Kodi mukudziwa za HyPromelweose?

Hydroxypylfelllulose (Dzina la Inni: HyPromellose) Ndiko kupanga polymer, ma viscoelastic, ma visaen nthawi zambiri amagwiritsidwa ntchito ngati mafuta mu ophthalmology, kapena ngati protom kapena yofinya mumwambo wamalonda, ndipo nthawi zambiri amapezeka mu malonda osiyanasiyana.

Monga chakudya chowonjezera, HyPromellose amatha kusewera maudindo otsatirawa: emulsifier, thiCerner, kuyimitsa wothandizira ndi cholowa m'malo mwa nyama ya nyama. Khodi yake (E-code) mu codex Allemerius ndi E464.

Mankhwala:

Chotsiriza cha hydroxypropyl methylcellulose ndi ufa woyera kapena utoto woyera woyamwa, ndipo kukula kwa tinthu kumadutsa mulungu wa 80-mesh. Chiwerengero cha methoxyl zokhudzana ndi hydroxypyl zomwe zatsirizidwa ndizosiyana, ndipo mamasukiwo ndi osiyana, motero amakhala osiyanasiyana mosiyanasiyana. Ili ndi mikhalidwe yosungunuka m'madzi ozizira komanso influble m'madzi otentha ofanana ndi methyl cellulose, ndipo kusungunuka kwake mu madokotala kumapitilira madzi. Itha kusungunuka mu methanol methanol ndi ethanol, ndipo amathanso kusungunuka mu hydrocarbons monga dichloro methane, trichlorororolhane, ndi orsopanol, ndi mowa wamaselo. Akasungunuka m'madzi, imaphatikizira mamolekyulu amadzi kuti apange colloid. Ndi khola kwa asidi ndi alkali, ndipo sakhudzidwa mu pH = 2 ~ 12. HyPromelfelose, ngakhale osachita mantha, amayaka komanso amachita zachiwawa ndi othandizira oxidi.

Makutu a zinthu za HPMC amawonjezeka ndi kuchuluka kwa ndende komanso kulemera kwa masentimita, ndipo matenthedwe ake akayamba kuchepa. Ikafika pamtunda winawake, mawilo akuwoneka modzidzimutsa ndi miyala imachitika. kutalika kwa. Njira yake yothetsera mchere imakhala yokhazikika kutentha, kupatula kuti imatha kunyozedwa ndi ma enzymes, ndipo mawonekedwe ake ambiri alibe kuwonongeka. Ili ndi katundu wapadera wa mafuta, mawonekedwe abwino opanga mafilimu komanso zochitika zapamwamba.

Kupanga:

Cellulose itathandizidwa ndi alkali, alkoxy anion yomwe imapangidwa ndi gulu la hydroxyl amatha kuwonjezera ma proude oxide kupanga hydroxpyl ethersese ether. Itha kufookanso ndi methyl chloride kupanga methy cellulose ether ether. Hydroxypropyll methylcellulose imapangidwa pamene zonse zomwe zimachitika zimachitika nthawi imodzi.

Kugwiritsa ntchito:

Kugwiritsa ntchito hydroxypropyl methylcellulose ndikofanana ndi kwa cellulose ina. Amagwiritsidwa ntchito makamaka ngati wobalalitsa, kuyimitsa, thiccur, emulsifier, okhazikika komanso omatira m'minda yosiyanasiyana. Ndipamwamba kuposa cellulose ina ya cellulose malinga ndi kusungunuka kwa kusungunuka, kupezeka, kuwonekeranso ndi enzyme.

Mu chakudya ndi mafakitale opangira mankhwala, imagwiritsidwa ntchito ngati zowonjezera. Amagwiritsidwa ntchito ngati chomatira, chitsitsi, chobalalitsa, chosinthika, kukhazikika ndi emulsifier. Ilibe poizoni, palibe phindu lazambiri, ndipo palibe kusintha kwamkati.

Kuphatikiza apo, HPMC ili ndi mapulogalamu mu statemerization stulymerization, ma petrochemicals, ma ceramic, zojambula, zokongola, zodzola, zopangira mapulogalamu osindikizira zithunzi.