Ethylcellulose e entsoe ka eng?

Ethyl cellulose ke polymer ea maiketsetso e nkiloeng ho selulose ea tlhaho, e leng karolo e tloaelehileng ea sebopeho sa marako a lisele tsa semela. Tlhahiso ea cellulose ea ethyl e kenyelletsa phetoho ea lik'hemik'hale tsa selulose ea tlhaho ho sebelisa ethyl chloride le catalyst ho hlahisa ethyl ether derivative ea cellulose.

Ts'ebetso e qala ka tlhoekiso ea selulose ho tsoa mehloling ea limela, joalo ka makhasi a lehong kapa k'hothone. Ka mor'a moo, cellulose e hloekisitsoeng e qhibiliha ka motsoako oa metsoako e kang ethanol le metsi, ho etsa motsoako oa viscous. Joale ethyl chloride e kenngoa ka tharollo, hammoho le catalyst, e thusang karabelo pakeng tsa selulose le ethyl chloride.

Nakong ea karabelo, molek'hule ea ethyl chloride e nka sebaka sa lihlopha tse ling tsa hydroxyl ka ketane ea cellulose, e leng se etsang hore ho thehoe cellulose ea ethyl. Tekanyo ea ethoxylation, kapa palo ea lihlopha tsa ethyl tse khomaretsoeng yuniti e 'ngoe le e' ngoe ea tsoekere ka ketane ea cellulose, e ka laoloa nakong ea karabelo ho hlahisa cellulose ea ethyl e nang le thepa e fapaneng le litšobotsi tsa ho qhibiliha.

Ka mor'a hore karabelo e phethoe, ethyl cellulose e hlahisoang e hloekisoa le ho omisoa ho tlosa metsoako kapa litšila tse setseng. Sehlahisoa sa ho qetela ke phofo e tšoeu kapa e mosehla e qhibilihang ka har'a mefuta e mengata ea li-solvents, empa e sa qhibilihe metsing.

Ka kakaretso, ethyl cellulose ke polymer ea maiketsetso e nkiloeng ho selulose ea tlhaho ka mokhoa oa ho fetola lik'hemik'hale o kenyelletsang ho eketsoa ha lihlopha tsa ethyl ho ketane ea cellulose.