Cellulose Ether

Cellulose ethere entsoe ka selulose ka karabelo ea etherification ea e 'ngoe kapa tse' maloa tsa etherification le ho sila ho omileng. Ho ea ka likarolo tse fapaneng tsa lik'hemik'hale tsa li-substituents tsa ether, cellulose ethers e ka aroloa ka li-anionic, cationic le nonionic ethers. Ionic cellulose ethers haholo-holo e kenyelletsacarboxymethyl cellulose ether (CMC); li-non-ionic cellulose ethers haholo-holo li kenyelletsamethyl cellulose ether (MC),hydroxypropyl methyl cellulose ether (HPMC)le hydroxyethyl cellulose ether.Chlorine ether (HC)joalo joalo. Li-ether tse se nang ionic li arotsoe ka li-ether tse qhibilihang ka metsing le li-ethers tse qhibilihang ka oli, 'me li-ether tse se nang ionic tse qhibilihang ka metsing li sebelisoa haholo-holo lihlahisoa tsa seretse. Ka pel'a li-ion tsa calcium, ionic cellulose ether ha e tsitsa, kahoo ha e sebelisoe hangata lihlahisoa tsa seretse tse omeletseng tse sebelisang samente, slaked lime, joalo-joalo e le lisebelisoa tsa samente. Nonionic water-soluble cellulose ethers li sebelisoa haholo indastering ea thepa ea mohaho ka lebaka la botsitso ba tsona ba ho emisa le ho boloka metsi.

Lintho tsa Lik'hemik'hale tsa Cellulose Ether

Ether e 'ngoe le e 'ngoe ea cellulose e na le sebopeho sa motheo sa cellulose - sebopeho sa Anhydroglucose. Nakong ea ho hlahisa ether ea cellulose, fiber ea cellulose e qala ho futhumatsoa ka tharollo ea alkaline, ebe e phekoloa ka etherifying agent. Sehlahisoa sa karabelo ea fibrous se hloekisoa le ho siloa ho etsa phofo e ts'oanang e nang le botle bo itseng.

Ts'ebetsong ea tlhahiso ea MC, ke methyl chloride feela e sebelisoang e le moemeli oa etherification; ho phaella ho methyl chloride, propylene oxide e boetse e sebelisoa ho fumana lihlopha tse ling tsa hydroxypropyl tlhahiso ea HPMC. Li-ether tse fapaneng tsa cellulose li na le likarolo tse fapaneng tsa methyl le hydroxypropyl substitution ratios, tse amang tšebelisano ea lintho tse phelang le mocheso oa mocheso oa mocheso oa litharollo tsa cellulose ether.