Umlinganiswa:I-Hydroxyethyl Cellulose (HEC CAS: 9004-62-0) ngumgubo omhlophe okanye otyheli ongenavumba, ongenavumba, kunye nomgubo oqukuqelayo ngokulula.Inyibilika kumanzi abandayo kunye nakumanzi ashushu, kodwa ayinyibiliki ngokubanzi kwizinyibilikisi ezininzi zezinto eziphilayo.Ixabiso le-pH litshintsha kancane kuluhlu lwe-2-12, kodwa i-viscosity iyancipha ngaphaya kolu luhlu.
Ixabiso:I-Hydroxyethyl Cellulose (HEC CAS:9004-62-0) sisityebi esisetyenziswa ngokuqhelekileyo kwi-ether esekwe kwi-organic based based inki.I-compound ye-nonionic e-soluble yamanzi ekwazi ukutyeba kakuhle kwamanzi, inokutshatyalaliswa yi-oksijini, i-acids, kunye ne-enzymes, kwaye inokugqithwa yi-Cu2 + phantsi kweemeko ze-alkaline.I-thermal stable, ayibonakali i-gel ngexesha lokufudumala, ayifuni phantsi kweemeko ze-acidic, kwaye inepropati efanelekileyo yokwenza ifilimu.Isisombululo saso samanzi singenziwa kwiifilimu ezicacileyo, ezinokuthi zenziwe ngesenzo se-alkaline cellulose kunye ne-Chemicalbook ethylene oxide, kwaye ineempawu zokuqina, i-emulsification, i-adhesion, ukumiswa, ukwenza ifilimu, ukugcinwa komswakama kunye nokukhusela i-colloid.Indima yee-thickeners kwii-inki ezisekelwe emanzini kukujiyisa.Ukongeza i-thickeners kwi-inki kwandisa i-viscosity yayo, enokuphucula ukuzinza komzimba kunye neekhemikhali ze-inki;Ngenxa yokwanda kwe-viscosity, i-rheology ye-inki inokulawulwa ngexesha lokushicilela;I-pigment kunye ne-filler kwi-inki ayilula ukukhawuleza, ukwandisa ukuzinza kokugcinwa kwe-inki esekelwe emanzini.
Indlela yokuvelisaI-Alkali cellulose yipolymer yendalo equlethe amaqela amathathu e-hydroxyl kwiringi nganye yesiseko sefayibha.Elona qela lisebenzayo le-hydroxyl liyasabela ukuvelisa i-hydroxyethyl cellulose.Gxila i-linter ye-cotton ekrwada okanye i-pulp esulungekileyo kwi-30% ye-alkali yolwelo, kwaye uyikhuphe ukuze ucinezele emva kwesiqingatha seyure.Cinezela de amanzi e-alkaline afikelele kwi-1: 2.8, uze uyityumle.I-cellulose yealkali etyumkileyo ifakwa kwi-reactor, itywinwe, icociwe, kwaye izaliswe yinitrogen.I-Chemicalbook ihlanjululwe ngokuphindaphindiweyo kwaye izaliswe nge-nitrogen ukuze ithathe indawo yonke yomoya kwi-reactor.Cinezela kulwelo lwe-ethylene oxide epholileyo, dlulisela amanzi apholisayo kwibhatyi yereactor, kwaye ulawule ubushushu bokusabela ukuya malunga ne-25 ℃ nge-2h ukufumana imveliso ekrwada ye-hydroxyethyl cellulose.Imveliso ekrwada ihlanjwe ngotywala, ingathathi hlangothi nge-acetic acid ukuya kwi-pH 4-6, kwaye idibene ne-glyoxal yokuguga.Emva koko hlamba ngamanzi, i-centrifuge, dehydrate, yome, kwaye ucole ukufumana i-hydroxyethyl cellulose.
Ixesha lokuposa: Mar-28-2023
