Sodium carboxymethyl cellulose (CMC)imhando ye cellulose yakagadzirwa ne carboxymethyl, inozivikanwawo se cellulose gum, uye ndiyo inonyanya kukosha ionic cellulose gum. CMC inowanzo kuve anionic polymer compound inowanikwa nekuita natural cellulose ne caustic alkali ne monochloroacetic acid. Kurema kwemolecular yekombiyi kunobva pamakumi emamiriyoni kusvika kumamiriyoni akati wandei.
【Zvinhu】Upfu huchena, hahunhuhwi, hunonyungudika mumvura kuti hugadzire mhinduro ine viscosity yakawanda, hahunyungudike muethanol nezvimwe zvinonyungudutsa.
【Kushandiswa】Ine mabasa ekumisa uye emulsification, kubatana kwakanaka uye kuramba munyu, uye inozivikanwa se "industrial monosodium glutamate", iyo inoshandiswa zvakanyanya.
Kugadzirira kweCMC
Zvichienderana ne etherification medium yakasiyana, kugadzirwa kweCMC mumaindasitiri kunogona kukamurwa muzvikamu zviviri: nzira inobva mumvura uye nzira inobva mu solvent. Nzira yekushandisa mvura se reaction medium inonzi water-borne method, iyo inoshandiswa kugadzira alkaline medium uye low-grade CMC; nzira yekushandisa organic solvent se reaction method inonzi solvent method, iyo yakakodzera kugadzirwa kweCMC yepakati neyepamusoro. Maitiro ese aya anoitwa mu kneader, iyo iri ye kneading process uye ndiyo nzira huru yekugadzira CMC pari zvino.
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nzira yemvura
Nzira yekushandiswa nemvura inzira yekutanga yekugadzira maindasitiri, iyo ndeyekugadzirisa alkali cellulose ne etherifying agent mumamiriro ezvinhu e free alkali nemvura. Munguva ye alkaliization uye etherification process, hapana organic medium mu system. Zvinodiwa zvemichina yekushandiswa nemvura zviri nyore, nekudyara mari shoma uye mutengo wakaderera. Dambudziko nderekuti pane kushomeka kwemvura yakawanda, uye kupisa kunokonzerwa ne reaction kunowedzera tembiricha, izvo zvinokurumidzisa kumhanya kwe side reactions, zvichikonzera kushomeka kwe etherification uye kunaka kwezvigadzirwa. Nzira iyi inoshandiswa kugadzirira zvigadzirwa zve CMC zvepakati nepazasi, zvakaita se detergents, textile size agents, nezvimwewo.
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nzira yekunyungudutsa
Nzira yekunyungudutsa inozivikanwawo senzira yekunyungudutsa yeorganic. Chinhu chikuru chayo ndechekuti alkalization uye etherification reactions zvinoitwa pasi pemamiriro ekuti organic solvent inoshandiswa senzira yekunyungudutsa (diluent). Zvichienderana nehuwandu hwekunyungudutsa kwereaction, yakakamurwa kuva nzira yekukanya uye nzira yekutsvedza. Nzira yekunyungudutsa yakafanana nemaitiro ekuita kwenzira yekunyungudutsa yemvura, uye inewo matanho maviri ealkalization uye etherification, asi nzira yekunyungudutsa yematanho maviri aya yakasiyana. Nzira yekunyungudutsa inobvisa maitiro aripo munzira yekunyungudutsa, sekunyikwa, kusvinwa, kupwanywa, kukwegura, nezvimwewo, uye alkalization uye etherification zvese zvinoitwa mukneader. Dambudziko nderekuti kudzora tembiricha kwakaderera, nzvimbo inodiwa uye mutengo wakakwira. Ehe, pakugadzira marongero akasiyana emidziyo, zvakakosha kudzora tembiricha yesystem, nguva yekudyisa, nezvimwewo, kuitira kuti zvigadzirwa zvine mhando yepamusoro uye mashandiro azvo zvigone kugadzirwa. Chati yekuyerera kwemaitiro ayo inoratidzwa muMufananidzo 2.
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Mamiriro Ekugadzirira SodiumCarboxymethyl Cellulosekubva kuZvigadzirwa zvekurima
Zvibereko zvezvirimwa zvine hunhu hwekusiyana-siyana uye nyore kuwana, uye zvinogona kushandiswa zvakanyanya sezvinhu zvekugadzira CMC. Parizvino, zvinhu zvekugadzira zveCMC zvinonyanya kucheneswa, zvinosanganisira donje, mucassava, mushwa, bamboo, mushwa, nezvimwewo. Zvisinei, nekusimudzirwa kuri kuitwa kweCMC munzvimbo dzese dzehupenyu, pasi pezviwanikwa zviripo zvekugadzirisa zvinhu, mashandisirwo ezvinhu zvakachipa uye zvakafara zvezvinhu zvekugadzira CMC achava chinhu chikuru.
Maonero
Sodium carboxymethyl cellulose inogona kushandiswa se emulsifier, flocculant, thickener, chelating agent, water-retaining agent, adhesive, size agent, film-forming material, nezvimwewo. Inoshandiswa zvakanyanya mumagetsi, dehwe, mapurasitiki, kudhinda, ceramics, kushandiswa kwezuva nezuva kwemakemikari nedzimwe nzvimbo, uye nekuda kwekushanda kwayo kwakanaka uye kushandiswa kwakasiyana-siyana, ichiri kugadzira nzvimbo itsva dzekushandisa. Mazuva ano, pasi pekupararira kwakapararira kwepfungwa yekugadzira makemikari akasvibirira, tsvakiridzo yekunze pamusoro peCMCTekinoroji yekugadzirira inotarisa pakutsvaga zvinhu zvechisikigo zvakachipa uye zviri nyore kuwana uye nzira itsva dzekuchenesa CMC. Senyika ine zviwanikwa zvakawanda zvekurima, nyika yangu iri mukuchinja kwe cellulose. Panyaya yetekinoroji, ine zvakanakira zvezvinhu zvechisikigo, asi kunewo matambudziko akadai sekusaenderana kwemaitiro ekugadzirira kunokonzerwa nemarudzi akasiyana e biomass cellulose fibers uye musiyano mukuru muzvikamu. Kuchine kushomeka mukukwana kwekushandiswa kwezvinhu zve biomass, saka zvimwe zvinofanirwa kuitwa munzvimbo idzi zvinoda kutsvagurudzwa kwakakura.
Nguva yekutumira: Kubvumbi-25-2024