HEMC ndi chiyani?

Hydroxyethyl Methylcellulose (HEMC) ndi chochokera ku cellulose ether chomwe chimagwiritsidwa ntchito ngati thickening agent, stabilizer, ndi chowonjezera chosungira madzi m'mafakitale osiyanasiyana, makamaka pomanga, mankhwala, ndi mankhwala osamalira anthu. Mofanana ndi Hydroxypropyl Methylcellulose (HPMC), HEMC imapangidwa pochiza cellulose ndi ethylene oxide ndi methyl chloride, zomwe zimapangitsa kuti pakhale gulu limodzi ndi magulu onse a hydroxyethyl ndi methyl omwe amamangiriridwa pamsana wa cellulose.

HEMC imagawana katundu wambiri ndi HPMC, kuphatikiza:

1. Kusungirako Madzi: HEMC imatha kuyamwa ndikusunga madzi, kuwapangitsa kukhala ofunikira muzinthu za simenti monga matope ndi zomatira matailosi kuti apewe kuyanika msanga ndikuwongolera magwiridwe antchito.
2. Kunenepa: Kutha kuwonjezera mamasukidwe amadzimadzi amadzimadzi, omwe amakhala opindulitsa pakugwiritsa ntchito utoto, zokutira, ndi zinthu zosamalira munthu kuti akwaniritse mayendedwe omwe mukufuna.
3. Kukhazikika: HEMC imathandizira kukhazikika kwa emulsions ndi kuyimitsidwa, kupewa kupatukana kwa gawo ndikusunga homogeneity yazinthu.
4. Kupanga Mafilimu: Mofanana ndi HPMC, HEMC ikhoza kupanga filimu yopyapyala ikagwiritsidwa ntchito pamtunda, kupereka chitetezo ndi kupititsa patsogolo kumamatira.
5. Katundu Woyenda Bwino: Itha kuwongolera mawonekedwe amayendedwe, kuwongolera kukonza ndi kugwiritsa ntchito.

HEMC nthawi zambiri imakonda kuposa HPMC m'mapulogalamu ena chifukwa chakuchepa kwake komanso kusungunuka kwabwino m'madzi ozizira. Komabe, kusankha pakati pa HEMC ndi HPMC kumadalira zofunikira za kapangidwe kake ndi njira zogwirira ntchito.

Mwachidule, HEMC ndi yosunthika yochokera ku cellulose ether yokhala ndi ntchito zambiri m'mafakitale osiyanasiyana, pomwe zinthu zake monga thickener, stabilizer, and water-reservation agent ndizofunika kwambiri.