Tiantai Cellulose ụlọ ọrụ pụrụ iche na nyocha, mmepe, mmepụta na ahịa nkwalite nke hydroxypropyl methyl cellulose HPMC ngwaahịa.Ịdị ọcha nke HPMC hydroxypropyl methyl cellulose bụ isiokwu ngwaahịa kachasị emetụta maka ndị nrụpụta na ndị ọrụ.N'ebe a, anyị na-emepụta hydroxypropyl methyl cellulose iji nye nkọwa mmeghe, enwere m olileanya ịgụ iji nyere aka.
Mkpebi ịdị ọcha nke HPMC hydroxypropyl methyl cellulose
Ụkpụrụ
Hydroxypropyl methyl cellulose HPMC bụ ihe na-adịghị sosoluble na 80% ethanol.Mgbe agbazechara na ịsa ahụ ọtụtụ oge, 80% ethanol etisasịwo na nlele ahụ na-ekewa ma wepụ ya iji nweta HPMC hydroxypropyl methyl cellulose dị ọcha.
Rdị ọkụ
Ọ gwụla ma ekwuputara n'ụzọ ọzọ, naanị reagents akwadoro na ọ bụ nyocha dị ọcha na mmiri distilled ma ọ bụ deionized mmiri ma ọ bụ mmiri nke ịdị ọcha yiri ka a ga-eji na nyocha.
95% ethanol (GB/T 679).
Ethanol, 80% ngwọta, itughari 95% ethanol (E.2.1) 840mL na mmiri na 1L.
BMI (GB/T 12591).
Akụrụngwa
Ngwa ụlọ nyocha nkịtị
Igwe ọkụ ọkụ magnetik, ogologo mkpanaka na-akpali ihe dịka 3.5cm.
Crucible filtration, 40ml, oghere 4.5μm ~ 9μm.
Nri elu iko, φ10cm, oghere etiti.
Mmiri ara ehi, 400 ml.
Mmiri mmiri na-ekpo ọkụ mgbe niile.
Oven, nwere ike ịchịkwa okpomọkụ na 105 ℃ ± 2 ℃.
Mmemme
Jiri nlezianya tụọ ihe nlele 3g (nke ziri ezi na 0.001g) n'ime beaker dị arọ mgbe niile, tinye 150mL 80% ethanol na 60 ℃ ~ 65 ℃, tinye mkpanaka magnet n'ime ihe na-ekpo ọkụ magnetik, kpuchie efere elu, tinye thermometer n'etiti. oghere, gbanye kpo oku stirrers, mezie akpali akpali ọsọ iji zere splashing, na-na-na-enwe okpomọkụ na 60 ℃ ~ 65 ℃.Na-akpali maka 10 min.
Kwụsị ịkpali, tinye beaker n'ime mmiri ịsa mmiri na-ekpo ọkụ mgbe niile nke 60 ℃ ~ 65 ℃, guzoro ka dozie ihe a na-apụghị imeri emeri, ma wụsa mmiri dị ukwuu dị ka o kwere mee n'ime ihe nzacha ịdị arọ mgbe niile.
Tinye 150mL 80% ethanol na 60 ℃ ~ 65 ℃ na beaker, megharịa n'elu edemede na nzacha ọrụ, wee saa beaker, elu efere, mkpali mkpanaka na temometa nke ọma na 80% ethanol na 60℃ ~ 65℃, nke mere na A na-ebufe ihe na-adịghị edozi ahụ kpamkpam na ihe mkpuchi ahụ, ma na-asachapụ ihe ndị dị na ya.Ekwesịrị iji mmiri ara ehi mee ihe n'oge ọrụ a na ihicha achicha ahụ kwesịrị izere.Ọ bụrụ na ụmụ irighiri ihe na-agafe na nzacha, ekwesịrị iji nwayọ nwayọ nwayọ.
Rịba ama: ekwesịrị ijide n'aka na 80% ethanol na-asachapụ sodium chloride dị na nlele ahụ kpamkpam.Ọ bụrụ na ọ dị mkpa, enwere ike iji 0.1mol/L silver nitrate solution na 6mol/L nitric acid iji chọpụta ma nzacha ahụ nwere ion chloride.
N'ebe okpomọkụ dị n'ime ụlọ, a na-asa ihe dị n'ime crucible ugboro abụọ na 95% ethanol na 50mL, na n'ikpeazụ na ethyl mi20mL maka ịsacha nke abụọ.Oge nzacha ekwesịghị ịdị ogologo.A na-etinye crucible ahụ na beaker ma kpoo ọkụ na bat nke uzuoku ruo mgbe ahụghị isi ethyl mi.
Mara: ịsacha na ethyl mi dị mkpa iji wepụ ethanol kpamkpam na ihe na-adịghị edozi ahụ.Ọ bụrụ na ewepụghị ethanol kpamkpam tupu ihicha oven, iwepụ kpamkpam agaghị ekwe omume n'oge ihicha oven.
A na-etinye crucible na beaker n'ime oven na 105 ℃ ± 2 ℃ maka ihicha maka 2h, wee bufee ya na dryer maka jụrụ oyi maka 30min ma tụọ ya, ma kpoo ya maka 1h ma tụọ maka oyi ruo mgbe mgbanwe mgbanwe ahụ abụghị ihe karịrị 0.003g. .N'ihe na-abawanye ụba n'oge 1h ihicha, nke kachasi ala hụrụ ga-emeri.
A gbakọrọ nsonaazụ ya
A gbakọrọ ịdị ọcha nke HPMC hydroxypropyl methyl cellulose dị ka obere akụkụ P, na ọnụ ahịa ya bụ %
M1 - uka nke ihe a mịrị amị na-adịghị edozi, na gram (g);
M0 - Mass nke akụrụngwa ule, na gram (g);
W0 - Mmiri na ihe na-agbanwe agbanwe nke ihe nlele,%.
A na-ebelata uru pụtara mgbakọ na mwepụ nke nha abụọ ahụ yiri ya ka ọ bụrụ otu ntụpọ dị ka nsonaazụ nha.
Pnlaghachi azụ
Ọdịiche zuru oke n'etiti nha abụọ nọọrọ onwe ha enwetara n'okpuru ọnọdụ nkwugharị adịghị karịa 0.3%, ma ọ bụrụhaala na ihe karịrị 0.3% agaghị agafe 5%.
Oge nzipu: Feb-14-2022