Hydroxypropyl methylcellulose (hpmc)ndi cellulose yopanda ionic ey Zizindikiro zazikulu zaukadaulo wa HPMC zimaphatikizapo zinthu zakuthupi ndi mankhwala, kusakoloka, mafakisoni, digiri ya zolowa m'malo mwake, etc.
1. Maonekedwe ndi mawonekedwe oyambira
HPMC nthawi zambiri imakhala yoyera kapena yoyera, yoyera, yopanda pake, yopanda mphamvu, yosungunuka madzi abwino komanso kukhazikika. Itha kufalikira mwachangu ndikusungunuka m'madzi ozizira kuti apange yankho la colloidal kapena pang'ono, ndikusungunuka osavomerezeka mu ordonti okhazikika.
2. Makutu
Ma Ukuwoneka ndi amodzi mwa zizindikiro zofunika kwambiri zaukadaulo wa hpmc, zomwe zimatsimikizira momwe zimakhalira ndi nkhawa mu mapulogalamu osiyanasiyana. Makulidwe a HPMC nthawi zambiri amayesedwa ngati yankho la 2% ya am'madzi pa 20 ° C, ndipo ma I Victoil Iscclume ndi ochokera ku 200,000 a Mpamwamba 200,000. Makutu okwera, olimba kwambiri a yankho komanso rhelogy. Mukamagwiritsa ntchito m'mafakitale monga ntchito zomanga ndi mankhwala, kalasi yoyenera ya Iscctce iyenera kusankhidwa malinga ndi zosowa zenizeni.
3. Methoxy ndi Hydroxypropoxy
Mankhwala a hpmc amatsimikiziridwa ndi methoxy (-och₃) ndi hydroxypropoxy (-och₂choch₃) m'malo. HPMC yokhala ndi madigiri osiyanasiyana amawonetsera kusungunuka kosiyanasiyana, ntchito zapamwamba komanso kutentha kwa kutentha.
Methoxy Zolemba: Nthawi zambiri pakati pa 19.0% ndi 30.0%.
Hydroxypropoxy: nthawi zambiri pakati pa 4.0% ndi 12.0%.
4. Zolemba
Chinyontho cha HPMC chimayang'aniridwa nthawi zambiri ku ≤5.0%. Chinyezi chapamwamba chidzakhudza kukhazikika ndikugwiritsa ntchito zotsatira za malonda.
5. Phukusi lomwe lili
Phulusa ndi nthawi yotsalira pambuyo pa HPMC yatenthedwa, makamaka kuchokera ku mchere wazomwe amagwiritsa ntchito popanga. Zomwe zili phulusa nthawi zambiri zimayendetsedwa ku ≤1.0%. Mitundu yapamwamba kwambiri ya phulusa imatha kukhudza kuwonekera ndi kuyera kwa HPMC.
6. Kusungunuka ndi kuwonekera
HPMC ili ndi madzi abwino kusungunuka ndipo imatha kusungunuka mwachangu m'madzi ozizira kuti apange yankho la colloml. Kuwonekera kwa njirayi kumatengera kuyera kwa HPMC ndi kusinthika kwake. Njira yapamwamba ya HPMC nthawi zambiri imakhala yowoneka bwino kapena yosalala pang'ono.
7. Kutentha kwa gel.
HPMC Aquaous yankho limapanga gel osakaniza kutentha kwina. Kutentha kwake kwa gel nthawi zambiri kumakhala pakati pa 50 ndi 90 ° C, kutengera zomwe zili methoxy ndi hydroxyprophongo. HPMC yokhala ndi methoxy yotsika ya meloxy imakhala ndi kutentha kwambiri, pomwe HPMC yokhala ndi Hydroxypropoxy ali ndi kutentha kotsika.
8. PH Mtengo
Mtengo wa PH of Druncencence®hpmc mulquous nthawi zambiri umakhala pakati pa 5.0 ndi 8.0, womwe satenga nawo mbali kapena wofooka wa alkaline komanso woyenera kupangira malamulo osiyanasiyana.
9. kukula kwa tinthu
Chisangalalo cha HPMC chimafotokozedwa nthawi zambiri monga kuchuluka kudutsa kudzera pa 80-mesh screen. Nthawi zambiri amafunikira kuti bi98% amadutsa pazenera 80-mesh kuti muwonetsetse kuti ali ndi mwayi wobalalitsa ndi kusungunuka mukamagwiritsidwa ntchito.
10. Zambiri zachitsulo
Zolemba zachitsulo zolemera (monga kutsogolera ndi arsenic) za HPMC iyenera kutsatira miyezo yabwino. Nthawi zambiri, zotsogolera ndi ≤10 ppm ndi arsenic zomwe zili ≤3 ppm. Makamaka mu chakudya ndi ma grarmaceutical grade hpmc, zofuna za zitsulo zolemera ndizovuta kwambiri.
11. Zizindikiro Zachilengedwe
Kwa mankhwala osokoneza bongo komanso chakudya cham'madzi
Chiwerengero chonse cha Colony ≤1000 cfu / g
Kutentha kwathunthu ndi yisiti ≤100 cfu / g
E. Coli, Salmonla, etc. sayenera kupezeka
12. Madera akulu ogwiritsa ntchito
HPMC imagwiritsidwa ntchito kwambiri m'mafakitale ambiri chifukwa cha kukula kwake, kusungidwa kwamadzi, kupanga mafilimu, mafuta, emulsization ndi zinthu zina:
Makampani omanga: Monga wothandizila wamadzi ndi madzi mu matope a simenti, putty ufa, zomata za matabwa, komanso zokutira zakumwa madzi kuti zithandizire kumanga.
Makampani ogulitsa mankhwala: ogwiritsidwa ntchito ngati zomatira, zodziletsa, ndi kapisozi zipolopolo zopangira mapiritsi a mankhwala.
Makampani ogulitsa zakudya: Kugwiritsidwa ntchito ngati emulsifier, chivundikiro, kukula, chotupa, zakumwa, zinthu zophika, etc.
Makampani amakampani tsiku lililonse: ntchito ngati thickener ndi emulsifier ndi emulsifier mu zinthu zosamalira khungu, zotsekemera, ndi shampoos.
Zisonyezo zaHpmcPhatikizani ma Isccence, digiri ya zolowa m'malo mwa anthu), chinyontho, phula la PH, kutentha, ndi zina zambiri. Posankha HPMC, ogwiritsa ntchito ayenera kudziwa zoyenera malinga ndi zofunika mwatsatanetsatane kuti awonetsetse bwino ntchito.
Post Nthawi: Feb-11-2025