Kusiyana Pakati pa EHEC ndi HPMC

EHEC ndi HPMC ndi awiri ambiri ntchito mitundu ya ma polima ndi nyumba zosiyanasiyana mankhwala ndi katundu. EHEC imayimira ethyl hydroxyethyl cellulose, pomwe HPMC imayimira hydroxypropyl methylcellulose. M'nkhaniyi, tikambirana kusiyana EHEC ndi HPMC mwa mawu a dongosolo mankhwala, katundu, ntchito, ndi chitetezo.

1. Kapangidwe ka Chemical

EHEC ndi polima osungunuka m'madzi omwe amachokera ku cellulose. Ndi ether yosinthidwa ya cellulose yomwe ili ndi magulu a ethyl ndi hydroxyethyl omwe amamangiriridwa pamsana wa cellulose. Mlingo wa m'malo (DS) wa EHEC umatanthawuza chiwerengero cha magulu a ethyl ndi hydroxyethyl omwe alipo pa anhydroglucose unit (AGU) ya cellulose backbone. The DS wa EHEC akhoza kuyambira 0,2 kuti 2.5, ndi apamwamba DS mfundo kusonyeza mlingo wapamwamba m'malo.

HPMC, kumbali ina, ndi polima wosungunuka m'madzi womwe umachokera ku cellulose. Ndi ether yosinthidwa ya cellulose yomwe ili ndi magulu onse a hydroxypropyl ndi methyl omwe amalumikizidwa ku msana wa cellulose. Mlingo wolowa m'malo mwa HPMC umatanthawuza kuchuluka kwa magulu a hydroxypropyl ndi methyl omwe amapezeka pa AGU ya msana wa cellulose. Ma DS a HPMC amatha kuyambira 0.1 mpaka 3.0, ndi ma DS apamwamba akuwonetsa kuchuluka kwa m'malo.

2. Katundu

EHEC ndi HPMC ndi katundu osiyana kuti kuwapanga kukhala oyenera ntchito zosiyanasiyana. Zina mwazinthu zazikulu za EHEC ndi HPMC zalembedwa pansipa:

a. Solubility: EHEC ndi zochepa sungunuka m'madzi kuposa HPMC, ndi solubility ake amachepetsa monga mlingo wa m'malo ukuwonjezeka. HPMC, Komano, ndi kwambiri sungunuka m'madzi.

b. Rheology: EHEC ndi zinthu za pseudoplastic, zomwe zikutanthauza kuti zimawonetsa kumeta ubweya wa ubweya. Izi zikutanthauza kuti mamasukidwe akayendedwe a EHEC amachepetsa monga kukameta ubweya mlingo ukuwonjezeka. HPMC, kumbali ina, ndi zinthu za Newtonian, zomwe zikutanthauza kuti kukhuthala kwake kumakhalabe kosalekeza mosasamala kanthu za kumeta ubweya.

c. Mafilimu opanga mafilimu: EHEC ili ndi zinthu zabwino zopangira mafilimu, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito zokutira ndi mafilimu. HPMC ilinso ndi zinthu zopanga mafilimu, koma makanema amatha kukhala osalimba komanso osavuta kusweka.

d. Kukhazikika: EHEC ndi yokhazikika pamitundu yosiyanasiyana ya pH ndi kutentha. HPMC ndi yokhazikika pamitundu yambiri ya pH, koma kukhazikika kwake kumatha kukhudzidwa ndi kutentha kwambiri.

3. Ntchito

EHEC ndi HPMC ntchito zosiyanasiyana ntchito m'mafakitale chakudya, mankhwala, ndi chisamaliro munthu. Zina mwazofunikira za EHEC ndi HPMC zalembedwa pansipa:

a. Makampani Food: EHEC ambiri ntchito monga thickener, stabilizer, ndi emulsifier mu zakudya monga sauces, mavalidwe, ndi katundu wophika. HPMC imagwiritsidwanso ntchito ngati thickener ndi stabilizer mu zakudya, koma amagwiritsidwa ntchito kwambiri ngati ❖ kuyanika zinthu confectionery monga maswiti gummy ndi chokoleti.

b. Mankhwala makampani: EHEC ntchito monga binder, disintegrant, ndi piritsi ❖ kuyanika wothandizila mu formulations mankhwala. HPMC imagwiritsidwanso ntchito ngati chomangira, chosungunula, ndi chopaka pamapiritsi pamapangidwe amankhwala, koma imagwiritsidwa ntchito kwambiri ngati chotulutsa nthawi zonse.

4. Chitetezo

EHEC ndi HPMC nthawi zambiri amaonedwa kuti ndi otetezeka kugwiritsa ntchito zakudya ndi mankhwala. Komabe, monga momwe zimakhalira ndi mankhwala aliwonse, pakhoza kukhala zoopsa zina zomwe zimagwirizanitsidwa ndi kugwiritsidwa ntchito kwawo.