Carboxymethyl Cellulose (Konutai Carboxymethyl Cellulose), e kiia ana ko CMC, he puhui polymer o te colloid hohe mata.He hongi, kore reka, kore paitini wai-wairewa cellulose pärönaki.Ko te kaihere cellulose organic he ahua o te cellulose ether, ka whakamahia te tote konutai, no reira ko tona ingoa katoa ko te konutai carboxymethyl cellulose, ara, CMC-Na.
Pērā i te methyl cellulose, ka taea te whakamahi i te carboxymethyl cellulose hei surfactant mo nga rawa whakaahuru me te hei here mo te wa poto mo nga mea whakaahuru.
Ko te konutai carboxymethyl cellulose he polyelectrolyte waihanga, na reira ka taea te whakamahi hei dispersant me te whakapumau mo te paru whakaahuru me te castables, a ko te mea hoki he herea waro tino pai mo te wa poto.Kei a ia nga painga e whai ake nei:
1. Ka taea e te Carboxymethyl cellulose te whakauru pai ki runga i te mata o nga matūriki, he pai te whakauru me te hono atu ki nga matūriki, kia taea ai te whakaputa i nga waahi whakaahuru kaha;
2. I te mea ko te carboxymethyl cellulose he electrolyte polymer anionic, ka taea e ia te whakaiti i te taunekeneke i waenga i nga matūriki i muri i te whakauru ki runga i te mata matūriki, me te mahi hei dispersant me te colloid tiaki, na te whakapai ake i te kiato me te kaha o te hua me te whakaiti i te Inhomogeneity afterburning o hanganga whakahaere;
3. Ma te whakamahi i te carboxymethyl cellulose hei here, kaore he pungarehu i muri i te wera, he iti rawa nga mea whakarewa iti, kaore e pa ki te paanga o te ratonga o te hua.
Nga waahanga hua
1. Ko te CMC he ma, he kowhai kowhai ranei te paura kirikiri, he kore reka, he kakara, he paitini, he ngawari ki te wairewa i roto i te wai, ka hangai he colloid puhoi marama, a he kupapa, he kawakore te otinga.Ka taea te rongoa mo te wa roa me te kore e paheketanga, ka pumau ano hoki i raro i te pāmahana iti me te ra.Heoi, na te tere o te huringa o te pāmahana, ka rereke te waikawa me te kawakore o te otinga.I raro i te awe o nga hihi ultraviolet me nga microorganisms, ka puta ano te hydrolysis, te oxidation ranei, ka heke te viscosity o te otinga, tae noa ki te otinga ka pirau.Mena ka roa te rongoa o te rongoa, ka taea te kowhiri i nga rongoa e tika ana, penei i te formaldehyde, te phenol, te waikawa benzoic, me nga pūhui mercury waro.
2. He rite te CMC ki etahi atu polymer electrolytes.Ka memeha, ka pupuhi i te tuatahi, ka piri nga matūriki ki a raua ano hei hanga kiriata, roopu viscose ranei, kia kore ai e marara, engari he puhoi te rewa.Na reira, i te wa e whakarite ana i tana wairewa wai, mena ka taea te whakamakuku i nga matūriki i te tuatahi, ka tino piki ake te tere o te whakakorenga.
3. He hygroscopic te CMC.Ko te makuku toharite o te CMC i roto i te hau ka piki ake i te pikinga o te pāmahana hau me te heke ki te piki o te pāmahana hau.A, no te te pāmahana toharite o te pāmahana rūma he 80%-50%, ko te makuku taurite kei runga ake i te 26%, me te makuku hua iti iho i te 10%.Na reira, me aro nui ki te makuku-tohu te kohinga hua me te rokiroki.
4. Ko nga tote whakarewa taumaha penei i te konutea, te parahi, te mata, te konumohe, te hiriwa, te rino, te tine, te chromium, me etahi atu, ka puta te rerenga i roto i te wairewa wai CMC, a ka taea ano te rewa ano te rerenga i roto i te konutai hydroxide me te wairewa haukinia. engari mo te acetate mata matua.
5. Ma te waikawa pararopi, ma te waikawa pararopi ranei ka heke te rerenga o tenei hua.He rereke te ahuatanga o te rerenga na te momo me te kukū o te waikawa.Ko te tikanga, ka heke te ua i raro i te pH 2.5, ka taea te whakahoki mai i muri i te whakakorenga ma te taapiri alkali.
6. Ko nga tote penei i te konupūmā, te konupora me te tote tepu kaore he paanga o te rerenga ki te otinga CMC, engari ka pa ki te whakahekenga o te pokey.
7. He hototahi te CMC ki etahi atu kapia wairewa, whakangawari me te kapia.
8. Ko te kiriata i tuhia e CMC ka rumakina ki te acetone, benzene, butyl acetate, carbon tetrachloride, castor hinu, hinu witi, ethanol, ether, dichloroethane, petroleum, methanol, methyl acetate, methyl ethyl ether i te pāmahana rūma Ketone, toluene, turpentine , xylene, hinu pīnati, me ētahi atu e kore pea e huri i roto i te 24 haora
Te wa tuku: Hanuere-03-2023