Ndi zinthu ziti zomwe zimakhudza kusungidwa kwamadzi kwa hydroxypropyl methylcellulose

Makulidwe apamwamba a hydroxypropyl methylcellulose, zabwino zomwe zimasungidwa ndi madzi. Makulidwe ndi gawo lofunikira la hpmc. Pakadali pano, opanga anzawo osiyanasiyana amagwiritsa ntchito njira zosiyanasiyana zoyezera mafayilo a HPMC. Njira zazikuluzi zimadana ndi Rotovisko, Huspler, Ulonda wa Ulonda ndi Brookfield.

Pazinthu zomwezo, zomwe zikuchitika m'mawuwo zimayesedwa ndi njira zosiyanasiyana ndizosiyana kwambiri, komanso zinanso zinanso. Chifukwa chake, poyerekeza mawonekedwe, onetsetsani kuti mwachita izi pakati pa njira zomwezi, kuphatikizapo kutentha, rotor, etc.

Kwa kukula kwa tinthu tating'onoting'ono, ndikulimbikitsa tinthu tambiri, kukonzanso kwamadzi. Tizikhala zikuluzikulu za cellulose ether zimalumikizana ndi madzi, mawonekedwe amasungunuka nthawi yomweyo kuti apange gels, yomwe imakulunga zinthuzo kupewa kutetezedwa mosalekeza kwa mamolekyulu amadzi. . Imakhudza kwambiri madzi osungirako ma cellulose ether ether, ndipo solumu ndi imodzi mwazinthu zomwe zimasankha cellulose ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether. Ubwino ndi mndandanda wofunikira wa methyl cellulose ether. MC yomwe imagwiritsidwa ntchito pa matope a ufa imafunikira kuti ikhale ufa, wokhala ndi madzi ochepa, ndipo zabwino zimafunikiranso 20% mpaka 60% ya kukula kwa tinthu 63um. Ubwino umakhudza kusungunuka kwa hydroxypropyll methylcellulose ether. Coarsing MC nthawi zambiri amakhala granular, ndipo ndikosavuta kusungunuka m'madzi popanda kuphatikizika, koma kuchuluka kwa chilengedwe ndiodekha kwambiri, kotero sioyenera kugwiritsa ntchito matope owuma. Mu matope a ufa wa ufa, MC imabalalitsidwa pakati pa zinthu zokhala ngati zochulukirapo monga okalamba, mafilimu abwino ndi simenti. Ufa wokwanira wokwanira ungapewe kuwumbika kwa methyl cellulose ether ether mukasakanikirana ndi madzi. MC imawonjezeredwa ndi madzi kuti isungunuke ma agglomerates, ndizovuta kufalitsa ndikusungunuka. MC yokhala ndi zouzira za nearder sizangowononga zotayika, komanso zimachepetsa mphamvu yakomweko yamatope. Pamene matope owuma ufa atamangidwa pamalo akuluakulu, litaye mwachangu matope a ufa wa ufa umachepetsedwa kwambiri, ndipo kusokonekera kumachitika chifukwa cha nthawi youritsa. Pakuti matope omwe amagwiritsa ntchito zomanga zamakina, chifukwa cha nthawi yosangalatsa yosangalatsa, kukongola kumafunika kukhala wapamwamba.

Nthawi zambiri, mafakiti apamwamba, abwinobwino amadzisungira madzi. Komabe, mafayilo apamwamba komanso okwera kwambiri olemera a MC, kutsika kolingana kolingana kwake, komwe kumadzetsa mavuto pa matope ndi kapangidwe ka matope. Maonekedwe ake, zoonekeratu kuti zimakula mphamvu za matope, koma sikofanana. Matope apamwamba, matope onyowa azikhala. Pakumanga, idzamatira pakhungu ndikutsatira kwambiri. Koma sizowonjezera kuchuluka kwamphamvu kwa matope onyowa. Pakumanga, ntchito ya magwiridwe antchito siyikudziwika. M'malo mwake, mawilo otsika kwambiri koma kusinthidwa methyl cellose celluse kukhala ndi luso labwino pokonzanso mphamvu ya matope onyowa.

Kukula kuchuluka kwa cellulose ether ether owonjezera matope, magwiridwe antchito abwino a madzi, ma viscker, omwe ali ndi magwiridwe antchito.

Chisangalalo cha HPMC chimathandizanso kuti madzi asasungidwe. Nthawi zambiri, peteryl cellulose etchese yowoneka bwino koma njira zosiyanasiyana, monga kuchuluka kwa zowonjezera zomwezo, kumalipira zabwino, zabwino zomwe madzi adasunga.

Kusunga kwamadzi kwa HPMC kumakhudzananso ndi kutentha komwe kumagwiritsidwa ntchito, ndipo madzi osungira madzi a methyl cellulose ethel ethel amachepetsa ndi kuchuluka kwa kutentha. Komabe, muzinthu zofunikira, matope owuma nthawi zambiri amagwiritsidwa ntchito kutentha kwambiri (madigiri 40) m'malo ambiri, omwe nthawi zambiri amathandizira kuchiritsa sitavala matope. Kusungidwa kwamadzi kwadzetsa kuzindikira kuti zonse zogwirira ntchito komanso kusokonekera kumakhudzidwa, ndipo ndizosavuta kuti muchepetse njira zamagetsi omwe amapezeka pamikhalidwe yotsatira. Ngakhale methyl hydrothyl cellulose eleulose exorcose owonjezera pakali pano la kukula kwaukadaulo, kudalira kwake kumatha kumabweretsabe kufooka kwa matope. Ngakhale kuchuluka kwa methyl hydrothyl cellulose (mawonekedwe achilimwe) amakulitsidwa, kugwirira ntchito komanso kukana kukanabe zofuna kugwiritsa ntchito. Kudzera mu chithandizo chapadera, monga kuwonjezera kuchuluka kwa mathupi, MC imatha kusunga madzi ake mosasunthika kumatentha kwambiri, kuti ithe kupatsa magwiridwe antchito owopsa.