I-Cellulose ether iyi-polymer yokwenziwa eyenziwe nge-cellulose yemvelo ngokuguqulwa kwamakhemikhali. I-Cellulose ether iyi-derivative ye-cellulose yemvelo. Ukukhiqizwa kwe-cellulose ether kuhlukile kuma-polymer okwenziwa. Izinto zayo eziyisisekelo yi-cellulose, i-polymer compound yemvelo. Ngenxa yokwakheka kwe-cellulose yemvelo, i-cellulose ngokwayo ayinawo amandla okusabela nama-etherification agents. Kodwa-ke, ngemva kokwelashwa kwe-ejenti yokuvuvukala, izibopho ezinamandla ze-hydrogen phakathi kwamaketanga e-molecule namaketanga ziyabhujiswa, futhi ukukhululwa okusebenzayo kweqembu le-hydroxyl kuba yi-reactive alkali cellulose. Thola i-cellulose ether.
Izakhiwo zama-ether e-cellulose zincike ohlotsheni, inombolo kanye nokusatshalaliswa kwezinto ezithatha indawo. Ukuhlukaniswa kwama-ether e-cellulose kusekelwe ohlotsheni lwezinto ezithatha indawo, izinga lokushiswa kwe-ether, ukuncibilika kanye nezakhiwo zokusetshenziswa ezihlobene. Ngokusho kohlobo lwezinto ezithatha indawo ku-molecule chain, ingahlukaniswa ibe yi-monoether kanye ne-ether exubile. Ngokuvamile sisebenzisa i-mc njenge-monoether, kanye ne-HPmc njenge-ether exubile. I-Methyl cellulose ether mc ingumkhiqizo ngemuva kokuthi iqembu le-hydroxyl kuyunithi ye-glucose ye-cellulose yemvelo ithathelwe indawo yiqembu le-methoxy. Kungumkhiqizo otholakala ngokufaka ingxenye yeqembu le-hydroxyl kuyunithi neqembu le-methoxy kanye nenye ingxenye neqembu le-hydroxypropyl. Ifomula yesakhiwo yi-[C6H7O2(OH)3-mn(OCH3)m[OCH2CH(OH)CH3]n]x I-Hydroxyethyl methyl cellulose ether HEmc, lezi yizinhlobo eziyinhloko ezisetshenziswa kakhulu futhi ezithengiswa emakethe.
Ngokuphathelene nokuncibilika, ingahlukaniswa ibe yi-ionic kanye ne-non-ionic. Ama-ether e-cellulose angewona i-ionic ancibilika emanzini akhiwe kakhulu uchungechunge olubili lwama-ether e-alkyl kanye nama-ether e-hydroxyalkyl. I-Ionic Cmc isetshenziswa kakhulu ekuhlanzeni okwenziwe ngezinto zokwenziwa, ukuphrinta nokudaya izindwangu, ukuhlola ukudla namafutha. Ama-mc angewona i-ionic, i-HPmc, i-HEmc, njll. asetshenziswa kakhulu ezintweni zokwakha, ezimbozweni ze-latex, emithini, amakhemikhali ansuku zonke, njll. Asetshenziswa njenge-thickener, i-ejenti yokugcina amanzi, i-stabilizer, i-dispersant kanye ne-ejenti yokwakha ifilimu.
Isikhathi sokuthunyelwe: Novemba-24-2022