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Ka whakamahia nuitia te Methyl cellulose

Ko te Methylcellulose he cellulose methyl ether. He ma, he kowhai marama ranei he matūriki iti, he kawa, he paura ranei. Karekau he kakara me te reka, tata ki te 27% ki te 32% o nga roopu hydroxyl kei te ahua o nga roopu methoxy. Ko nga taumata rereke o te methyl cellulose he rereke nga nekehanga o te polymerization, mai i te 50 ki te 1000; A ko tana taumaha ngota (toharite) mai i te 10000 ki te 22000 Da, a ko tana tohu whakakapinga ko te tau toharite o nga roopu methoxy, e hono ana ki ia waeine glucose anhydride i runga i te mekameka.

    Whakaahuatanga

    Ko te Methylcellulose he ether cellulose kore-ionic, ka puta mai i te etherification ma te whakauru i nga roopu methyl ki te cellulose.
    Ko te Methylcellulose he cellulose methyl ether. He ma, he kowhai marama ranei he matūriki iti, he kawa, he paura ranei. Karekau he kakara me te reka, tata ki te 27% ki te 32% o nga roopu hydroxyl kei te ahua o nga roopu methoxy. Ko nga taumata rereke o te methyl cellulose he rereke nga nekehanga o te polymerization, mai i te 50 ki te 1000; A ko tana taumaha ngota (toharite) mai i te 10000 ki te 22000 Da, a ko tana tohu whakakapinga ko te tau toharite o nga roopu methoxy, e hono ana ki ia waeine glucose anhydride i runga i te mekameka.

    whakaahuatanga2

    āhuatanga ā-tinana, matū hoki

    1, Te ahua:He ma, he ahua-ma ranei te paura kirikiri, kirikiri ranei, he hongi me te kore reka.
    2, Rongoā:Tata korekore i roto i te waiwaro, te etera, te chloroform (1: 1) i roto i te ranunga ka taea te hanga i te wairewa maamaa, iri ranei. I roto i te 80-90 oC te wai wera te pupuhi tere, te whakamahana i muri i te whakakorenga tere, te whakakorenga wai i te waahi o te rūma he tino pumau, te teitei o te wera o te rangi, Ka puta te whakawhiti mai i te ra ki te whakakore i muri i te whakamahana me te whakamahana.
    3, Ahuatanga:He pai te makuku, te whakamararatanga, te piri, te whakapakeke, te whakaemulsifying, te pupuri wai me te hanga kiriata, me te koretake o te hinu. Ko te kiriata he tino pakari, he ngawari me te marama. Na te mea he katote-kore, ka taea te hototahi ki etahi atu whakaemi, engari he ngawari ki te tote me te pumau te otinga ki te awhe pH 2-12.
    4, Kiato:1.3g/cm; te kiato ahua: 0.25-0.7 g/cm3.
    5, Te wera o te tae:190-200oC.
    6, Te pāmahana waro:225-230oC.
    7, Taumatau Mata:47-53 den/cn.
    Sucralose 1mje
    Sucralose 2e04
    Sucralose414t

    Whakatakotoranga hua

    Pepa Ra Hangarau:

    Ingoa kaupapa Tohu(55AX Series)
    Methoxyl 27.0-32.0
    Te mahana o te ra 50-55
    Te kore taumaha maroke ≤5
    Te tahu toenga ≤1
    Te whakarewa taumaha ≤20
    Te tote arsenic ≤2
    Ph. 5.0-8.0
    Poneke Tirohia te whakarōpūtanga pokey
    Nga whakaritenga o te pokey

    Kāwai Whakatakotoranga Awhe
    Te pokey iti 50 40-60
    100 80-120
    400 350-450
    Te pokey teitei 1000 800-1200
    2000 1600-2400
    4000 3500-4500
    Pokey teitei ake 30000 24000-36000
    50000 45000-55000
    75000 70000-80000
    100000 85000-105000

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