Hydroxypypyl methylcellulose (hpmc) ndi mankhwala osokoneza bongo omwe ambiri amagwiritsidwa ntchito m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera a mankhwala ndi katundu.
1. Mankhwala Osiyanasiyana:
a. Cellulose Bowbone:
HPMC ndi cellulose yochokera ku cellulose, zomwe zikutanthauza kuti zimachokera ku cellulose, polysaczacdide wachilengedwe wopezeka mu makhola a cell. Ma cellulose amakhala ndi magawo a β-d-glucose olumikizidwa ndi β (1 → 4) zomangira.
b. Cholowa:
Ku HPMC, hydroxyl (-o) kusokonekera kwa ma cellulose am'matumbo alowetsedwa ndi methyl ndi hydroxypyl magulu. Izi zimachitika kudzera mu chizolowezi. Makina olowa m'malo (DS) amatanthauza chiwerengero cha ma hydroxyl omwe adalowa mu gawo la glucose mu cellulose unyolo. Magulu a DS a Methyl ndi hydroxypyl magulu ndi osiyana, omwe amakhudza momwe amagwirira ntchito HPMC.
2. Kaphatikizidwe:
a. Kusintha:
HPMC imapangidwa kudzera mu kufufuza kwa cellulose ndi ma propylene oxide ndi methyl chloride. Njirayi imaphatikizapo kuchita ma cellulose ndi ma propel oxide kuti ayambitse magulu a hydroxypyl kenako ndi methyl chloride kuti iyambitse magulu a meya.
b. Kuchuluka kwa kuwongolera kwina:
DS ya HPMC imatha kulamulidwa ndi kusintha komwe zinthu monga kutentha monga kutentha, nthawi yakale, komanso kuwerengera.
3. Magwiridwe:
a. Kusungunuka:
HPMC imasungunuka m'madzi ndi ena okhazikika, monga methanol ndi ethanol. Komabe, kusungunuka kwake kumatsika ndi kulemera kwa maselo ndi kuchuluka kwa zolowa m'malo mwake.
b. Mapangidwe a makanema:
HPMC imapanga filimu yowoneka bwino, yosinthika mukasungunuka m'madzi. Makanema awa ali ndi mphamvu zabwino komanso zotchinga.
C. Ma Iscton:
Mayankho a HPMC amawonetsa machitidwe a pseudoplactic, kutanthauza kuti ma viscy awo amachepetsa ndikuwonjezeka. Makutu a HPMC mayankho a HPMC amatengera zinthu monga kuphatikizira, kulemera kwa matope, ndi kuchuluka kwa zolowa m'malo mwake.
d. Kusunga kwamadzi:
Chimodzi mwazinthu zofunikira za HPMC ndi kuthekera kwake kusunga madzi. Katunduyu ndi wofunikira kwambiri pamapulogalamu osiyanasiyana monga zida zomangira, komwe hpmc imagwiritsidwa ntchito ngati thickener ndi wothandizira madzi.
e. Kutsatira:
HPMC imagwiritsidwa ntchito ngati zomatira m'mafakitale osiyanasiyana chifukwa cha kuthekera kwake kupanga zomangira zamphamvu m'malo osiyanasiyana.
4. Ntchito:
a. Makampani opanga mankhwala:
Mu mankhwala opangira mankhwala, hpmc imagwiritsidwa ntchito ngati chofunda, ojambula filimuyo yolumikizira, olamulidwa omasulidwa, ndi mawonekedwe osintha mafilimu.
b. Makampani omanga:
HPMC imawonjezeredwa ndi mativa a simenti, ma gypsum omata a gypsum ndi matanthwe osinthana, kusungidwa kwamadzi ndi kutsatira.
C. Makampani ogulitsa zakudya:
Pakugulitsa zakudya, hpmc imagwiritsidwa ntchito ngati thicker, ribilifarite ndi emulsifier mu zinthu monga msuzi, zovala ndi ayisikilimu.
d. Zogulitsa Zaumwini:
HPMC imagwiritsidwa ntchito ngati thickener, emulsifier ndi wothandizira makanema pazinthu zosamalira payokha monga shampoos, zodzola ndi zowawa.
e. Utoto ndi zokutira:
Pautoto ndi zokutira, hpmc imagwiritsidwa ntchito kukonza zobalalitsa kwa pigmement, ulamuliro wa mafalo ndi kusungidwa kwamadzi.
Hydroxypropylmethylcellulose (hpmc) ndi njira yosiyanasiyana yokhala ndi mapulogalamu osiyanasiyana pamakampani osiyanasiyana. Mankhwala ake apadera amapangidwa, kapangidwe kake kake kamapangitsa kuti ikhale yofunika kwambiri mu mankhwala opangira mankhwala, zomangira, zakudya, zopangidwa ndi utoto / zokutira. Kumvetsetsa komwe kuli HPMC kumalola kugwiritsa ntchito makina m'minda yosiyanasiyana, yomwe imathandizira kugwiritsa ntchito komanso kufunikira kwa njira zamakono.
Post Nthawi: Feb-22-2024