Isosiyete ya Cellulose ya Tiantai yihariye mu bushakashatsi, iterambere, umusaruro no guteza imbere ibicuruzwa bya hydroxypropyl methyl churture ya HPMC. Isuku ya HPMC HydroxyPropyl Methyl Cellulose nigicuruzwa bireba cyane kubakora nabakoresha. Hano twihuta cyane kuri methyl abakora selile kugirango batange intangiriro irambuye, nizeye gusoma ngo dufashe.
Kugena ubuziranenge bwa HPMC HydroxyPropyl Methyl Cellulose
Ihame
HydroxyPropyl Methyl Celllose Hpmc irashonga muri 80% Ethanol. Nyuma yo gushonga no gukaraba inshuro nyinshi, 80% byashongeshejwe muri sample biratandukana kandi bikurwaho kugirango babone hydroxypropyl methyl Metmc.
Reagent
Keretse niba byavuzwe ukundi, gusa reagents gusa zemejwe kuba isesengura ryiza kandi ryaka cyangwa amazi ya deioned cyangwa amazi agereranywa cyangwa amazi agereranywa azakoreshwa mubisesengura.
95% Ethanol (GB / T 679).
Ethanol, 80% Igisubizo, Dilute 95% Ethanol (E.2.1) 840ML n'amazi kugeza 1L.
BMI (GB / T 12591).
Igikoresho
Ibikoresho bisanzwe bya laboratoire
Magnetic ashyushya ukinguye, atera inkongoro yuburebure kuri 3.5cm.
Kuzuyemo ibisasu, 40ml, aperture 4.5μm ~ 9μm.
Ikirahure cyo hejuru yikirahure, φ10cm, umwobo wo hagati.
Beaker, 400ml.
Guhora kwiyuhagira amazi.
Ifuru, irashobora kugenzura ubushyuhe kuri 105 ℃ ± 2 ℃.
Porogaramu
Kenshi upima icyitegererezo cya 3g (nukuri kuri 0,001g) mubyago bihoraho 65 ℃. Kubyutsa iminota 10.
Reka gukangurira, shyira beaker ubwo bushyuhe buri gihe bwo kwiyuhagira 60 ℃ ~ 65 ℃, hagarara kugirango ukemure ikibazo gihoraho, hanyuma usuke rwose muburyo buhoraho bwo gukandamizwa.
Add 150mL 80% ethanol at 60℃ ~ 65℃ to the beaker, repeat the above stirring and filtering operations, and then wash the beaker, surface dish, stirring rod and thermometer carefully with 80% ethanol at 60℃ ~ 65℃, so that the insoluble matter is completely transferred to the crucible, and further wash the contents of the crucible. Kunywa bigomba gukoreshwa muri iki gikorwa no kumisha agatsima bigomba kwirindwa. Niba ibice binyuze muyungurura, guswera bigomba gutinda.
Icyitonderwa: Bikwiye kwemerwa ko chride ya sodium murugero yogejwe rwose na 80% ethanol. Niba bibaye ngombwa, 0.1Mol / l feza nitrate igisubizo na 6Mol / l nitric acide irashobora gukoreshwa kugirango igenzurwe niba ibibyimba birimo chloride ion.
Ku bushyuhe bwicyumba, ibirimo bikaba byogejwe kabiri hamwe na 95% ethanol kuri 50ml, hanyuma amaherezo hamwe na Ethyl MI20ML yo gukaraba kabiri. Igihe cyo kurwara ntigikwiye kuba kirekire. Abasimba bashyizwe mu ntera kandi bakubita ku bwogero bwo kwiyuhagira kugeza igihe nta Etyl Mi odor yabonetse.
Icyitonderwa: Gukaraba hamwe na Ethyl MI birakenewe gukuraho burundu ethanol kuva mubintu bidashoboka. Niba Ethanol idakurwaho burundu mbere yo gukama, gukuraho burundu ntibishoboka mugihe cyo kumanura.
Icyuma Cyinshi kandi cyashyizwe mu kigero kuri 105 ℃ ± 2 ℃ kugirango yumishe 2h, hanyuma yimurirwa, yumye, yumisha kuri 1h kandi apima ubukonje kugeza igihe impinduka rusange itarenze 0.003g. Mugihe cyo kwiyongera kwinshi mugihe cya 1h, misa yo hasi yitegereje izatsinda.
Ibisubizo byabazwe
Isuku ya HPMC HydroxyPropyl Methyl Cellulose yabazwe nkigice rusange p, kandi agaciro kagaragaye nka%
M1 - misa y'amakosa yumye, muri Grams (G);
M0 - misa y'ibice by'ibizamini, mu garama (G);
W0 - Ubushuhe hamwe nibirimo bihindagurika byicyitegererezo,%.
Imibare isobanura agaciro k'ibipimo bibiri bisa bigabanijwe kugeza ku icumi nkibisubizo.
PKwinjira
Itandukaniro ryuzuye hagati yibipimo bibiri byigenga byabonetse muburyo bwo gusubiramo ntabwo biruta 0.3%, byatanzwe birenze 0.3% ntibirenga 5%.
Igihe cyagenwe: Feb-14-2022