I-Cellulose Ether

I-Cellulose Etherkwenziwa kusuka ku-cellulose ngokuphendula okuthe xaxa kwe-ejenti eyodwa noma eminingana yokusheshisa nokugaya owomile. Ngokusho kwezinhlaka ezahlukahlukene zamakhemikhali zokufaka esikhundleni se-ether, ama-cellulose asher ahlukaniswe zaba izithambiso ze-anionic, i-cationic kanye ne-anionic. I-Ionic Cellulose Afers ikakhulukazi ifaka phakathiI-Carboxymethyl Cellulose Ether (CMC); AbakwaNonic Cellulose Ababandakanya ikakhulukaziI-methyl cellulose ether (MC),I-Hydroxypropylm methyl cellulose ether (HPMC)kanye ne-hydroxyethyl cellulose ether.Chlorine ether (HC)njalo njalo. Abangewona ama-Ionic tifers bahlukaniswe izithambiso ezingenamanzi kanye nabathambisi abangenawo amafutha, futhi abasebenza ngamanzi angenamikhawulo bamanzi asetshenziswa kakhulu emikhiqizweni yodaka. Lapho ebukhona be-calcium ion, ionic cellulose ether ayizinzile, ngakho-ke akuvamile ukusetshenziswa emikhiqizweni yodaka eyomile esebenzisa usimende, ulamula ovundwayo, njll. Njengezinto zokwenziwa kokonga. Izithambiso ze-cellulose ezingenamanzi ezingezinyoni zisetshenziswa kabanzi embonini yezinto zokwakha ngenxa yokuqina kwawo ukumiswa nokugcinwa kwamanzi.

Izici zamakhemikhali ze-cellulose ether

I-cellulose ether ngayinye inesakhiwo esiyisisekelo sesakhiwo se-cellulose -anhydroglucose. Esezinhlelweni zokukhiqiza i-cellulose ether, i-cellulose fiber ifudunyezwa okokuqala kwikhambi le-alkali, bese liphathwe nge-ejenti etherati. Umkhiqizo wokuphendula we-fibrous uhlanzwa futhi wahlehliswa ukwakha i-powder efanayo nobunzima obuthile.

Ehlelweni lokukhiqiza le-MC, kusetshenziswa i-methyl chloride kuphela njenge-ejenti yokusheshisa; Ngokungeziwe ku-methyl chloride, i-propelene oxide nayo isetshenziselwa ukuthola amaqembu angenama-hydroxypropylk ekukhiqizweni kwe-HPMC. I-Cellulose Tapers ehlukahlukene inezilinganiso zokufakwa esikhundleni se-methyl kanye ne-hydroxypropylyly, ezithinta ukuhambisana kwe-organic kanye nokushisa okushisa okushisayo kwe-cellulose ether solutions.