Sida loo ogaado ashtarka ay ka kooban tahay hydroxypropyl methylcelrelose?

Ash Ash oo ka kooban waa tilmaan muhiim ah oo ahhydroxypropyl methylrcellulose. Macaamiisha badan ayaa had iyo jeer weydiiya markay fahmaan hyroxypropyl methylcelrelosuse: Waa maxay qiimaha dambas? Hydroxypropyl methylrcellellase leh waxa ku jira dambas yar micnaheedu waa daahirnimo sare; Cellulose oo leh waxa ku jira ash oo waaweyn ayaa macnaheedu yahay inay jiraan wax badan oo waxyeelo ah oo ku jira, kaas oo saameyn ku yeelan doona saameynta isticmaalka ama kordhineysa qaddarka isugeynta. Marka macaamiisha ay doortaan hydroxypropyl methylcelrelosuse, had iyo jeer waxay si toos ah ugu iftiimeeyaan unugyada dabka oo gubto si ay u tijaabiyaan waxa ku jira dambaska ee cellulose. Laakiin habkan ogaanshaha waa mid aan caadi ahayn, maxaa yeelay soosaarayaal badan ayaa ku dar dardargelinta isku-darka ee unugyada cellulose. Dusha sare, chutlulose wuxuu leeyahay dambas aad u yar kadib gubashada, laakiin ficil ahaan, haynta biyaha ee hydroxypropyl methylcelrelose ma fiicna.

Marka sidee ayaan si sax ah u ogaan karnaa ashtarka ay ka kooban tahay hydroxypropyl methylcelrelose? Qaabka saxda ah ee ogaanshaha waa in loo isticmaalo foornada muffle si loo ogaado.

Isku-dheellitirka qalabka loo yaqaan 'falanqaynta qalabka', foornooyinka muffle sare, foornada korantada.

Habka tijaabada:

1) Marka hore, ku rid 30ml proceceel ah foorno kulul oo kuleylka ah oo gubtay (500 ~ 600) ° C 30-ka C, oo xir albaabka foornada si aad u yareyso heerkulka foornada ilaa ka hooseeya 200 ° C, ka dibna qaado Ka bax wax qabad oo u dhaqaaq si aad u dhinto si aad u qaboojiso (20 ~ 30) min, miisaan.

2) Miisaankiisu yahay 1.0 g eehydroxypropyl methylrcelluloseIsku-dheellitirka falanqaynta, ku dheji saamiga miisaanka ah oo lagu khafiifiyo, oo ku ridaya muunadda foornada korantada ee loo yaqaan 'koralka foornada korantada loogu talagalay karraadashooyinka, ku dar heerkulka qolka, ku dar sulturic acid (0.5-1.5) oo ku dheji foornada korantada Kaarboon oo dhameystiran. Ka dib u gudub foornada muffle ee heerkulka sare, gubi (500 ~ 600) ℃ saacad, marka foornada foornada kulul ay ka hooseyso ka hooseyso 200 ℃, ka qaad oo ku dheji Si loo qaboojiyo (20 ~ 30) min, ka dibna miisaanka isku-dheellitirka falanqaynta.

Hadhaaga isku-darka ayaa loo xisaabiyaa iyadoo la raacayo qaaciddada (3):

m2-m1

Dabaqa dabka dabka (%) = × 100 ........................

m

Qaaciddada: M1 - cufnaanta mugdiga ah ee madhan, g;

M2 - cuf badan oo hadhaaga ah iyo habaabin, g;

m - cufnaanta muunadda, gudaha g.