Hydroxypypyl methylcellulose (hpmc) ndi polymer yosiyanasiyana yomwe imagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikizapo zamankhwala osiyanasiyana, zodzoladzola, chakudya, ndi zomanga. Kutha kwake kupanga ma gels, mafilimu, ndi mayankho kumapangitsa kuti ikhale yofunika kwambiri pamapulogalamu ambiri. Hydration wa HPMC ndi gawo lofunikira mu njira zambiri, chifukwa zimapangitsa polymer kuti awonetsetse zomwe mukufuna.
1. Kuzindikira HPMC:
HPMC imachokera ku cellulose ndipo imapangidwa ndi kuchiritsa cellulose ndi propylene oxide ndi methyl chloride. Amadziwika ndi madzi ake - kusungunuka ndi kuthekera kopanga ma gel osawonekera, osinthika. Mlingo wa hydroxypyll ndi methoxyl zogwirizira zimakhudza malo, kuphatikizapo kususuka, kuwoneka, ndi mikangano.
2. Kufunikira kwa hydration:
Ma hydration ndikofunikira kuti mutsegule magwiridwe antchito a HPMC. HPMC ikamakhala hydration, imatenga madzi ndi kutumphuka, zomwe zimayambitsa kusintha kwa mawonekedwe a viscous kapena gel osakira ndi zinthu. Mkhalidwe wamagetsi uwu umathandizira hpmc kuti achite ntchito zake, monga kukula, kuphatikiza, kupanga mafilimu, komanso kulimbikitsa mankhwala osokoneza bongo.
3. Njira za hydration:
Pali njira zingapo za hpmc hpmc, kutengera ntchito ndi zomwe mukufuna:
a. Kubala kwa madzi ozizira:
Njirayi imaphatikizapo kufalitsa ufa wa HPMC m'madzi ozizira pomwe akulimbikitsa pang'ono pang'ono.
Kubalazidwa kwamadzi ozizira kumayesedwa kuti muchepetse kutsekera ma yunifolomu.
Pambuyo pakubala, yankho limaloledwa kukhala ndi hydrate zopitilira muyeso kuti mukwaniritse mafayilo omwe mukufuna.
b. Kubala Madzi Otentha:
Munjira iyi, hpmc ufa wobalalitsidwa m'madzi otentha, nthawi zambiri kutentha pamwamba pa 80 ° C.
Madzi otentha amathandizira mwachangu komanso kusungunuka kwa HPMC, zomwe zimapangitsa kuti muthe.
Chisamaliro chiyenera kutengedwa kuti mupewe kutentha kwambiri, chomwe chimatha kusokoneza HPMC kapena kuyambitsa mapangidwe.
c. Kulonjera:
Mapulogalamu ena atha kuphatikiza kusintha kwa HPMC ndi othandizira a alkaline ngati sodium hydroxide kapena potaziyamu hydroxide.
Kuphatikiza kwa PH of the Soth, komwe kungapangitse mawonekedwe ndi khwalalo la hpmc.
d. Kusinthanitsa:
HPMC imathanso kuimitsidwa ndi kusinthana kwa zosungunulira, komwe kumabalalitsidwa m'madzi olakwika ngati ethanol kapena methal kenako kusinthana ndi madzi.
Kusinthasintha kusinthasintha kumatha kukhala kothandiza pakugwiritsa ntchito molondola kuwongolera kwa hydration ndi mafayilo.
e. Pre-hydration:
Pre-hydration imaphatikizapo kutsegula HPMC m'madzi kapena solven musanaphatikize izi kukhala mapangidwe.
Njira imeneyi imatsimikizira kugwiritsa ntchito mankhwalawa bwino ndipo zitha kukhala zopindulitsa pakukwaniritsa zotsatira zogwirizana, makamaka pamapangidwe ovuta.
4. Zinthu zomwe zikukhudza hydration:
Zinthu zingapo zimapangitsa hydration ya hpmc:
a. Kukula kwa tinthu: Mafuta a HPMC okhala ndi HPMC bwino mosavuta kuposa tinthu tating'onoting'ono chifukwa cha malo ochulukirapo.
b. Kutentha kwambiri nthawi zambiri kumathandizira hydration koma kumathanso kusintha mafayilo komanso chikhalidwe cha HPMC.
c. PH: Ph wa sing'anga ya hydration imatha kukhudza mkhalidwe wa HPMC ndipo chifukwa chake ma hydration kinetics ndi zopanda pake.
d. Kusakaniza: Kusakanikirana koyenera kapena kusokonekera kofunikira kuti yunifolomu yunifolomu ndi kufalikira kwa ma hpmc tinthu tambiri.
e. Kuzindikira: Kukhazikika kwa HPMC mu Hydration sing'anga kumathandizira mamasukidwe, gel olimba, ndi zina zothetsera njira kapena gel osakaniza.
5. Ntchito:
Hydrated hpmc imapeza ntchito zosiyanasiyana pamakampani osiyanasiyana:
a. Mapangidwe a mankhwala: Mu ma piritsi, olamulidwa, omasulidwa, ma ophthalmic njira, ndi kuyimidwe.
b. Zakudya Zogulitsa: Monga Thicker, okhazikika, kapena wothandizira makanema pamitu, zovala, zinthu zamkaka, komanso confectionery.
c. Zodzikongoletsera: mu zonona, zotupa, ma gels, ndi mitundu ina ya kusintha kwa ma visko ndi emulsization.
d. Zipangizo zomangira: M'mitundu yomanga: Zochita zomata zame ya sile, ndipo zimapangitsa kuti zitheke, kusungidwa kwamadzi, komanso kutsatira.
6. Kuwongolera kwapamwamba:
Kugwiritsa ntchito hydration hpmc ndikofunikira pakuchita malonda ndi kusasinthika. Njira Zowongolera Zowongolera Zingaphatikizeponso:
a. Kusanthula kwa tinthu: kuwonetsetsa kufanana kwa tinthu tating'onoting'ono toyambitsa tinthu tambiri kuti tipeze hydration kinetics.
b. Mlingo wa IscCon: Kuwunikira Masulidwe a Visction pakugwiritsa ntchito kusasinthika komwe mukufuna.
c. Kuwunika kwa PH: Kuwongolera pH ya hydration sing'anga kuti mukonze hydration ndikupewa kuwonongeka.
d. Kuyesedwa kwa ma microscopic: Kuyendera kwamaonekedwe kwa zitsanzo za hydrated pa microscope kuti ayeseke ndi tinthu tating'onoting'ono ndi umphumphu.
7. Kumaliza:
Ma hydration ndi njira yofunika kwambiri pakukakamiza katundu wa HPMC pa ntchito zosiyanasiyana. Kumvetsetsa njira, zinthu zowongolera zokhudzana ndi mankhwala olimbitsa thupi ndikofunikira kuti mutseke magwiridwe antchito ndikuwonetsetsa kusasinthika. Pogwiritsa ntchito mokakamiza hydration wa hpmc, ofufuza ndi opanga mapulogalamu amatha kutsegula zomwe zingatheke ku mafakitale osiyanasiyana, chatsopano chomwe chikuyendetsa ndi chitukuko chazogulitsa.
Post Nthawi: Mar-04-2024