Ndeupi musiyano uripo pakati peHPMC neHEMC?

HPMC (Hydroxypropyl Methylcellulose) uye HEMC (Hydroxyethyl Methylcellulose) ese ari maviri anobva ku cellulose ayo anoshandiswa seanokora, mabhainda, uye emulsifiers mumhando dzakasiyana dzezvigadzirwa. Iwo ese ari maviri akatorwa kubva ku cellulose, yakasikwa polysaccharide inowanikwa muzvirimwa.

Musiyano mukuru pakati peHPMC neHEMC imhando ye hydroxypropyl uye hydroxyethyl mapoka akabatanidzwa kune cellulose molecule. HPMC ine hydroxypropyl mapoka akasungirirwa kune cellulose molecule, nepo HEMC ine hydroxyethyl mapoka akabatanidzwa. Uyu mutsauko mumhando ye hydroxypropyl uye hydroxyethyl mapoka unokanganisa zvimiro zvezviviri zve cellulose zvinobva.

HPMC inonyanya kunyungudika mumvura inotonhora kupfuura HEMC, uye inoshingirira kushanduka kwekushisa. Iine viscosity yakakwirira kupfuura HEMC, uye inonyanya kupikisa acid uye alkali. Izvo zvakare zvakanyanya kupikisa kune microbial degradation. HPMC inoshandiswa mumhando dzakasiyana dzezvigadzirwa, zvinosanganisira chikafu, mishonga yemishonga, uye zvekuzora.

HEMC hainyanyi kunyungudika mumvura inotonhora kupfuura HPMC, uye haidziviriri kushanduka kwekushisa. Iyo ine yakaderera viscosity pane HPMC, uye haina kusimba kune asidhi uye alkali. Iyo zvakare haina kushomeka kune microbial degradation. HEMC inoshandiswa mumhando dzakasiyana dzezvigadzirwa, zvinosanganisira chikafu, mishonga yemishonga, uye zvekuzora.

Muchidimbu, HPMC neHEMC ese ari maviri ma cellulose anobva anoshandiswa seanokora, mabhainda, uye emulsifiers mune akasiyana zvigadzirwa. Musiyano mukuru pakati pezviviri imhando ye hydroxypropyl uye hydroxyethyl mapoka akasungirirwa kune cellulose molecule. HPMC ine hydroxypropyl mapoka akasungirirwa kune cellulose molecule, nepo HEMC ine hydroxyethyl mapoka akabatanidzwa. Uyu mutsauko mumhando ye hydroxypropyl uye hydroxyethyl mapoka unokanganisa zvimiro zvezviviri zve cellulose zvinobva.