Hydroxypropylmethylcellulose (HPMC) ndi polima opangidwa omwe amagwiritsidwa ntchito m'mafakitale osiyanasiyana kuphatikiza mankhwala, zodzoladzola ndi zomangamanga. Ndiwopanda poizoni komanso wosawonongeka wokhala ndi zinthu zabwino kwambiri zosungira madzi. Komabe, muzinthu zina, HPMC ikhoza kuwonetsa kusungirako madzi kwambiri, zomwe zingakhale zovuta. M'nkhaniyi, tikambirana zifukwa zinayi zazikulu zomwe HPMC imasungira madzi ndi njira zina zothetsera vutoli.
1. Kukula kwa tinthu tating'onoting'ono ndi kuchuluka kwa m'malo
Chimodzi mwazinthu zovuta kwambiri zomwe zimakhudza kusungidwa kwa madzi kwa HPMC ndi kukula kwake ndi kuchuluka kwa kusintha kwake (DS). Pali magulu osiyanasiyana a HPMC, iliyonse ili ndi DS yeniyeni ndi kukula kwa tinthu. Nthawi zambiri, kuchuluka kwa kusintha kwa HPMC kumapangitsa kuti madzi asungidwe. Komabe, izi zimabweretsanso kukhuthala kwapamwamba, komwe kumakhudza kuthekera kwazinthu zina.
Momwemonso, kukula kwa tinthu kumakhudzanso kusunga madzi kwa HPMC. Tinthu tating'onoting'ono HPMC tidzakhala ndi malo apamwamba omwe amatha kusunga madzi ambiri, zomwe zimapangitsa kuti madzi azikhala ochuluka. Komano, tinthu tating'onoting'ono ta HPMC timalola kubalalitsidwa bwino komanso kusakanikirana, zomwe zimapangitsa kuti pakhale bata popanda kusungirako madzi kwakukulu.
Yankho lotheka: Kusankha kalasi yoyenera ya HPMC yokhala ndi digiri yotsika yolowa m'malo ndi kukula kwa tinthu tating'onoting'ono kumatha kuchepetsa kusungirako madzi popanda kusokoneza magwiridwe antchito.
2. Mikhalidwe ya chilengedwe
Zinthu zachilengedwe monga kutentha ndi chinyezi zingakhudzenso kwambiri kusunga madzi kwa HPMC. HPMC imatha kuyamwa ndikusunga chinyezi kuchokera kumadera ozungulira, zomwe zingayambitse kusungirako madzi kwambiri kapena kuyanika pang'onopang'ono. Kutentha kwambiri kumathandizira kuyamwa ndi kusunga chinyezi, pamene kutentha kochepa kumachepetsa kuyanika, kumapangitsa kuti chinyezi chisungike. Momwemonso, malo okhala ndi chinyezi chambiri angayambitse kusungika kwamadzi mopitilira muyeso komanso kukonzanso kwa HPMC.
Njira yothetsera: Kuwongolera chilengedwe momwe HPMC imagwiritsidwa ntchito kumachepetsa kwambiri kusunga madzi. Mwachitsanzo, kugwiritsa ntchito dehumidifier kapena air conditioner kungachepetse chinyezi chozungulira, pamene kugwiritsa ntchito fani kapena chotenthetsera kungathe kuonjezera kutuluka kwa mpweya ndikuchepetsa nthawi yomwe HPMC imafunika kuti iume.
3. Kusakaniza kosakaniza
Kusakaniza ndi kukonza kwa HPMC kungakhudzenso katundu wake wosungira madzi. Momwe HPMC imasakanizidwa ndikukonzedwa imatha kudziwa mphamvu yake yosunga madzi ndi kuchuluka kwa hydration. Kusasakaniza kokwanira kwa HPMC kungayambitse kugwa kapena kuyika, zomwe zimakhudza mphamvu yosunga madzi. Momwemonso, kusakaniza mopitirira muyeso kapena kupitirira-kukonza kungayambitse kuchepa kwa tinthu tating'ono, zomwe zimawonjezera kusunga madzi.
Zomwe Zingatheke: Kusakaniza koyenera ndi kukonza kungachepetse kwambiri kusunga madzi. HPMC iyenera kusakanizidwa kapena kusakanizidwa bwino kuti iwonetsetse kugawidwa kofanana ndi kuteteza mapangidwe a zotupa kapena zotupa. Kusakaniza mochulukira kuyenera kupewedwa ndikuwongolera zinthu mosamala.
4. Fomula
Pomaliza, kupangidwa kwa HPMC kumakhudzanso malo ake osungira madzi. HPMC nthawi zambiri ntchito limodzi ndi zina zowonjezera, ndi ngakhale zina izi zimakhudza kasungidwe madzi a HPMC. Mwachitsanzo, ena thickeners kapena surfactants akhoza kucheza ndi HPMC ndi kuonjezera mphamvu yake yogwira madzi. Kumbali inayi, mchere kapena ma asidi ena achilengedwe amatha kuchepetsa mphamvu yosunga madzi poletsa kupanga ma hydrogen bond.
Njira zomwe zingatheke: Kukonzekera mosamala ndi kusankha zowonjezera kungachepetse kwambiri kusunga madzi. Kugwirizana pakati pa HPMC ndi zowonjezera zina ziyenera kuganiziridwa mosamalitsa ndikuwunika momwe zimakhudzira kasungidwe kamadzi. Kusankha zowonjezera zomwe sizimakhudza kwambiri kusunga madzi kungakhale njira yabwino yochepetsera kusunga madzi.
Pomaliza
Pomaliza, HPMC yakhala polima yofunikira m'mafakitale osiyanasiyana chifukwa cha zinthu zake zabwino zosungira madzi. Komabe, pazinthu zina, kusunga madzi ochulukirapo kumatha kukhala kovuta. Pomvetsetsa zinthu zomwe zimakhudza kusunga madzi ndikugwiritsa ntchito njira zoyenera, kusunga madzi kwa HPMC kumatha kuchepetsedwa kwambiri popanda kusokoneza ntchito.
Nthawi yotumiza: Jul-17-2023