, ubuciko, umuthi, ugwayi, ugwayi, ugwayi kanye nezinye izimboni. I-HPMC ingahlukaniswa iba ibanga lokwakha, ibanga lokudla kanye nebanga lezemithi ngokwenhloso. Njengamanje, iningi lemikhiqizo yasekhaya ibangeni lokwakha. Ebangeni lokwakha, i-putty powder isetshenziswa ngenani elikhulu, cishe ama-90% asetshenziselwa i-putty powder, futhi konke kusetshenziselwa udaka ngosimende neglue.
3. Kunezinhlobo eziningi ze-hydroxypropyll methylcellulose (HPMC), futhi yini umehluko ekusebenziseni kwazo?
--SENSER: I-HPMC ingahlukaniswa ngohlobo olusheshayo nohlobo lokududuzayo. Imikhiqizo yohlobo olusheshayo isabalalisa ngokushesha emanzini abandayo futhi inyamalale emanzini. Ngalesi sikhathi, uketshezi alunakubonakala ngoba i-HPMC ihlakazeka kuphela emanzini ngaphandle kokuchithwa kwangempela. Cishe imizuzu emi-2, i-viscosity yoketshezi inyuka kancane kancane, yakha i-colloid esobala ye-volcous. Imikhiqizo eshisayo ehlekisayo, lapho ihlangana namanzi abandayo, ingahlakazeka ngokushesha emanzini ashisayo bese inyamalala emanzini ashisayo. Lapho amazinga okushisa ehla emazingeni okushisa athile, i-viscosity izovela kancane kancane ize ibe yi-colloid esobala ye-viscous. Uhlobo olushisayo olushisayo lungasetshenziswa kuphela ku-putty powder nodaka. Ku-glue kefu upende, kuzoba khona into ehlelekile futhi ngeke isetshenziswe. Uhlobo olusheshayo lunebanga elibanzi lezicelo. Ingasetshenziswa ku-putty powder kanye nodaka, kanye ne-glue key upende, ngaphandle kokuphikisana.
4. Ungayikhetha Kanjani i-hydroxyproppropyslose efanelekile (HPMC) ngezinhloso ezahlukahlukene?
- Into ebalulekile ukugcina amanzi kahle. Ukusetshenziswa kodaka: izidingo eziphakeme, i-viscosity ephezulu, i-150,000 ingcono. Ukusetshenziswa kwe-glue: Imikhiqizo esheshayo enokubonakala okuphezulu iyadingeka.
5. Yini okufanele inakeke ekusetshenzisweni kwangempela kobudlelwano phakathi kokubonakala nokushisa kwe-HPMC?
- - I-Viscosity ye-HPMC ilingana ngokungapheli kumazinga okushisa, okusho ukuthi, i-viscosity inyuka njengoba izinga lokushisa lincipha. I-viscosity yomkhiqizo esivame ukubhekisa kuye ukuthi kubhekiswa kumphumela wokuhlolwa kwesisombululo sayo esingamanzi esingu-2% ekushiseni kwama-degree angama-20.
Kuzinhlelo zokusebenza ezisebenzayo, kufanele kuqashelwe ukuthi ezindaweni ezinemibono emikhulu yokushisa phakathi kwehlobo nobusika, kunconywa ukusebenzisa i-viscotive ephansi ebusika, evumelana kakhulu nokwakha. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, ukubonakala kwe-cellulose kuzokwanda, futhi isandla sizizwa siba nzima lapho sikhahlela.
I-Viscosity Ephakathi: 75000-100000 ikakhulukazi isetshenziselwa ukubeka ama-putty
Isizathu: Ukugcinwa kwamanzi okuhle
I-Viscosity ephezulu: 150000-200000 ikakhulukazi esetshenziselwa i-polystyrene izinhlayiya zokufakwa kwezinhlayiya zokufakelwa kwerabha enjoloba kanye ne-vitrified microbead inhlabathi yokufakelwa okushisayo okushisayo.
Isizathu: Ukubonakala kuphakeme, udaka akulula ukuwa, sag, futhi kwathuthukiswa ukwakhiwa.
I-6. I-HPMC iyi-ether engeyona eye-tholsose, ngakho-ke yini okungeyona eye-ionic?
- I-Ionization isho inqubo lapho i-electrolyte ihlukaniswe khona ngama-ion ashadiwe angahamba ngokukhululeka kwi-solvent ethile (njengamanzi, utshwala). Isibonelo, i-sodium chloride (i-NACL), usawoti esiwudlayo nsuku zonke, anciphise emanzini kanye nama-ionizes ukukhiqiza ngokukhululekile ama-sodium ion (NA +) akhokhiswa kahle nama-chloride ions (cl) akhokhiswa kabi. Lokho kusho ukuthi, lapho i-HPMC ibekwa emanzini, ngeke ihlukanise ama-ions amakhokho, kepha ikhona ngesimo sama-molecule.
Isikhathi sePosi: APR-26-2023