Umlinganiswa:I-Hydroxyethyl Cellulose (HEC CAS:9004-62-0) yipowder emhlophe okanye emthubi engenavumba, engenavumba, kwaye egeleza lula. Inyibilika emanzini abandayo nasemanzini ashushu, kodwa ngokubanzi ayinyibiliki kwizithambisi ezininzi zezinto eziphilayo. Ixabiso le-pH litshintsha kancinci kuluhlu lwe-2-12, kodwa i-viscosity iyancipha ngaphaya kolu luhlu.
Ixabiso：I-Hydroxyethyl Cellulose (HEC CAS:9004-62-0) sisixhobo sokutyebisa esisetyenziswa rhoqo kwi-inki ezisekelwe emanzini ezisekelwe kwi-cellulose ether. Sisixhobo esingeyiyo i-ionic esinyibilikayo emanzini esinamandla amahle okutyebisa amanzi, sinokonakaliswa yi-oksijini, ii-asidi, kunye nee-enzyme, kwaye sinokudityaniswa yi-Cu2+ phantsi kweemeko ze-alkaline. Sizinzile kubushushu, asibonakali njengejeli xa sifudumeza, asitshisi phantsi kweemeko ze-asidi, kwaye sineempawu ezilungileyo zokwenza ifilimu. Isisombululo sayo samanzi singenziwa sibe ziifilimu ezicacileyo, ezinokwenziwa ngesenzo se-alkaline cellulose kunye ne-Chemicalbook ethylene oxide, kwaye sineempawu zokutyebisa, i-emulsification, i-adhesion, i-suspension, i-film-forming, i-moisture retention, kunye ne-colloid protection. Indima yezityebisa kwi-inki ezisekelwe emanzini kukuzityebisa. Ukongeza izityebisa kwi-inki kwandisa i-viscosity yayo, enokuphucula uzinzo lomzimba kunye neekhemikhali kwi-inki; Ngenxa yokwanda kwe-viscosity, i-rheology ye-inki inokulawulwa ngexesha lokuprinta; I-pigment kunye ne-filler kwi-inki akulula ukuyilungisa, nto leyo enyusa uzinzo lokugcina i-inki esekwe emanzini.
Indlela yoMveliso：I-alkali cellulose yipolymer yendalo equlathe amaqela amathathu e-hydroxyl kwisangqa ngasinye sesiseko sefayibha. Iqela le-hydroxyl elisebenzayo kakhulu liyasabela ukuvelisa i-hydroxyethyl cellulose. Nciphisa i-cotton linter eluhlaza okanye i-pulp ecociweyo kwi-30% ye-alkali engamanzi, uze uyikhuphe ukuze uyicinezele emva kwesiqingatha seyure. Cinezela ude umxholo wamanzi e-alkaline ufikelele kwi-1:2.8, uze uyityumze. I-alkaline cellulose etyumkileyo ifakwa kwi-reactor, ivalwe, ivalwe, ize izaliswe yi-nitrogen. I-Chemicalbook ivalwe ngokuphindaphindiweyo kwaye izaliswe yi-nitrogen ukuze ithathe indawo yawo wonke umoya kwi-reactor. Cinezela kwi-ethylene oxide liquid epholileyo, udlulise amanzi okupholisa kwi-reactor jacket, kwaye ulawule ubushushu be-reaction ukuya kuma-25 ℃ kangangeeyure ezi-2 ukuze ufumane imveliso ye-hydroxyethyl cellulose ekrwada. Imveliso ekrwada ihlanjwa ngotywala, isuswe nge-acetic acid ukuya kwi-pH 4-6, kwaye idityaniswe ne-glyoxal yokwaluphala. Emva koko hlamba ngamanzi, i-centrifuge, ikhuphe amanzi emzimbeni, yomise, kwaye uyigaye ukuze ufumane i-hydroxyethyl cellulose.
Ixesha lokuthumela: Matshi-28-2023
