Chidziwitso cha hydroxyethyl cellulose (hec cas: 9004-62-0)

Khalidwe:Hydroxyethyl cellulose (Hec Cas: 9004-62-0) ndi yoyera kapena yoyera yopanda, yopanda mafuta, komanso yoyenda mosavuta, komanso yosavuta. Sungunuka m'madzi onse ozizira ndi madzi otentha, koma nthawi zambiri mwangokhala okhazikika m'malo okhazikika. Mtengo wa pH umasintha pang'ono mu 2-12, koma ma viscy akuchepera kupitirira izi.

Peza mtengo:Hydroxyethyl cellulose (Hec Cas: 9004-62-0) ndi yogwiritsidwa ntchito kawirikawiri kwa cellulose ether eys. Ndiwosungunuka madzi osungunuka omwe ali ndi kuthekera kwabwino kwamadzi, kumatha kuchepetsedwa ndi mpweya, ma acid, ndi ma enzyme, ndipo imatha kudutsa cu2 + pansi pa cu2. Ndizokhazikika, sizimawoneka gel potenthedwa, sizimayendetsa pansi pa acidic mikhalidwe, ndipo imakhala ndi katundu wabwino wopanga mafilimu. Njira yake yothetsera madzi imatha kupangidwa m'mafilimu owonekera, omwe amatha kupangidwa ndi zochitika za alkaline cellulose ndi mankhwala a athylene oxide, ndipo ali ndi katundu, kusungunuka, kusungidwa, kutetezedwa, komanso kutetezedwa kolojekiti. Udindo wa Otsatsa m'mataks okhazikitsidwa ndi madzi ndikuwawaza. Kuonjezera m'matumbawo kumawonjezera ma victoni awo, omwe amatha kusintha kusungunuka kwakuthupi ndi kwamankhwala a inki; Chifukwa cha kuwonjezeka kwa mafakisoni, chizolowezi cha inkiyi chitha kuwongoleredwa posindikiza; Ma pigment ndi filler mu inki siosavuta kuthirira, kukulitsa kukhazikika kwa inki yochokera m'madzi.

Njira yopanga: Alkali cellulose ndi polymer yachilengedwe yomwe ili ndi magulu atatu a hydroxyl pa mphete iliyonse ya fiber. Gulu logwira ntchito kwambiri la hyroxyl limagwira ntchito ya hydroxyethyl cellulose. Zilowerere malo okwerera thonje kapena kukomoka mu 30% madzi alkali, ndikuchotsa kukanikiza pambuyo theka la ola. Kanikizani mpaka madzi am'madzi a Alkalinine akufika 1: 2.8, kenako ndikuphwanya. Cellulose yosweka yalkali imayikidwa mu riyakitalayo, yosindikizidwa, osapumira, ndikudzaza nayitrogeni. Ma Chectaokbook mobwerezabwereza ndikudzaza ndi nayitrogeni kuti alowe m'malo onse a riyakitala. Press mu Ethylene wowoneka bwino ma oxide ma oxide, pitani madzi ozizira mu jekete la rircy, ndikuwongolera kutentha kwa momwe mungathere 25 ℃ kwa 2h kuti mupeze mankhwala a curroulyl. Katundu wosatsutsika amatsukidwa ndi mowa, osalowerera ndi acetic acid mpaka pH 4-6, ndikuwoloka ndi glyloxal yokalamba. Kenako sambani ndi madzi, centrifuge, madzi owuma, owuma, ndi popera kuti mupeze hydroxethyl cellulose.