CELLULOSE ETHERS (MHEC)

Methyl Hydroxyethyl Cellulose(MHEC) imhando ye cellulose ether inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana kune ayo akasiyana siyana. Heino mhedziso yeMHEC:

Chimiro:

MHEC is modified cellulose ether inotorwa kubva ku cellulose kuburikidza nekutevedzana kwemakemikari reactions. Iyo inoratidzirwa nekuvapo kweese ari maviri methyl uye hydroxyethyl mapoka pane cellulose musana.

Properties:

1. Kunyungudika kweMvura: MHEC inonyungudika mumvura inotonhora, ichigadzira mhinduro dzakajeka uye dzakajeka.
2. Kukora: Inoratidza yakanakisa kukora zvivakwa, ichiita kuti ive yakakosha seye rheology modifier mune akasiyana mafomati.
3. Firimu Kugadzira: MHEC inogona kuumba anochinjika uye akabatana mafirimu, achibatsira mukushandiswa kwayo mukupfeka uye zvinonamira.
4. Kugadzikana: Inopa kugadzikana kune emulsions uye kumiswa, kuwedzera hupenyu hwesherufu yezvigadzirwa zvakagadzirwa.
5. Adhesion: MHEC inozivikanwa nekunamatira kwayo zvivakwa, zvichibatsira pakuvandudza kunamatira mune mamwe maapplication.

Applications:

1. Indasitiri yekuvaka:
   • Tile Adhesives: MHEC inoshandiswa mumatairi anonamira kuvandudza kushanda, kuchengetedza mvura, uye kunamatira.
   • Matope uye Renders: Inoshandiswa mumatope ane simende uye inopa kuwedzera kuchengetwa kwemvura uye kushanda.
   • Self-Leveling Compounds: MHEC inoshandiswa mumakomisheni ega-leveling nekuda kwekukora uye kudzikamisa zvivakwa.
2. Coatings uye Paints:
   • MHEC inoshandiswa mumvura-based pendi uye machira seanokora uye akadzikama. Inobatsira kuvandudza brushability uye kushanda kwese kwekuvhara.
3. Adhesives:
   • MHEC inoshandiswa mune zvakasiyana-siyana zvekunamira kuwedzera kunamatira uye kugadzirisa rheological zvimiro zveanonamatira maumbirwo.
4. Pharmaceuticals:
   • Mumishonga yemishonga, MHEC inoshandiswa sebhainda, disintegrant, uye firimu-kugadzira mumiririri mukugadzirwa kwehwendefa.

Manufacturing process:

Kugadzirwa kweMHEC kunosanganisira etherification ye cellulose nemusanganiswa wemethyl chloride uye ethylene oxide. Iwo chaiwo mamiriro uye reagent ratios anodzorwa kuti awane iyo inodiwa dhigirii yekutsiva (DS) uye kugadzirisa zvimiro zvechigadzirwa chekupedzisira.

Kudzora Hunhu:

Matanho ekutonga kwemhando, anosanganisira hunyanzvi hwekuongorora senge nuclear magnetic resonance (NMR) spectroscopy, anoshandiswa kuona kuti dhigirii rekutsiva riri mukati meiyo yakatarwa uye kuti chigadzirwa chinosangana nezvinodiwa.

MHEC's versatility inoita kuti ive chinhu chakakosha mumhando dzakasiyana-siyana dzekugadzirisa, zvichibatsira mukuvandudza kushanda kwezvinhu zvekuvaka, machira, adhesives, uye mishonga yemishonga. Vagadziri vanogona kupa mamakisi akasiyana eMHEC kusangana nezvinodiwa zvakasiyana zvemaindasitiri akasiyana.