Hydroxypropyll methylcellulose (hpmc) ndi polymer yosiyanasiyana ndi ma hydrophobic ndi hydrophilic katundu, ndikupangitsa kuti ikhale yapadera pamakampani osiyanasiyana. Kuti mumvetsetse Hydrophobicity ndi hydrophilicity ya HPMC, tifunika kuphunzira kapangidwe kake, katundu ndi ntchito mozama.
Kapangidwe ka hydroxypropyl methylcelulose:
HPMC imachokera ku cellulose, polymer yachilengedwe imapezeka mu khoma la cell. Kusintha kwa cellulose kumaphatikizapo kuyambitsa kwa hydroxpyl ndi magulu a methyl mu kilodi yam'madzi. Kusintha kumeneku kumasintha katundu wa polymer, kupereka njira zina zomwe zimapindulitsa pamapulogalamu osiyanasiyana.
Hydrophilicity wa HPMC:
Hydroxy:
HPMC ili ndi magulu a hydroxypyl ndipo ndi hydrophilic. Magulu awa hydroxyl ali ndi ubale wokwera mamolekyulu amadzi chifukwa cholumikizana hydrogen.
Gulu la hydroxypyl limatha kupanga ma hydrogen ma bondo okhala ndi mamolekyulu amadzi, kupanga ma hpmc kusungunuka m'madzi pamlingo wina.
Methyl:
Pomwe gulu la methyl limathandizira kuti mu hydrophobicity wa molekyulu, sizingagonjetse hydrocphopyl gulu la hydroypyl.
Gulu la methyl silopanda polar, koma kukhalapo kwa gulu la hydroxypyl mgulu la hydrophilic.
Hydrophobicity ya HPMC:
Methyl:
Magulu a methyl ku HPMC DZINA KUTI AKHALE MABWINO BWINO.
Ngakhale sikuti ndi hydrophobic monga opanga ma policers kwathunthu, kukhalapo kwa magulu a methyl kumachepetsa hydrophilicity ya HPMC.
Kanema wopanga katundu:
HPMC imadziwika ndi mawonekedwe ake omwe amapanga mafilimu ndipo nthawi zambiri amagwiritsidwa ntchito pakugwiritsa ntchito mankhwala komanso zodzikongoletsera. Hydrophobicity imathandizira kupanga filimu yoteteza.
Zogwirizana ndi zinthu zopanda pake:
Muzosankha zina, hpmc amatha kulumikizana ndi zinthu zosakhala ndi polar chifukwa cha kuchuluka kwake kwa hydrophobicity. Katunduyu ndiofunikira kuti mutumikire mankhwala osokoneza bongo m'makampani opanga mankhwala.
Ntchito za HPMC:
Mankhwala:
HPMC imagwiritsidwa ntchito kwambiri pamitundu yopanga mankhwala ngati chofunda, kanema wakale, ndi uphedwe. Mphamvu yake yopanga mafayilo imathandizira kumasulidwa kwa mankhwala.
Amagwiritsidwa ntchito mu mitundu yolimba ya mkamwa monga mapiritsi ndi makapisozi.
Makampani omanga:
Mu gawo lomanga, HPMC imagwiritsidwa ntchito pazogulitsa za simenti kuti zithandizire kugwirira ntchito, kusungidwa kwamadzi ndi kutsatira.
Hydrophilicity imathandizira kukonza madzi, pomwe hydrophobicity imathandizira kukonza.
Makampani Ogulitsa Chakudya:
HPMC imagwiritsidwa ntchito ngati thickener ndi gelling wothandizila mankhwala. Chikhalidwe chake cha hydrophilic chimathandizira kupanga ma gels okhazikika ndikuwongolera mafayilo a chakudya.
zodzikongoletsera:
Popanga zodzikongoletsera, hpmc imagwiritsidwa ntchito pazogulitsa monga zowonera ndi zotupa chifukwa cha mawonekedwe ake ndi makulidwe.
Hydrophility imatsimikizira zabwino za khungu.
Pomaliza:
HPMC ndi polymer yomwe ili yonse hydrophilic ndi hydrophobic. Kuthekera pakati pa hydroxypyl ndi magulu a methyl pamapangidwe ake kumawapatsa mphamvu yokhudza kusiyanasiyana,, kulola kuti ikhale ndi mapulogalamu osiyanasiyana. Kumvetsetsa zinthu izi ndizofunikira kwambiri kuti zigwirizane ndi kugwiritsa ntchito mafakitale osiyanasiyana, komwe kuthekera kwa HPMC kukakhala ndi zinthu zam'madzi ndi ma sapor kumagwiritsidwa ntchito pazifukwa zosiyanasiyana.
Post Nthawi: Dis-15-2023