. I muri i te maha o nga tauhohenga, ka whakatutukihia te maimoatanga o te cellulose ether. Ko te tikanga, ko te tohu o te whakakapinga ko 1.6 ~ 2.0, a, he rereke te tohu o te whakakapinga. No te kore-katote cellulose.
1 Ma te māngaro, GUR GUM me te maha atu o nga mowhiti he mea hototahi. Ka puta te tipu ka tae ana te pāmahana ki te pāmahana tapatahi.
Ko te pupuri i te wai o Metylcellulose e whakawhirinaki ana ki tana moni taapiri, te tirohanga, te pai o te hinu me te reanga whakaheke. Ko te tikanga nui, iti, tirohanga nui, te pupuri i te wai nui. I roto ia ratou, ko te pupuri i te wai te mea nui rawa atu, ko te taumata tirotiro kaore i te riterite tika ki te pupuri wai. Ko te reanga rewa te nuinga kei te taumata o te whakarereke o te mata o nga matūriki cellulose me te pai o nga matūriki. I roto i nga whatunga o runga ake nei, ko te celluxyp me te hydroxypropyl cellulose he nui te pupuri wai.
Ko nga huringa o te pāmahana ka tino pa ki te pupuri i te wai o te cellulose methyl. - Ko te teitei o te pāmahana, te kino ki te pupuri i te wai. Mena ka nui ake te pāmahana o te mokamoka 40 ° C, ka tino whakaitihia te rongoa wai o te cellulise wai, ka tino pa ki te hanganga o te paru.
Ko te methylcelllose he tino paanga ki te mahi me te whakapiri i te paru. Ko te "piri" i konei e pa ana ki te taapiri i waenga i te taputapu tono a te kaimahi me te papapa o te pakitara, ara, te pareparenga kutikuti o te mokete. Ko te tirohanga, ko te kaha o te mokete, me te kaha e hiahiatia ana e nga kaimahi i roto i te whakamahinga, he nui hoki te hanga mo te hanga mokete. Methylcellulose piri ki nga taumata ngawari i roto i nga hua cellulose.
2 Ko te cellulose kore-inoc whakaranu i whakaritea e te raupapa o te urupare i muri i te whakarewatanga o te miihini miro a Alkali, i te wa e whakamahia ana a Propoylene methyl chloride. Ko te tohu o te whakakapinga he 1.2 / 2.0. Ko ona taonga he rereke i runga i te ōwehenga o te ihirangi methoxyl me nga tuhinga hydroxypropyl.
1. Ko tana pāmahana tipu i roto i te wai wera he tino tiketike ake i te methylcellose. E whakaatu ana hoki i te whakapainga nui mo te metylcellulose ka rewa i roto i te wai makariri.
Ko te tirohanga o te hydroxypropyl methylcellulose e pa ana ki te taumaha o te ngota, me te taumaha o te koriri. Ka pa ano te pāmahana ki tana tirohanga, ka piki haere te pāmahana, te heke o te manawa. Heoi, ko te mana o te pāmahana i runga i te tirotiro he iti ake i te waa o te methyl cellulose. Ko te otinga ko te rokiroki kei te pāmahana rūma.
3. Ko te pupuri i te wai o te hydroxypropyl te methylcellolose e whakawhirinaki ana ki tana rahi, me te tirotiro, me etahi atu.
4. Ko te methylcelulose e mau ana ki te waikawa me te alkali, me te otinga o te waimoana he tino pumau i te waahanga o te 2/12. Ko te mahinga o te houra kirika me te waiariki kaore i te kaha te awe, engari ka taea e te alkali te whakatere i tana utu whakakore, ka piki haere te tirohanga. Ko te methylceluloulose e mau ana ki nga tote noa, engari ka nui te kukume o te otinga tote, ko te whakamaarotanga o te konupora o te hydroxyproplose e ahu atu ana.
Ko te methylcecropyl methylcellulose ka taea te whakaranu ki nga Pakeha-paoho wai ki te hanga kakahu, he otinga tino nui. Pēnei i te waipiro polyvinyl, te māhu hāora, te gum huawhenua, me etahi atu
Ko te methyelcellose he pai ake te aukati i te whakamarumaru o tana otinga, a ko te taapiri o te hydroxyprophylcellulose ki te hanga o te mokete. pūtau turanga.
Tokotoru, ko te hydroxyethyl cellulose (hec) ka hangaia mai i te miro i hangaia ki a Ackali, i te aroaro o Acetone, me te apiylene oxide hei kaihautū-a-roto. Ko te tohu o te whakakapinga ko te tikanga 1.5 / 2.0. He kaha te hydrophilility ka ngawari ki te ngongo i te makuku.
1.. Ko te cellulase hydroxyetyl he rewa i roto i te wai makariri, engari he uaua ki te rewa i roto i te wai wera. Ko te otinga he pumau i te pāmahana tiketike, ā, kāhore he taonga o te Gel. Ka taea te whakamahi mo te wa roa i roto i te riipene nui-pāmahana, engari he iti ake te pupuri i te wai ki te methyl cellulose.
2. Ka whakatere a Alkali i tana whakakorenga, ka piki ake te ahua o tana hiahia. Ko tana marara i roto i te wai he paku kino atu i tera o te methyl cellulose me te hydroxypropyl methyl cellulose.
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4. Carboxymethyl Cellulose (CMC) \ [c6h7o2 (oh) 2och2coona] (he miro, me etahi atu) e whakamahia ana hei aakahu tuuturu, i muri i te kohinga o te tauhohenga. Ko te tohu o te whakakapinga ko te 0.4 / 1.4, me te tohu whakakapinga he nui ake te paanga o te mahi.
Ko te CarxyMatyl Cellulose he tino hygrosscopicity, a ko nga tikanga penapena whanui he nui ake te wai.
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Ko tona pumau ka pa ki te pH. I te nuinga o te wa e whakamahia ana mo te paru Gypsum, ehara i te mea mo te paru raima. I roto i te keehi o te papatahi teitei, ka ngaro tona ahua.
He iti ake te pupuri i tana wai i runga i te cellulose methyl. Ko te Mihinare Gypsum he hua whakahoki, he whakaiti i te kaha. Engari ko te utu o te carboxymethyl he tino iti iho i te waa o te cellulose methyl.
Te wa tuku: Feb-14-2025