HPMC Chinese dzina la hydroxpyl celyl cellouse, mtundu wa matope womwe umagwiritsidwa ntchito posungiramo madzi, ndiye malo osungitsa madzi omwe amagwiritsidwa ntchito m'matope.
Njira yopangira HPMC imakhala ya thonje (nyumba zapakhomo) mutatha kuyamwa, kukwezeka ndi m'badwo wa zinthu za etheyacharide. Iyo ilibe mlandu ndipo sunatengere ma iyoyo mu siyoyi, ndipo magwiridwe ake ndi okhazikika. Mtengo wake ndi wotsika kuposa mitundu ina ya ethel ether, motero amagwiritsidwa ntchito kwambiri matope osakanikirana.
Hydroxypylm methy cellulose ntchito: imatha kupanga matope atsopano kuti akhale ndi ma vinya ena onyowa, pewani tsankho. . (Kusungidwa kwamadzi) mpweya wake womwe umati, umatha kuyambitsa thovu zazing'ono, kusintha matope.
Kukula kwa mafayilo a hydroxypropyl methy cellulose ether ether, malo abwino osungira. Makulidwe ndi gawo lofunikira la hpmc. Pakadali pano, opanga anzawo osiyanasiyana amagwiritsa ntchito njira zosiyanasiyana zoyezera mafayilo a HPMC. Njira zazikuluzikulu zimaphatikizapo Haarhatovisko, Huspler, Ulonda wa Ulonda ndi Brookfield.
Pazinthu zomwezo, zotsatira za ufa zimayesedwa ndi njira zosiyanasiyana zimasiyanasiyana, ndipo zina zimachulukana. Chifukwa chake, poyerekeza mawonekedwe, ziyenera kuchitidwa pakati pa njira yoyeserera yomweyi, kuphatikiza kutentha, rotor, etc.
Kwa kukula kwa tinthu tating'onoting'ono, ndikulimbikitsa tinthu tambiri, kukonzanso kwamadzi. Pambuyo pa tinthu tambiri ta kulumikizana ndi madzi, mawonekedwe ake nthawi yomweyo amasungunuka ndipo amapanga gel kuti mukulungiritse ma mamolekyulu amadzi kuti asungunuke. Nthawi zina, ngakhale nthawi yayitali yodzudzulidwa silingathe kubalalika komanso kusungunuka, ndikupanga njira yoyatsira moto kapena kutsekera. Kusunga kwamadzi kwa ethel ethel kumakhudzidwa kwambiri, ndipo kusungunuka ndi chimodzi 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 ether ether. Ubwino ndi mndandanda wofunikira wa methyl cellulose ether. MC ya matope owuma imafuna ufa, zamadzi ochepa, ndipo zabwino zimafunikiranso 20% ~ 60% tinthu tambiri tinthu 63um. Kuchita bwino kumakhudza kusungunuka kwa hydroxypropyl methl cellulose ether ether. Coarsder Mc nthawi zambiri amasungunuka ndikusungunuka mosavuta m'madzi osatseka, koma kufooka kwa chilengedwe kumakhala kocheperako ndipo sioyenera kugwiritsa ntchito mativa owuma. Mu matope owuma, MC imabalalitsidwa pakati pa ophatikizika, filler yabwino Pamene MC yasungunuka m'madzi, ndikovuta kupasulidwa pakubala. MC yokhala ndi mapidwe a Coarder Kusavulaza, komanso amachepetsa mphamvu ya matope. Matope owuma ngati owuma atamangidwa m'dera lalikulu, likuwonetsedwa kuti liwiro la matope lowuma limachepa kwambiri, ndipo kusokonekera kumachitika chifukwa chothira nthawi yosiyanasiyana. Kwa matope a mfuti ndi zomangamanga zamakina, chifukwa nthawi yosakanikirana ndi yofupikira, zofunikira zabwino ndizokwera.
Nthawi zambiri, mafakiti apamwamba, abwinobwino amadzisungira madzi. Komabe, mafayilo apamwamba ali, olemera kwambiri kwa MC ndi, ndipo molongosoka MC ichepa, yomwe imasokoneza mphamvu ndi matope omanga matope. Maonekedwe akuwoneka, zoonekeratu zotsatira zam'matambo, koma sizofanana ndi ubale. Matope apamwamba, nthawi yonyowa kwambiri idzakhala, nthawi yonse yomanga, ntchito ya zomata zomata komanso kutsatira kwambiri mpaka gawo lapansi. Koma sikothandiza kuwonjezera mphamvu yonyowa yonyowa. Ndiye kuti, pomanga, magwiridwe antchito a Droop sichodziwikiratu. Mosiyana ndi zimenezo, kusinthidwa kwa medi ya meya ya medi ya medi yapakati komanso kotsika kuli ndi luso labwino kwambiri pokonzanso mphamvu ya matope onyowa.
Kusunga kwamadzi kwa HPMC kumakhudzananso ndi kutentha komwe kumagwiritsidwa ntchito, ndipo madzi osungira madzi a methyl cellulose ethel ether amachepetsa ndi kukwera kwa kutentha. Koma mu kugwiritsa ntchito matope, matope ambiri owuma nthawi zambiri amakhala kutentha kwambiri (madigiri 40) pansi pa zomanga padzuwa m'chilimwe, omwe nthawi zambiri amathandizira kuchiritsa kwa simenti ndi kuuma kwa matope. Kutsika kwa kuchuluka kwa malire kwamadzi kumadzetsa kumverera kowonekeratu komwe kungakhale koyenera komanso kusokonekera kumakhudzidwa. Panthawi yotere, zimakhala zovuta kuti muchepetse mphamvu ya kutentha. Pankhaniyi, methyl hydrothyl cellulose eleurose exorcortive aganiziridwa kuti ndi kutsogolo kwa chitukuko cha technological. Ngakhale kukweza methyl hydroththyl cellulose Mlingo (chiilimwe cha chilimwe), zomangamanga ndi kuthetsa nkhawa sizingatheke kukwaniritsa zosowa zogwiritsira ntchito. MC kudzera mwathandizo ena mwapadera, monga kukonza kuchuluka kwa chikondwerero, kumapangitsa kuti madzi ake athe kugwiritsa ntchito kutentha kwambiri kuti ukhale wabwino kwambiri, kuti uzitha kugwira bwino ntchito.
General hpmc ali ndi kutentha kwa gel, kumatha kugawidwa m'mitundu 60, mitundu 65, mitundu 75. Kwa matope osakanikirana wamba okhala ndi mabizinesi amchere amtsinje anali bwino sankhani 75 hpmc yokhala ndi kutentha kwambiri kwa gel. Mlingo wa HPMC sikuyenera kukhala wamtengo kwambiri, wokwera kwambiri adzapangitsa madziwo kuti akuwonjezereka, komanso omata, mutakhala nthawi yayitali, amakhudza ntchito yomanga. Zogulitsa zosiyanasiyana za matope zimasankha ma visc coulct hpmc, osagwiritsa ntchito ma visct hotct hpmc. Chifukwa chake, ngakhale hydroxypropyl zinthu zopangidwa ndi zabwino, koma kugwiritsa ntchito zabwino zokhazokha, sankhani zoyenera za HPMC ndiye ntchito yayikulu yantchito yantchito. Pakadali pano pali ogulitsa kwambiri mu HPMC yomwe ili pachiwopsezo, mtunduwo ndi wosauka, labotale kuyenera kusankha mtundu wina wa cellulose, kuti musasirire kukhazikika kwa zinthu zotsika mtengo, osasilira otsika mtengo, amataya zotayika zosafunikira.
Post Nthawi: Feb-20-2025