Hydroxypropyl methylcellulose (hpmc)ndi cellulose yopanda ionic ey Ili ndi zinthu zambiri zabwino kwambiri, zomwe zimapangitsa kuti zizichita bwino pamapulogalamu osiyanasiyana.
1. Maonekedwe ndi kususuka
HPMC nthawi zambiri imakhala yoyera kapena yoyera, yoyera, yopanda zonunkhira komanso yopanda poizoni. Itha kusungunuka m'madzi ozizira ndi osinthika ena (monga osakanizira ena monga ethanol / madzi ndi acetoble / madzi), koma wopanda nzeru ku ethanol, etherm. Chifukwa cha chilengedwe chake chosagwirizana, sichimachitika ma electrotic mu madzi am'madzi ndipo sadzakhudzidwa kwambiri ndi mtengo wa pH.
2. Makutu ndi chiwerewere
Njira yothetsera HPMC imakula bwino komanso thixotropy. Mitundu Yosiyanasiyana ya Evancence®hpm ali ndi ma viscosies osiyanasiyana, ndipo mtundu wamba ndi 5 mpaka 100000 mamita (2% am'madzi 20%, 20 ° C). Njira yake ikuwonetsa pseoplascity, ndiye kuti, kumeta pang'ono kugwedezeka, ndipo ndikoyenera kuti pakhale zochitika monga zophatikizira monga zophatikizira, zomata, zomata, ndi zina.
3. Miyendo yamatenthedwe
HPMC ikamatenthedwa m'madzi, mawonekedwe a yankho amachepa ndipo gel amapangidwa pamtunda wina. Pambuyo pozizira, dziko la gel la gel limabwereranso ku yankho. Mitundu Yosiyanasiyana ya HPMC imakhala ndi kutentha kosiyanasiyana kwa gel, nthawi zambiri pakati pa 50 ndi 75 ° C. Katunduyu ndi wofunikira makamaka pantchito monga kumanga matope ndi mapisozi.
4. Ntchito
Chifukwa ma molekyulu a HPMC ali ndi magulu a hydrophilic ndi ma hydrophobic magulu a hydrophobic, amawonetsa zochitika zina zapamwamba ndipo amatha kusewera kwambiri, kubalalitsa gawo lokhazikika. Mwachitsanzo, zofunda ndi emulsions, hpmc imatha kusintha kukhazikika kwa emulsion ndikupewa kukhazikika kwa tinthu tating'onoting'ono.
5. Hygroscopicity
HPMC ili ndi hygrosopicity ina ndipo imatha kuyamwa chinyezi m'malo chinyezi. Chifukwa chake, m'mabuku ena, chidwi chiyenera kulipiridwa kuti akwaniritse kusindikizidwa kuti mupewe chinyezi komanso chiwombankhanga.
6. Katundu wopanga filimu
HPMC imatha kupanga filimu yolimba komanso yowoneka bwino, yomwe imagwiritsidwa ntchito kwambiri mu chakudya, mankhwala (monga othandizira) ndi zokutira. Mwachitsanzo.
7.
HPMC siakhala poizoni komanso yopanda vuto, ndipo imatha kukakamizidwa ndi thupi la munthu, chifukwa chake imagwiritsidwa ntchito kwambiri m'minda ndi chakudya. Monga zomata zam'madzi zophatikizira, nthawi zambiri zimagwiritsidwa ntchito kupanga mapiritsi oletsedwa, makapisole, etc.
8. Ph pH kukhazikika kwa yankho
HPMC imakhazikika mu pH magawo 3 mpaka 11, ndipo sakuwonongeka mosavuta kapena acita, motero itha kugwiritsidwa ntchito m'njira zosiyanasiyana, monga mapangidwe opanga mankhwala tsiku lililonse.
9. Mchere Kukana
HPMC Njira yothetsera mchere wamtundu ndipo sizikupezeka mosavuta kapena zosagwira ntchito chifukwa cha ion ndende, yomwe imatha kukhalabe ndi matope ena (monga matope a simenti).
10. Kukhazikika kwa mafuta
Ma Evancence®hptc ali ndi bata bwino kutentha kwambiri madera, koma amatha kunyoza kapena kusungunuka pomwe kumawonekera kutentha kwa nthawi yayitali. Imatha kukhalabe ndi ntchito yabwino mkati mwa kutentha kwina (nthawi zambiri pansi pa 200 ° C), kotero ndikoyenera kugwiritsa ntchito kutentha kwambiri.
11. Kukhazikika kwamankhwala
HpmcImakhala yokhazikika ku kuwala, oxidants ndi mankhwala wamba, ndipo samakhudzidwa mosavuta ndi mitundu yakunja yamankhwala. Chifukwa chake, itha kugwiritsidwa ntchito popanga zosungira nthawi yayitali, monga mapangidwe ndi mankhwala.
Hydroxypropyl amagwiritsidwa ntchito kwambiri m'mafakitale ambiri chifukwa cha kusumuli bwino, kukula, minyewa ya mafuta, mawonekedwe opanga mafilimu komanso kukhazikika kwamafilimu. M'makampani omanga, imatha kugwiritsidwa ntchito ngati simenti ya simenti; M'makampani opanga mankhwala, imatha kugwiritsidwa ntchito ngati mankhwala osokoneza bongo; M'makampani azakudya, ndiowonjezera chakudya. Ndi zinthu zapadera zomwe zimapangitsa HPMC chinthu chofunikira kwambiri polymer.
Post Nthawi: Feb-10-2025