Hydroxyethyl cellulose ether
Hydroxyethyl cellulose ether bụ polymer na-abụghị ionic mmiri soluble, soluble na ma mmiri ọkụ na oyi.Hydroxyethyl cellulose ether nwere ọtụtụ viscosities, na ihe niile aqueous ngwọta na-abụghị Newtonian.
Hydroxyethyl cellulose ether nwere ezigbo hydration Njirimara.Ngwọta mmiri ya dị nro na nke edo, na-enwe ezigbo mmiri na ọkwa
Ihe na-esonụ bụ usoro nhazi ihe omimi nke hydroxyethyl cellulose ether:
N = ogo nke mkpokọta
E nwere atọ hydroxyl otu na nke ọ bụla anhydroglucose unit na cellulose, nke a na-emeso na alkali na aqueous sodium hydroxide ngwọta iji nweta cellulose sodium nnu, na mgbe ahụ na-enweta etherification mmeghachi omume na ethylene oxide na-etolite hydroxyethyl cellulose ether.Na usoro nke synthesizing HEC, ethylene oxide nwere ike ọ bụghị naanị dochie hydroxyl otu na cellulose, ma na-enweta a yinye polymerization mmeghachi omume na hydroxyl otu n'ime ndị nọchiri anya otu.
Oge nzipu: Jan-19-2023