HPMC (hydroxypropyl methylcellulose) ndi zinthu zomwe zimagwiritsidwa ntchito polima polima, zomwe zimagwiritsidwa ntchito kwambiri pazamankhwala, chakudya, zomangamanga, chisamaliro chamunthu ndi zina.
1. Zomangamanga
The maselo kapangidwe HPMC ali mkulu mamasukidwe akayendedwe ndi zabwino rheological katundu. Pali magulu angapo a hydroxyl (-OH) pa unyolo wake wa mamolekyu, omwe amatha kupanga zomangira za haidrojeni ndi mamolekyu amadzi, kotero kuti HPMC imatha kusungunuka bwino m'madzi kuti ipange njira yotalikirapo kwambiri ya colloidal. Katunduyu amalola HPMC kuti ikhale yolimba mu chilinganizo ndikuwonjezera kukhuthala kwazinthuzo.
2. Kunenepa kwambiri
Kuchulukana kwamphamvu kwa HPMC kumatheka chifukwa cha kuyanjana kwa unyolo wa maselo ake. Pamene HPMC ndi kusungunuka m'madzi, maselo unyolo adzakhala entangle wina ndi mzake kupanga dongosolo maukonde, potero kuwonjezera mamasukidwe akayendedwe a yankho. Kukula kumeneku kumawonekera makamaka muzinthu zamadzimadzi (monga zakumwa, zokometsera) ndi phala (monga mafuta odzola, zinthu zosamalira khungu), zomwe zimatha kusintha kukoma ndikugwiritsa ntchito chidziwitso cha mankhwalawa.
3. Kukhazikika kokhazikika
Powonjezera mamasukidwe akayendedwe, HPMC imathanso kukonza kukhazikika kwazinthuzo. Mu suspensions ambiri ndi emulsions, kuwonjezeka mamasukidwe akayendedwe kungalepheretse sedimentation ndi gawo kulekana kwa particles olimba, potero kukhalabe yunifolomu ndi maonekedwe a mankhwala. Mwachitsanzo, mu zokutira ndi zomatira, kugwiritsa ntchito HPMC kumatha kupititsa patsogolo kukhazikika kwazinthu komanso kupewa kupezeka kwa sedimentation ndi stratification.
4. Kutulutsidwa koyendetsedwa bwino
M'munda wamankhwala, HPMC nthawi zambiri imagwiritsidwa ntchito ngati gawo la machitidwe omasulidwa oyendetsedwa ndi mankhwala. Mwa kusintha ndende ndi kulemera kwa maselo a HPMC, kumasulidwa kosalekeza ndi kolamuliridwa kwa mankhwala kungapezeke. The kutupa katundu wa HPMC m'madzi kulola kumasulidwa mlingo wa mankhwala mu thupi kulamuliridwa, potero kuwongolera efficacy wa mankhwala ndi kuchepetsa mavuto.
5. Kusinthasintha kwakukulu
HPMC imatha kukhalabe ndi zinthu zokhuthala bwino m'malo okhala ndi ma pH osiyanasiyana komanso mphamvu za ionic, zomwe zimapangitsa kuti zizigwira ntchito m'mapangidwe ambiri ovuta. Kaya ndi acidic, alkaline kapena osalowerera ndale, HPMC imatha kupereka kukhuthala kokhazikika ndikuwongolera magwiridwe antchito azinthu.
6. Low ndende mogwira mtima
Poyerekeza ndi zokhuthala zina, HPMC imatha kuonjezera mamasukidwe akayendedwe otsika, kuchepetsa ndalama zopangira. Panthawi imodzimodziyo, chisokonezo chochepachi chikhoza kuchepetsa kukhudzidwa kwa zinthu zina ndikusunga kusinthasintha ndi kukhazikika kwa ndondomekoyi.
7. Zinthu zomwe zimakhudza
The thickening zotsatira za HPMC amakhudzidwa ndi zinthu zambiri, kuphatikizapo mtundu wa HPMC (monga osiyana molekyulu kulemera, hydroxyl m'malo), yankho kutentha, ndende ion, etc. Mu ntchito yeniyeni, m'pofunika kupanga lolingana zosintha malinga ndi zosowa. za mankhwala kuti mukwaniritse zotsatira zabwino kwambiri za viscosity.
8. Zitsanzo zogwiritsira ntchito
M'makampani azakudya, HPMC nthawi zambiri imagwiritsidwa ntchito kupanga zakudya zamafuta ochepa ndi mkaka kuti zithandizire kukonza kukoma ndi kusasinthasintha. M'makampani omanga, HPMC imagwiritsidwa ntchito pazinthu zopangira simenti kuti zithandizire kumamatira komanso kugwira ntchito. M'munda wamankhwala, HPMC imagwiritsidwa ntchito kwambiri m'mapiritsi, makapisozi ndi mitundu yosiyanasiyana yamankhwala kuti apititse patsogolo kukhazikika kwawo komanso kukhazikika.
Udindo wa HPMC pakuwongolera kukhuthala kwazinthu sizinganyalanyazidwe. Maonekedwe ake apadera akuthupi ndi mankhwala amapangitsa kuti ikhale yolimba komanso yokhazikika m'mafakitale ambiri. Posankha ndikugwiritsa ntchito HPMC, ndikofunikira kupanga milingo yoyenera ndikugwiritsa ntchito molingana ndi mawonekedwe ndi zosowa zazinthu zinazake kuti mupereke kusewera kwathunthu ku zabwino zake.
Nthawi yotumiza: Oct-21-2024