Zidziwitso za Hydroxyethyl Cellulose (HEC CAS: 9004-62-0)

Khalidwe:Hydroxyethyl Cellulose (HEC CAS:9004-62-0) ndi yoyera kapena yachikasu yopanda fungo, yopanda fungo, komanso yotuluka mosavuta.Amasungunuka m'madzi ozizira ndi otentha, koma osasungunuka m'madzi ambiri osungunulira.Mtengo wa pH umasintha pang'ono mumtundu wa 2-12, koma kukhuthala kumachepera kuposa izi.

Mtengo:Ma cellulose a Hydroxyethyl (HEC CAS:9004-62-0) ndi chokhuthala chomwe chimagwiritsidwa ntchito kwambiri pama inki amadzi a cellulose ether.Ndi madzi osungunuka a nonionic osungunuka omwe ali ndi mphamvu yabwino yowonjezera madzi, amatha kuchepetsedwa ndi mpweya, ma asidi, ndi ma enzymes, ndipo amatha kulumikizidwa ndi Cu2 + pansi pamikhalidwe yamchere.Ndiwokhazikika pa thermally, samawoneka gel panthawi yotentha, sagwa pansi pa acidic, ndipo imakhala ndi katundu wabwino wopanga mafilimu.Njira yake yamadzimadzi imatha kupangidwa kukhala mafilimu owonekera, omwe amatha kupangidwa ndi zochita za alkaline cellulose ndi Chemicalbook ethylene oxide, ndipo ali ndi mphamvu ya thickening, emulsification, adhesion, kuyimitsidwa, kupanga mafilimu, kusunga chinyezi, ndi chitetezo cha colloid.Ntchito ya thickeners mu inki madzi ndi thickening iwo.Kuwonjezera thickeners kwa inki kumawonjezera mamasukidwe akayendedwe ake, amene angathe kusintha thupi bata ndi mankhwala a inki;Chifukwa cha kuwonjezeka mamasukidwe akayendedwe, ndi rheology inki akhoza kulamulidwa pa kusindikiza;The pigment ndi filler inki si zophweka precipitate, kuonjezera kusunga bata wa inki madzi.

Njira Yopangira: Alkali cellulose ndi polima zachilengedwe zomwe zimakhala ndi magulu atatu a hydroxyl pa mphete iliyonse ya fiber base.Gulu logwira kwambiri la hydroxyl limachita kupanga hydroxyethyl cellulose.Zilowerereni linter ya thonje yaiwisi kapena zamkati zoyeretsedwa mu 30% yamadzimadzi amchere, ndipo mutulutseni kuti mukanikize pakadutsa theka la ola.Kanikizani mpaka madzi amchere afika pa 1: 2.8, ndikuphwanya.Selulosi wophwanyidwa wa alkali amayikidwa mu riyakitala, kusindikizidwa, kupukuta, ndikudzazidwa ndi nayitrogeni.Chemicalbook mobwerezabwereza vacuumed ndi kudzazidwa nayitrogeni m'malo onse mpweya riyakitala.Kanikizani mu madzi oziziritsa a ethylene oxide, perekani madzi ozizira mu jekete la riyakitala, ndikuwongolera kutentha mpaka pafupifupi 25 ℃ kwa 2h kuti mupeze chopangidwa ndi cellulose ya hydroxyethyl.Zopanda pake zimatsukidwa ndi mowa, osasunthika ndi asidi acid mpaka pH 4-6, ndikulumikizidwa ndi glyoxal pakukalamba.Kenaka yambani ndi madzi, centrifuge, dehydrate, youma, ndikupera kuti mupeze hydroxyethyl cellulose.