Iselulosi etherligama elidityanisiweyo kwiintlobo ezahlukeneyo ze-derivatives ezifunyenwe kwi-cellulose yendalo (ikotoni ecocekileyo kunye ne-pulp yomthi, njl.) ngokusebenzisa i-etherification. Yimveliso eyenziwe ngokutshintshelwa ngokuyinxenye okanye okupheleleyo kwamaqela e-hydroxyl kwi-cellulose macromolecules ngamaqela e-ether, kwaye i-derivative esezantsi ye-cellulose. Emva kwe-etherification, i-cellulose iyanyibilika emanzini, i-dilute izisombululo ze-alkali, kunye ne-organic solvents, kwaye ineempawu ze-thermoplastic. Kukho iindidi ezininzi ze-cellulose ethers, ezisetyenziswa ngokubanzi kumashishini afana nokwakhiwa, i-samente, iingubo, amayeza, ukutya, i-petroleum, iikhemikhali zemihla ngemihla, iingubo, ukwenza iphepha kunye nezinto ze-elektroniki. Ngokwenani lababambeleyo, inokohlulwa ibe zii-ether ezixubeneyo kunye nee-ether ezixubeneyo, kwaye ngokwe-ionization, inokwahlulwa ibe yi-ionic cellulose ethers kunye ne-non-ionic cellulose ethers. Okwangoku, inkqubo yokuveliswa kweemveliso ze-ionic cellulose ether ionic ikhulile, kulula ukuyivelisa, kwaye ixabiso liphantsi. Umqobo weshishini uphantsi ngokwentelekiso, kwaye usetyenziswa ikakhulu kwimiba yezongezo zokutya, izongezo zelaphu, ishishini lemichiza yemihla ngemihla, njl njl. Yeyona mveliso iphambili eveliswa kwimarike.
Okwangoku, eyona nto iphambilii-cellulose ethersehlabathini CMC, HPMC, MC, HEC, etc. Phakathi kwabo, CMC has imveliso inkulu, accounting malunga nesiqingatha semveliso yehlabathi, lo gama HPMC kunye MC akhawunti malunga 33% yemfuno yehlabathi, kunye HEC akhawunti for. malunga ne-13% yemarike yehlabathi. Eyona nto ibalulekileyo yokusetyenziswa kweCarboxymethyl cellulose (CMC) sisicoci, esibalelwa kwi-22% yemfuno yemarike esezantsi. Ezinye iimveliso zisetyenziswa ikakhulu kwizinto zokwakha, ukutya kunye namasimi amayeza.
Ixesha lokuposa: Jul-13-2023