Tsarin samarwa da kewayon amfani da sodium carboxymethyl cellulose (CMC)

Sodium carboxymethyl cellulose (CMC) wani sinadari ne mai kama da anionic, madaidaiciya, cellulose ether mai narkewa cikin ruwa, wanda aka samo daga cellulose na halitta da chloroacetic acid ta hanyar gyaran sinadarai. Maganin ruwansa yana da ayyukan kauri, samar da fim, haɗawa, riƙe ruwa, kariyar colloidal, emulsification da dakatarwa, kuma ana iya amfani da shi azaman flocculant, chelating agent, emulsifier, thickener, wakilin riƙe ruwa, wakilin girma, kayan samar da fim, da sauransu, wanda ake amfani da shi sosai a abinci, magani, kayan lantarki, magungunan kashe kwari, fata, robobi, bugawa, yumbu, masana'antar sinadarai ta yau da kullun da sauran fannoni.

Sodium carboxymethyl cellulose gabaɗaya foda ne mai tauri, wani lokacin granular ko fibrous, fari ko rawaya mai haske a launi, babu wani wari na musamman, abu ne mai sinadarai na macromolecular, yana da ƙarfi danshi, yana iya narkewa a cikin ruwa, a cikin ruwa don samar da ruwan da ke da ƙazanta mai haske. Ba ya narkewa a cikin ruwan gabaɗaya, kamar ethanol, ether, chloroform da benzene, amma ana iya narkewa a cikin ruwa, wanda aka narkar kai tsaye a cikin ruwa yana da ɗan jinkiri, amma narkewar har yanzu yana da girma sosai, kuma ruwan yana da ɗanɗano. Tauri a cikin muhalli gabaɗaya ya fi karko, saboda yana da takamaiman sha ruwa kuma danshi, a cikin busasshiyar muhalli, ana iya adana shi na dogon lokaci.

① Tsarin samarwa

1. Hanyar matsakaici ta ruwa

Tsarin samar da ruwa da kwal wani tsari ne na farko a fannin shirya sinadarin sodium carboxymethyl cellulose a masana'antu. A cikin wannan tsari, sinadarin alkali cellulose da sinadarin etherifying suna amsawa a cikin wani ruwa mai dauke da iskar oxygen oxide ions kyauta, kuma ana amfani da ruwa a matsayin hanyar amsawa a cikin tsarin amsawa, ba tare da sinadaran sinadarai na halitta ba.

2. Hanyar narkewa

Hanyar narkewar sinadarai hanya ce ta narkewar sinadarai ta halitta, wacce ake samarwa bisa tsarin ruwa mai narkewa don maye gurbin ruwa da sinadarin narkewar sinadarai ta halitta a matsayin hanyar amsawa. Tsarin alkali da etherification na alkali cellulose da monochloroacetic acid a cikin wani sinadarin narkewar sinadarai ta halitta. Dangane da adadin sinadarin amsawar sinadarai, ana iya raba shi zuwa hanyar hadawa da kuma hanyar hadawa. Adadin sinadarin narkewar sinadarai ta halitta da ake amfani da shi a cikin hanyar hadawa ya fi girma fiye da na hanyar hadawa, kuma adadin sinadarin narkewar sinadarai ta halitta da ake amfani da shi a cikin hanyar hadawa shine rabon nauyin yawan sinadarin cellulose, yayin da adadin sinadarin narkewar sinadarai ta halitta da ake amfani da shi a cikin hanyar hadawa shine rabon nauyin yawan sinadarin cellulose. Lokacin da aka shirya sodium carboxymethyl cellulose ta hanyar hadawa da hanyar hadawa, sinadarin narkewar sinadarai ta halitta yana cikin yanayin rage ko dakatarwa a cikin tsarin, don haka ana kiran hanyar hadawa da hanyar hadawa da hanyar hadawa.

3. Hanyar slurry

Hanyar slurry ita ce sabuwar fasahar samar da sodium carboxymethyl cellulose. Hanyar slurry ba wai kawai za ta iya samar da sodium carboxymethyl cellulose mai tsarki ba, har ma za ta samar da sodium carboxymethyl cellulose mai babban matakin maye gurbin da kuma maye gurbin iri ɗaya. Tsarin samar da hanyar slurry kamar haka ne: ana aika ɓangaren auduga da aka niƙa foda zuwa injin alkali mai tsaye wanda ke ɗauke da isopropyl alcohol, kuma an ƙara maganin sodium hydroxide yayin haɗawa, kuma zafin alkaline yana kusan 20℃. Bayan alkali, ana tura kayan zuwa injin etherifying a tsaye, kuma an ƙara maganin isopropyl alcohol na chloroacetic acid, kuma zafin etherifying yana kusan 65℃. Dangane da takamaiman amfani da samfurin da buƙatun inganci, ana iya daidaita yawan alkalization, lokacin alkalization, adadin wakilin etherifying da lokacin etherification da sauran sigogin tsari.

② Tsarin aikace-aikacen

1. CMC ba wai kawai kyakkyawan mai daidaita emulsifying da kauri bane a aikace-aikacen abinci, har ma yana da kyakkyawan kwanciyar hankali na daskarewa da narkewa, kuma yana iya inganta ɗanɗanon samfurin da kuma tsawaita lokacin ajiya.

2. A cikin sabulun wanke-wanke, ana iya amfani da CMC a matsayin maganin sake mayar da najasa, musamman don tasirin sake mayar da najasa ta roba, wanda ya fi carboxymethyl fiber kyau sosai.

3. A cikin haƙa mai, ana iya amfani da shi don kare mai. Rijiyoyi a matsayin mai daidaita laka, wakili mai riƙe ruwa, adadin kowace rijiyar mai shine Rijiyoyi masu zurfi guda 2 ~ 3, Rijiyoyi masu zurfi guda 5 ~ 6.

4. Ana amfani da shi a masana'antar yadi a matsayin mai auna girma, bugu da rini mai kauri, bugu da kuma ƙara tauri.

5. Ana amfani da shi azaman maganin hana sanyi, emulsifier, wargazawa, wakili mai daidaita launi, manne, zai iya sa ɓangaren fenti mai ƙarfi ya rarraba daidai a cikin ruwan da ke narkewa, don kada fenti ya daɗe, amma kuma a yi amfani da shi a cikin putty.

6. A matsayin flocculant wajen cire sinadarin calcium ions fiye da sodium gluconate, ya fi tasiri, a matsayin musayar cation, ƙarfin musayar har zuwa 1.6ml/g.

7. A masana'antar takarda da ake amfani da ita azaman mai auna takarda, tana iya inganta ƙarfi da danshi na juriyar takarda da mai, sha tawada da juriyar ruwa sosai.

8. A matsayin hydrosol a cikin kayan kwalliya, wanda ake amfani da shi azaman mai kauri a cikin man goge baki, yawan sa shine kusan kashi 5%.

Mai kera da mai samar da kayayyaki na Carboxymethyl Cellulose (CMC) | EVERBRIGHT (cnchemist.com)