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I-Methyl cellulose isetshenziswa kabanzi
Incazelo
I-Methylcellulose i-non-ionic cellulose ether, ekhiqizwa i-etherification ngokwethula amaqembu e-methyl ku-cellulose.
I-Methylcellulose iyi-cellulose methyl ether. Izinhlayiya ezincane ezimhlophe noma eziphuzi ngokukhanyayo noma ezimpunga, ezinofilamentous noma eziyimpushana. Ayinaphunga futhi ayinambitheki, cishe ngama-27% kuya ku-32% wamaqembu e-hydroxyl akhona ngendlela yamaqembu e-methoxy. Amazinga ahlukene e-methyl cellulose aneziqu ezihlukene ze-polymerization, kusukela ku-50 kuya ku-1000; Futhi isisindo sayo samangqamuzana (isilinganiso) sisuka ku-10000 siye ku-22000 Da, futhi izinga layo lokushintsha lichazwa njengenani elimaphakathi lamaqembu e-methoxy, axhunywe kuyunithi ngayinye ye-glucose anhydride eketango.
incazelo2
Izakhiwo Zomzimba Nezamakhemikhali
1, Ukubukeka:Impushana emhlophe noma emhlophe njenge-granular, engenaphunga futhi ayinambitheki.
2, Isixazululo:Cishe engancibiliki ku-ethanol, i-ether, i-chloroform (1: 1) enhlanganisela ingakha isixazululo se-viscous esicacile noma esimisiwe. Emanzini ashisayo angama-80-90 oC ukuvuvukala okusheshayo, ukupholisa ngemva kokuqedwa ngokushesha, ukuchithwa kwamanzi ekamelweni lokushisa kuzinzile, ijeli yokushisa ephezulu, Iba nenguquko ehlehliswayo isuka kujeli iye ekuncibilikeni ngemva kokushisisa nokupholisa.
3, izici:Ukumanzisa okuhle kakhulu, ukuhlakazeka, ukunamathela, ukujiya, ukufaka i-emulsifying, ukubamba amanzi kanye nokwakheka kwefilimu, nokungafinyeleli kukawoyela. Ifilimu inokuqina okuhle kakhulu, ukuguquguquka nokungafihli. Ngenxa yokuthi ayiyona i-ionic, ingahambisana namanye ama-emulsifiers, kodwa kulula ukuyikhipha futhi isixazululo sizinzile ku-pH 2-12.
4, Ukuminyana:1.3g/cm;Ukuminyana okubonakala: 0.25-0.7 g/cm3.
5, Izinga lokushisa lokushintsha umbala:190-200oC.
6, izinga lokushisa le-Carbonization:225-230oC.
7, Ukungezwani kwendawo:47-53 den/cn.
Ukucaciswa komkhiqizo
Ishidi Losuku Lokusebenza:
| Igama lephrojekthi | Izinkomba(55AX Series) |
| I-Methoxyl | 27.0-32.0 |
| Izinga lokushisa le-gel | 50-55 |
| Isisindo esomile | ≤5 |
| Izinsalela ezivuthayo | ≤1 |
| Insimbi enzima | ≤20 |
| Usawoti we-Arsenic | ≤2 |
| Ph. | 5.0-8.0 |
| I-Viscosity | Bona ukuhlukaniswa kwe-viscosity |
Imininingwane ye-viscosity
| Isigaba | Ukucaciswa | Ibanga |
| I-viscosity ephansi | 50 | 40-60 |
| 100 | 80-120 | |
| 400 | 350-450 | |
| I-viscosity ephezulu | 1000 | 800-1200 |
| 2000 | 1600-2400 | |
| 4000 | 3500-4500 | |
| I-viscosity ephezulu eyengeziwe | 30000 | 24000-36000 |
| 50000 | 45000-55000 | |
| 75000 | 70000-80000 | |
| 100000 | 85000-105000 |