Character:IHydroxYethyl Cellulose (HEC CAS Cellulose (I-HEC CAS: 9004-62-0) iyimpuphu emhlophe noma ephuzi, engenamandla, futhi egeleza kalula. Solula kuwo womabili amanzi abandayo namanzi ashisayo, kepha ngokuvamile awohlisiwe ezinhlamvwini eziningi ze-organic. Inani le-PH lishintsha kancane ebangeni le-2-12, kepha i-visa inciphisa ngaphezu kwalolu banga.
Thanda:I-Hydroxyyethyl cellulose (HEC CAS: 9004-62-0) ingumkhulu osetshenziswa kakhulu we-cellulose ether incks esekelwe emanzini. Yikhompiyutha esolulekile yamanzi enekhono elihle lokuqina amanzi, lingadilizwa umoya-mpilo, ama-acid, nama-enzyme, futhi linganqotshwa yi-CU2 + ngaphansi kwezimo ze-alkali. Kuyazinza, akubonakali ijeli ngesikhathi sokushisa, akusho ngaphansi kwezimo ze-acidic, futhi kunempahla enhle eyakha ifilimu. Isixazululo saso samanzi singenziwa saba amafilimu asobala, angakhiwa ngesenzo se-Alkaline Cellulose ne-EthLening Ethyle Indima yabakhudlwana kuma-inks asuselwa emanzini ukuqina. Ukungezwa kwabakhulu ku-INK kukhulisa ukubonakala kwayo, okungathuthukisa ukuqina ngokomzimba nangokomzimba koyinki; Ngenxa yokwanda kwe-viscosity, i-Rheology ye-inki ingalawulwa ngesikhathi sokuphrinta; I-pigment kanye ne-filler ku-uyinki akulula ukuqeda, ukukhulisa ukuqina kwesitoreji kwe-ink-esekwe emanzini.
Indlela yokukhiqiza: I-Alkali Cellulose iyi-polymer yemvelo equkethe amaqembu amathathu we-hydroxyl kwindandatho ngayinye eyisisekelo ye-fiber. Iqembu elisebenza kakhulu le-hydroxyl lisabela ukukhiqiza i-hydroxyethyl cellulose. Cwilisa i-lifrict eluhlaza noma ipulp ecwengekile ku-30% u-alkali, bese uyikhipha ukuze ucindezele ngemuva kwesigamu sehora. Cindezela kuze kube yilapho okuqukethwe kwamanzi e-Alkaline kufinyelela ku-1: 2.8, bese uyichoboza. I-Alkali Cellulose echotshoziwe ifakwa kumhlaziyi, ivaliwe, ivaliwe, futhi igcwele i-nitrogen. Amakhemikhali aphindaphindwe futhi agcwele i-nitrogen ukuze athathe umoya wonke ku-real. Cindezela ku-ethylene oxide uketshezi, dlulisela amanzi apholile kwijantshi le-reactor, futhi alawule izinga lokushisa elingaba ngu-25 ℃ ngo-2h ukuthola umkhiqizo we-crude hydroxyethyyl pulsulose. Umkhiqizo ongahluziwe ugezwa ngotshwala, obungathathi hlangothi nge-acetic acid kuya ku-ph 4-6, futhi uxhumene ne-glyxal yokuguga. Bese ugeza ngamanzi, i-centrifuge, hehydrate, womile, ugaye ukuze uthole i-hydroxyethyl cellulose.
Isikhathi sePosi: Mar-28-2023
