Hydroxypropylmethylcellulose (HPMC) ndi polima yopangidwa ndi kusintha maselo achilengedwe. Imagwiritsidwa ntchito m'mafakitale osiyanasiyana monga mankhwala, chakudya, zodzoladzola, ndi zomangamanga. HPMC ndi ether ya cellulose yomwe siionic yomwe imasungunuka mosavuta m'madzi ndipo imatha kupanga yankho lowonekera, lokhuthala lomwe limakhalabe lokhazikika pa pH yochuluka.
Makhalidwe a HPMC ndi awa:
1. Kuchuluka kwa madzi omwe amasunga: HPMC imatha kuyamwa madzi ndikusunga m'malo mwake, zomwe zimapangitsa kuti ikhale yothandiza ngati chokhuthala, chosakaniza, komanso chokhazikika m'njira zambiri.
2. Makhalidwe abwino opangira filimu: HPMC imatha kupanga mafilimu owonekera bwino okhala ndi mphamvu yabwino yamakina. Izi zimathandiza kuti igwiritsidwe ntchito popanga makapisozi, zokutira ndi zinthu zina.
3. Kugwira ntchito kwambiri pamwamba: HPMC ili ndi mphamvu zogwira ntchito pamwamba, zomwe zimapangitsa kuti igwiritsidwe ntchito ngati chonyowetsa komanso chosungunula madzi.
4. Kukhazikika kwabwino kwa kutentha: HPMC ndi yokhazikika kutentha kwambiri ndipo ingagwiritsidwe ntchito pa ntchito zomwe zimafuna magwiridwe antchito awa.
5. Kumamatira bwino pamalo osiyanasiyana: HPMC imatha kumamatira pamalo ambiri, zomwe zimapangitsa kuti ikhale yothandiza popanga zomatira ndi zokutira.
Kugwiritsa ntchito HPMC m'mafakitale osiyanasiyana:
1. Mankhwala: HPMC imagwiritsidwa ntchito kwambiri popanga mankhwala ngati chomangira, chochotsa poizoni, komanso chowongolera kukhuthala kwa thupi. Imapezeka m'mapiritsi, makapisozi ndi mankhwala amadzimadzi.
2. Chakudya: HPMC imagwiritsidwa ntchito ngati chokhuthala, chokhazikika komanso chosakaniza mu chakudya. Ingagwiritsidwe ntchito mu zinthu monga ayisikilimu, yogati ndi zosakaniza za saladi.
3. Zodzoladzola: HPMC imagwiritsidwa ntchito kwambiri mu zodzoladzola monga chokhuthala, chosakaniza, komanso chopangira filimu. Ingagwiritsidwe ntchito mu zinthu monga mafuta odzola, mafuta odzola ndi shampu.
4. Kapangidwe: HPMC ndi chinthu chofunikira kwambiri pa zipangizo zambiri zomangira monga zomatira za matailosi, ma plaster okhala ndi simenti ndi ma mortar. Imagwira ntchito ngati chosungira madzi, imathandizira kugwira ntchito bwino, komanso imapereka kukanikiza bwino komanso kuwongolera kufupika kwa zinthu.
Chiŵerengero cha ma reference a HPMC mu makampani:
1. Kusunga madzi: Kuchuluka kwa madzi a HPMC ndi chinthu chofunikira chomwe chimatsimikizira kugwira ntchito kwake ngati chokhuthala komanso chomatira. Malowa ali ndi kuchuluka kwa 80-100%.
2. Kukhuthala: Kukhuthala ndi chinthu chofunikira kwambiri posankha HPMC pa ntchito zosiyanasiyana. Ma reference ratios a mafakitale a kukhuthala kwa mphamvu amasiyana kuyambira 5,000 mpaka 150,000 mPa.s.
3. Kuchuluka kwa gulu la Methoxyl: Kuchuluka kwa gulu la methoxyl mu HPMC kumakhudza kusungunuka kwake, kukhuthala kwake, ndi kupezeka kwake. Chiŵerengero cha kuchuluka kwa methoxy m'makampani chili pakati pa 19% ndi 30%.
4. Kuchuluka kwa hydroxypropyl: Kuchuluka kwa hydroxypropyl kumakhudza kusungunuka ndi kukhuthala kwa HPMC. Chiŵerengero cha mafakitale cha kuchuluka kwa hydroxypropyl chili pakati pa 4% ndi 12%.
HPMC ndi polima yogwiritsidwa ntchito m'njira zosiyanasiyana ndipo imagwiritsa ntchito mafakitale osiyanasiyana. Makhalidwe ake apadera amawapangitsa kukhala oyenera kugwiritsidwa ntchito mu mankhwala, chakudya, zodzoladzola ndi zomangamanga. Ma reference ratios a mafakitale a magawo osiyanasiyana amathandiza kusankha giredi yoyenera ya HPMC pa ntchito inayake.
Nthawi yotumizira: Sep-14-2023