Sodium carboxymethyl cellulose (CMC) wani anionic, madaidaiciya sarkar, ruwa mai narkewa cellulose ether, wanda aka samu daga halitta cellulose da chloroacetic acid ta hanyar sinadaran gyara.Its mai ruwa bayani yana da ayyuka na thickening, film forming, bonding, ruwa riƙewa, colloidal kariya, emulsification da dakatarwa, kuma za a iya amfani da matsayin flocculant, chelating wakili, emulsifier, thickener, ruwa retaining wakili, sizing wakili, fim kafa abu, da dai sauransu ., wanda aka fi amfani dashi a cikin abinci, magunguna, kayan lantarki, magungunan kashe qwari, fata, robobi, bugu, yumbu, masana'antar sinadarai ta yau da kullun da sauran fannoni.

Sodium carboxymethyl cellulose ne gaba ɗaya foda m, wani lokacin granular ko fibrous, fari ko haske rawaya a launi, babu musamman wari, shi ne macromolecular sinadaran abu, yana da karfi wettability, iya narke a cikin ruwa, a cikin ruwa don samar da wani danko bayani tare da high. bayyana gaskiya.Insoluble a general Organic mafita, irin su ethanol, ether, chloroform da benzene, amma za a iya narkar da a cikin ruwa, kai tsaye narkar da a cikin ruwa ne in mun gwada da jinkirin, amma solubility ne har yanzu babba, da ruwaye bayani yana da wani danko.M a cikin yanayin gabaɗaya ya fi kwanciyar hankali, saboda yana da takamaiman shayar ruwa da zafi, a cikin bushewar yanayi, ana iya kiyaye shi na dogon lokaci.

① Tsarin samarwa

1. Hanyar ruwa mai matsakaici

Tsarin ruwa-kwal tsari ne mai gwadawa da wuri a cikin shirye-shiryen masana'antu na sodium carboxymethyl cellulose.A cikin wannan tsari, da alkali cellulose da etherifying wakili amsa a cikin wani ruwa bayani dauke da free oxygen oxide ions, da ruwa da ake amfani da matsayin dauki matsakaici a dauki tsari, ba tare da Organic kaushi.

2. Hanyar narkewa

Hanyar narkewa ita ce hanyar samar da ƙarfi, wanda shine tsarin samarwa wanda aka haɓaka akan hanyar matsakaicin ruwa don maye gurbin ruwa tare da sauran ƙarfi a matsayin matsakaicin amsawa.Tsarin alkalization da etherification na alkali cellulose da monochloroacetic acid a cikin wani kwayoyin kaushi.Dangane da adadin matsakaicin amsawa, ana iya raba shi zuwa hanyar kneading da hanyar slurry na iyo.Adadin abubuwan da ake amfani da su a cikin hanyar pulping ya fi girma fiye da na hanyar ƙwanƙwasa, kuma adadin abubuwan da ake amfani da su a cikin hanyar kneading shine rabo na girman nauyin adadin cellulose, yayin da adadin kuzarin da aka yi amfani da shi. a cikin hanyar pulping shine rabon girman girman adadin cellulose.Lokacin da sodium carboxymethyl cellulose aka shirya ta yin iyo slurry hanya, da dauki m ne a cikin wani slurry ko dakatar jihar a cikin tsarin, don haka iyo slurry hanya kuma ake kira da dakatar hanya.

3. Hanyar slurry

Hanyar slurry ita ce sabuwar fasaha don samar da sodium carboxymethyl cellulose.Hanyar slurry ba wai kawai ta samar da babban tsabta sodium carboxymethyl cellulose ba, amma kuma samar da sodium carboxymethyl cellulose tare da babban canji digiri da uniform maye.Tsarin samar da hanyar slurry yana da kusan kamar haka: ɓangaren litattafan almara wanda aka niƙa a cikin foda ana aika shi zuwa injin alkalizing na tsaye sanye da barasa na isopropyl, kuma maganin sodium hydroxide da aka ƙara yayin haɗuwa yana alkalized, kuma zafin jiki na alkalizing yana kusan 20. ℃.Bayan alkalization, kayan da aka pumped zuwa a tsaye etherifying inji, da kuma isopropyl barasa bayani na chloroacetic acid da aka kara, da etherifying zafin jiki ne game da 65 ℃.Dangane da takamaiman amfani da samfur da buƙatun inganci, ƙaddamarwar alkalization, lokacin alkalization, adadin etherifying wakili da lokacin etherification da sauran sigogin tsari za a iya daidaita su.

② Iyakar aikace-aikace

1. CMC ba kawai mai kyau emulsifying stabilizer da thickener a abinci aikace-aikace, amma kuma yana da kyau kwarai daskarewa da narkewa da kwanciyar hankali, kuma zai iya inganta samfurin dandano da kuma mika ajiya lokaci.

2. A cikin wanka, CMC za a iya amfani da matsayin anti-fouling redeposition wakili, musamman ga hydrophobic roba fiber masana'anta anti-fouling redeposition sakamako, muhimmanci fiye da carboxymethyl fiber.

3. A cikin hakar mai za a iya amfani da shi don kare rijiyoyin mai azaman laka stabilizer, mai kula da ruwa, adadin kowane rijiyar mai shine 2 ~ 3t rijiyoyin mara zurfi, zurfin rijiyoyin 5 ~ 6t.

4. An yi amfani da shi a masana'antar yadi azaman wakili na sizing, bugu da rini slurry thickener, yadi bugu da stiffening gama.

5. An yi amfani da shi azaman wakili na anti-setling, emulsifier, dispersant, wakili mai daidaitawa, m, na iya yin ɓangaren m na fenti a ko'ina a cikin sauran ƙarfi, don haka ba a ba da fenti na dogon lokaci ba, amma kuma ana amfani dashi a cikin putty. .

6. A matsayin flocculant a cikin kau da alli ions fiye da sodium gluconate mafi tasiri, a matsayin cation musayar iya aiki har zuwa 1.6ml/g.

7. A cikin masana'antun takarda da aka yi amfani da su azaman ma'auni na takarda, zai iya inganta ƙarfin bushewa da rigar ƙarfin takarda da juriya na man fetur, shayar tawada da juriya na ruwa.

8. A matsayin hydrosol a cikin kayan shafawa, ana amfani dashi azaman wakili mai kauri a cikin man goge baki, adadin sa shine kusan 5%.

Wholesale Carboxymethyl Cellulose (CMC) Maƙera da Supplier |EVERBRIGHT (cchemist.com)