Hydroxypypyl methylcellulose ndi gawo lopanda main-celluse exed kuchokera ku thonje loyeretsa kudzera mumitundu yoyengadwa m'njira zingapo. Ndi chinthu chopanda fungo, chosapatuka chopanda chopondera chomwe chimasungunuka m'madzi ndikupereka mawonekedwe omveka bwino kapena a ctambol colloidal yankhol. Ili ndi mawonekedwe a kukula, kusungidwa kwamadzi komanso kumanga kosavuta. Madzi am'madzi a hydroxypropyl hpmc ali wokhazikika mu HPMC imakhazikika mu hpm3.0-10.0, ndipo ikakhala yocheperako 10, mafayilo azikhala ochepetsedwa.
Ntchito yayikulu ya hydroxpyl meth
Zinthu monga kutentha ndi kuthamanga kwa mphepo zimakhudza kuchuluka kwa chinyezi, puti ndi zina, kotero m'masamba osiyanasiyana omwe amawonjezeredwanso. Mu zomanga zina, kuchuluka kwa madziwo kumatha kusinthidwa ndikukulitsa kuchuluka kwa HPMC yowonjezeredwa. Kusunga kwamadzi kwa hydroxypropyl methylcellulose hpmc pamtunda wapamwamba ndi chizindikiro chofunikira kusiyanitsa mtundu wa HPMC. Zabwino kwambiri hpmc zimatha kuthana ndi vuto la madzi osungira madzi otentha kwambiri. Mu nyengo zowuma ndi madera okhala ndi kutentha kwakukulu ndi kuthamanga kwa mphepo, ndikofunikira kugwiritsa ntchito HPMC yayikulu kwambiri kuti isungidwe magwiridwe antchito a slurry.
Chifukwa chake, mu kutentha kwambiri chilimwe, kuti mukwaniritse madzi a HPMC, ndikofunikira kuwonjezera kuchuluka kwa HPMC yokwanira malinga ndi formula, apo ayi pamakhala zovuta zamphamvu monga mphamvu zosakwanira, kuchepetsedwa , kung'ung'udza ndi chitsamba choyambitsidwa chifukwa choyanika kwambiri, ndipo nthawi yomweyonso zinachulukitsa zovuta zomanga ogwira ntchito. Pamene kutentha madontho, kuchuluka kwa hpmc kuwonjezeredwa kumatha kuchepetsedwa pang'onopang'ono, ndipo madzi omwewo akwaniritsidwe.
Popanga zopangira, hydroxypropyl methylcellulose ndi zowonjezera. Pambuyo powonjezera hpmc, zinthu zotsatirazi zitha kukhala bwino:
1. Kusungidwa kwamadzi: Kupititsa patsogolo madzi, kusintha matope a simenti, kuwuma kosakwanira kwamphamvu kwambiri kunapangitsa kuuma kosayenera, kusokonekera ndi zochitika zina.
2. Kumatira: Chifukwa cha matope osinthika, amatha kulumikizana bwino komanso kutsatira.
3.
4. Kugwira ntchito: Onjezani matope a matope, kukonza mafakitale a zomangamanga ndikusintha ntchitoyi.
Post Nthawi: Apr-12-2023