Ezona zalathisi ziphambili zokulinganisa umgangatho we-CMC liqondo lokutshintshwa (DS) kunye nobunyulu.Ngokubanzi, iimpawu ze-CMC zahlukile xa i-DS yahlukile;iqondo eliphezulu lokutshintshwa, ngcono ukunyibilika, kwaye ngcono ukungafihli kunye nokuzinza kwesisombululo.Ngokutsho kweengxelo, ukucaca kwe-CMC kungcono xa i-degree of substitution i-0.7-1.2, kunye ne-viscosity yesisombululo sayo samanzi sikhulu xa ixabiso le-pH li-6-9.
Ukuze kuqinisekiswe umgangatho wayo, ukongeza kukhetho lwe-ejenti etherifying, ezinye izinto ezichaphazela iqondo lokuthatha indawo kunye nobunyulu kufuneka ziqwalaselwe, ezifana nobudlelwane bedosi phakathi kwe-alkali kunye ne-ejenti etherifying, ixesha lokulinganisa, umxholo wamanzi wenkqubo, ubushushu. , ixabiso le-pH, ukugxininiswa kwesisombululo kunye neetyuwa.
I-sodium carboxymethyl cellulose isetyenziswa kakhulu kwi-petroleum, ukutya, amayeza, i-textile, i-papermaking kunye namanye amashishini, ngoko ke kubaluleke kakhulu ukugweba ngokuchanekileyo ukucoceka kwayo, kwaye ngumlinganiselo wokuqinisekisa ukusetyenziswa kwayo, ngoko ke, sinokubona njani? Uyanuka, uchukumise, ukhothe, ukuba ubumsulwa?
1. I-sodium carboxymethyl cellulose enobunyulu obuphezulu inokugcinwa kwamanzi okuphezulu kakhulu, ukuhanjiswa kokukhanya okulungileyo, kwaye izinga lokugcinwa kwamanzi liphezulu ukuya kuma-97%.
2. Iimveliso ezinobunyulu obuphezulu aziyi kuvumba iphunga le-ammonia, isitashi kunye notywala, kodwa ukuba zicocekile, ziyakwazi ukuvumba iintlobo ezahlukeneyo zokunambitheka.
3. I-cellulose ye-sodium carboxymethyl ecocekileyo i-fluffy ebonakalayo, kwaye i-bulk density incinci, uluhlu luyi: 0.3-0.4 / ml;ubumanzi bokukrexeza bungcono, isandla siziva sinzima, kwaye kukho umahluko obonakalayo kunye nenkangeleko yokuqala.
4. Umxholo wechloride weCMC ubalwa ngokubanzi kwi-CL, emva kokuba kulinganiswe umxholo we-CL, umxholo we-NaCl unokuguqulwa ube yi-CL%*1.65
Kukho ubudlelwane obuthile phakathi komxholo we-CMC kunye ne-chloride, kodwa ayizizo zonke, kukho ukungcola okufana ne-sodium glycolate.Emva kokwazi ukucoceka, umxholo we-NaCl unokubalwa ngokumalunga NaCl% = (100-purity) / 1.5
Cl%=(100-ubunyulu)/1.5/1.65
Ngoko ke, imveliso yokukhotha ulwimi inencasa enamandla yetyuwa, ebonisa ukuba ubunyulu abukho phezulu.
Ngexesha elifanayo, i-high-purity sodium carboxymethyl cellulose yimeko yefayibha eqhelekileyo, ngelixa iimveliso eziphantsi-ezihlambulukileyo ziyi-granular.Xa uthenga imveliso, kufuneka ufunde iindlela ezininzi ezilula zokuchonga.Ukongeza, kufuneka ukhethe umenzi onegama elihle, ukwenzela ukuba umgangatho wemveliso uqiniseke ngakumbi.
Ixesha lokuposa: Nov-11-2022