Carboxymethyl cellulose (Sodium Carboxymethyl Cellulose) e kiia ana ko CMC, he puhui polymer colloid kaha o te mata, he ahua o te hongi kore, reka, kore-paitini wai-wairewa cellulose pärönaki, he mea hanga o te miro absorbent i roto i te maimoatanga tinana-matū.Ko te kaihere cellulose organic he ahua o te cellulose ether, a ko te tote konutai e whakamahia ana, no reira me kii tona ingoa katoa 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, no reira ka taea te whakamahi hei dispersant me te whakapumau mo nga slurries refractory me te castables, a he mea hei herenga waro pai-nui.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, te whakauru me te hono pai i nga matūriki, kia taea ai te whiwhi i te tinana refractory kaha ake;
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 o nga matūriki, me te mahi i te mahi o te dispersant me te colloid tiaki, na te whakapai ake i te kiato me te kaha o te hua me te whakaiti. muri-tahu.Te koretake o te hanganga whakahaere;
3. Ma te whakamahi i te carboxymethyl cellulose hei here, kaore he pungarehu i muri i te wera, he iti noa nga matū rewa iti, kaore e pa ki te paanga o te whakamahinga o te hua.
Nga waahanga hua
1. Ko te CMC he ma, he paku kowhai ranei he paura kirikiri kirikiri, he reka, he kakara, he paitini, he ngawari ki te wairewa i roto i te wai, ka hangai he colloid puhoi marama, he kupapa, he paku 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 huri te waikawa me te kawakore o te otinga.I raro i te awe o te radiation ultraviolet me nga microorganisms, ka puta ano te hydrolysis, te oxidation ranei, ka heke te viscosity o te otinga, a ka kino te otinga.Mena ka roa te rongoa, ka taea te kowhiri i nga rongoa pai penei i te formaldehyde, te phenol, te waikawa benzoic, nga pūhui mercury waro, me etahi atu.
2. He rite te CMC ki etahi atu polymer electrolytes.Ka memeha, ka puta tuatahi he ahua huamo, ka piri nga matūriki ki a raua ano hei hanga kiriata, viscose ranei, e kore e taea te marara, engari ka memeha haere.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.I roto i te hau, ka piki te wai toharite o te CMC me te piki o te pāmahana hau me te heke ki te piki o te pāmahana hau.A, no te te pāmahana toharite o te pāmahana rūma ko 80%-50%, te ihirangi wai taurite kei runga ake 26%, me te ihirangi wai hua 10% iti iho ranei.Na reira, me aro nui ki te makuku-tohu te kohinga hua me te rokiroki.
4. Ko te konutea, ko te parahi, ko te mata, ko te konumohe, ko te hiriwa, ko te rino, ko te tine, ko te chromium me etahi atu tote whakarewa taumaha ka taea te whakaheke i te wairewa wai CMC.Haunga te acetate mata-a-tote, ka taea tonu te rewa te para i roto i te wairewa konutai konutai, i te wairewa ammonium hydroxide ranei..
5. Ma te waikawa pararopi, ma te waikawa pararopi ranei ka heke te rerenga o tenei hua.He rereke te ahua o te rerenga ki te momo me te kukū o te waikawa.Ko te tikanga, ka puta te rerenga i te mea kei raro te pH i te 2.5, ka taea te whakahoki mai i muri i te whakakorenga me te kawakore.
6. I roto i nga tote penei i te konupūmā, te konupora me te tote tepu, kaore he paanga o te rerenga i runga i te otinga CMC, engari ka pa ki te whakahekenga pokey.
7. He hototahi te CMC ki etahi atu kapia wairewa, whakangawari me te kapia.
8. Ko nga kiriata i tangohia mai i te CMC, ka rumakina ki te acetone, te benzene, te butyl acetate, te tetrachloride waro, te hinu castor, te hinu witi, te ethanol, te ether, te dichloroethane, te hinu, te methanol, te methyl acetate, te methyl ethyl acetate i te pāmahana rūma Ketone, toluene, turpentine, Ko te xylene, te hinu pīnati, me ētahi atu ka taea te whakarereke i roto i te 24 haora
Wā tuku: Nov-07-2022