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Methyl cellulose inoshandiswa zvakanyanya
Tsanangudzo
Methylcellulose isiri-ionic cellulose ether, iyo inogadzirwa ne etherification nekuunza methyl mapoka mu cellulose.
Methylcellulose inonzi cellulose methyl ether. Zvimedu zvidiki zvidiki zvichena kana zvichena yero kana kuti pfumbu, filamentous kana hupfu. Haina hwema uye isinganakidze, ine ingangoita 27% kusvika 32% yemapoka ehydroxyl aripo muchimiro chemapoka emethoxy. Mhando dzakasiyana dzemethyl cellulose dzine madhigirii akasiyana epolymerization, kubva pa50 kusvika ku1000; Uye huremu hwayo hwema molecular (avhareji) kubva ku10000 kusvika ku22000 Da, uye dhigirii yaro yekutsiviwa inotsanangurwa sevhareji yenhamba yemapoka e-methoxy, ayo akabatanidzwa kune imwe neimwe glucose anhydride unit pane ketani.
tsananguro2
Zvenyama uye Chemical Properties
1, Chitarisiko:Ichena kana quasi-white fibrous kana granular poda, isinganhuhwi uye isinganakidze.
2, Solution:Inenge isingasviki mu ethanol, ether, chloroform (1: 1) mumusanganiswa inogona kuumba mhinduro yakajeka kana yakamiswa. Mu 80-90 oC mvura inopisa inokurumidza kuzvimba, kutonhora mushure mekukurumidza kunyungudika, kunyungudika kwemvura pane tembiricha yekamuri yakanyatsogadzikana, tembiricha gel, Inoita shanduko inodzoreredzwa kubva kujeli kuenda mukunyungudika mushure mekupisa nekutonhora.
3, Hunhu:Yakanakisa kunyorova, kupararira, kunamatira, kukora, emulsifying, kubata-mvura uye kugadzira firimu, uye kusamira kwemafuta. Iyo firimu ine yakanakisa kuoma, kuchinjika uye pachena. Nemhaka yokuti haisi-ionic, inogona kuwirirana nemamwe emulsifiers, asi zviri nyore kuiswa munyu uye mhinduro yacho yakagadzikana muhuwandu hwepH 2-12.
4, Density:1.3g/cm;Kuwanda kuri kuita: 0.25-0.7 g/cm3.
5, Discoloration tembiricha:190-200oC.
6, Carbonization tembiricha:225-230oC.
7, Kushushikana kwepamusoro:47-53 den/cn.
Product specification
Technical Date Sheet:
| Zita rechirongwa | Zviratidzo(55AX Series) |
| Methoxyl | 27.0-32.0 |
| Gel tembiricha | 50-55 |
| Dry weightlessness | ≤5 |
| Kupisa zvakasara | ≤1 |
| Heavy metal | ≤20 |
| Arsenic munyu | ≤2 |
| Ph. | 5.0-8.0 |
| Viscosity | Ona viscosity classification |
Viscosity tsanangudzo
| Category | Tsanangudzo | Range |
| Low viscosity | 50 | 40-60 |
| 100 | 80-120 | |
| 400 | 350-450 | |
| High viscosity | 1000 | 800-1200 |
| 2000 | 1600-2400 | |
| 4000 | 3500-4500 | |
| Extra high viscosity | 30000 | 24000-36000 |
| 50000 | 45000-55000 | |
| 75000 | 70000-80000 | |
| 100000 | 85000-105000 |