Carboxymethylcellulose (CMC) chiwedzerwa chinoshanda chinoshandiswa zvakanyanya mumaindasitiri akasiyana sechikafu, mishonga, kugadzira mapepa, machira, uye migodhi.Inotorwa kubva kune yakasikwa cellulose, iyo yakawanda mumiti uye zvimwe zvinhu zvehupenyu.CMC i polymer inonyungudika nemvura ine yakasarudzika zvivakwa zvinosanganisira viscosity, hydration, adhesion uye adhesion.
CMC maitiro
CMC ndeye cellulose inobuda iyo inogadziriswa kemikari nekuunza mapoka ecarboxymethyl muchimiro chayo.Kugadziridzwa uku kunowedzera kunyungudika uye hydrophilicity ye cellulose, nekudaro inovandudza mashandiro.Zvimiro zveCMC zvinoenderana nedhigirii rayo rekutsiva (DS) uye huremu hwemamorekuru (MW).DS inotsanangurwa seavhareji nhamba yemapoka e-carboxymethyl pachikamu cheglucose mumusana we cellulose, nepo MW ichiratidza hukuru uye kugoverwa kwemaketani epolymer.
Chimwe chezvinhu zvakakosha zveCMC kunyungudika kwayo kwemvura.CMC inonyungudika nyore mumvura, ichigadzira viscous solution ine pseudoplastic properties.Iyi rheological maitiro anokonzerwa nekudyidzana kwepakati pakati peCMC mamorekuru, zvichikonzera kudzikira kweviscosity pasi pekunetseka kweshear.Iyo pseudoplastic chimiro cheCMC mhinduro inoita kuti ive yakakodzera kune dzakasiyana siyana dzekushandisa senge thickeners, stabilizers, uye kumisa vamiririri.
Chimwe chakakosha hunhu hweCMC kugona kwayo kugadzira firimu.CMC mhinduro dzinogona kukandwa mumafirimu ane yakanakisa mekiniki zvivakwa, pachena, uye kuchinjika.Aya mafirimu anogona kushandiswa semajasi, laminates uye kurongedza zvinhu.
Uye zvakare, CMC ine yakanaka yekubatanidza uye yekubatanidza zvivakwa.Inoumba chisungo chakasimba chine nzvimbo dzakasiyana-siyana, kusanganisira huni, simbi, plastiki uye machira.Ichi chivakwa chakonzera kushandiswa kweCMC mukugadzira machira, anonamira neingi.
CMC viscosity
Iyo viscosity yeCMC mhinduro inoenderana nezvakati wandei zvinhu zvakaita sekutarisa, DS, MW, tembiricha, uye pH.Kazhinji, mhinduro dzeCMC dzinoratidza maviscosities akakwirira pamatunhu akakwirira, DS, uye MW.Viscosity inowedzerawo nekudzikira tembiricha uye pH.
Iyo viscosity yeCMC mhinduro inodzorwa nekudyidzana pakati pe polymer cheni uye solvent mamorekuru mune mhinduro.CMC mamorekuru anodyidzana nemamorekuru emvura kuburikidza nehydrogen zvisungo, achigadzira hydration goko rakatenderedza polymer cheni.Iyi hydration shell inoderedza kufamba kwemaketani epolymer, nekudaro ichiwedzera viscosity yemhinduro.
Iyo rheological maitiro eCMC mhinduro inoratidzwa nekuyerera macurves, ayo anotsanangura hukama pakati pekuveura kushushikana uye shear mwero wemhinduro.CMC mhinduro dzinoratidza dzisiri-Newtonian kuyerera maitiro, zvinoreva kuti viscosity yavo inoshanduka neshear rate.Pane yakaderera shear rates, viscosity yeCMC mhinduro yakakwira, nepo pakakwirira shear mitengo, viscosity inoderera.Uku kutetepa hunhu uku kunokonzerwa nemacheni epolymer kurongedza uye kutambanudza pasi pekunetseka kwekugera, zvichikonzera kuderedzwa kwema intermolecular masimba pakati pecheni uye kudzikira kweviscosity.
Kushandiswa kweCMC
CMC inoshandiswa zvakanyanya mundima dzakasiyana nekuda kweiyo yakasarudzika zvimiro uye rheological maitiro.Muindasitiri yechikafu, CMC inoshandiswa seyakakora, inosimbisa, emulsifier uye inovandudza magadzirirwo.Inowedzerwa kune zvekudya zvakaita seaizikirimu, zvinwiwa, masosi uye zvinhu zvakabikwa kuti zvivandudze magadzirirwo azvo, kuwirirana uye hupenyu hwesherufu.CMC inodzivirirawo kuumbwa kweaizi makristasi muzvikafu zvakaomeswa, zvichikonzera chigadzirwa chakatsetseka, chine cream.
Muindasitiri yemishonga, CMC inoshandiswa sebhainda, disintegrant uye inodzorwa kuburitsa mumiriri mukuumbwa kwehwendefa.Kuvandudza kusimba uye fluidity yehupfu uye chengetedza kufanana uye kugadzikana kwemapiritsi.Nekuda kweiyo mucoadhesive uye bioadhesive zvivakwa, CMC inoshandiswawo sechinhu chinobatsira mune ophthalmic, nasal, uye nemuromo maumbirwo.
Muindasitiri yemapepa, CMC inoshandiswa seyakanyorova magumo ekuwedzera, coating binder uye sizing press agent.Inonatsiridza kuchengetwa kwe pulp uye mvura, inowedzera simba remapepa uye density, uye inopa nzvimbo yakatsetseka uye inopenya.CMC inoshandawo semvura neoiri chipingamupinyi, ichidzivirira inki kana zvimwe zvinwiwa kubva papepa.
Muindasitiri yemachira, CMC inoshandiswa senge saizi agent, kudhinda thickener, uye dhayi yekubatsira.Inonatsiridza fiber adhesion, inosimudzira kupinda kwemavara uye kugadzirisa, uye inoderedza kukwenya uye makwinya.CMC inopawo kupfava uye kuoma kune jira, zvichienderana neDS uye MW yepolymer.
Muindasitiri yemigodhi, CMC inoshandiswa se flocculant, inhibitor uye rheology modifier mukugadziriswa kwemaminerari.Inovandudza kugadzirisa uye kusefa kwezvakaoma, inoderedza kupatsanurwa kubva kumarasha gangue, uye inodzora kumisa viscosity uye kugadzikana.CMC zvakare inoderedza kukanganisa kwezvakatipoteredza kwemaitiro emigodhi nekuderedza kushandiswa kwemakemikari ane chepfu nemvura.
mukupedzisa
CMC inogoneka uye yakakosha yekuwedzera inoratidza yakasarudzika zvivakwa uye viscosity nekuda kwechimiro chemakemikari uye kusangana nemvura.Kunyungudika kwayo, kugona kugadzira firimu, kusunga uye kunamatira zvivakwa kunoita kuti ive yakakodzera kune akasiyana mashandisirwo muzvikamu zvekudya, zvemishonga, mapepa, machira uye emigodhi.Iyo viscosity yeCMC mhinduro inogona kudzorwa nezvinhu zvakati wandei, senge kusungwa, DS, MW, tembiricha, uye pH, uye inogona kuratidzwa neiyo pseudoplastic uye shear-kutetepa maitiro.CMC ine mhedzisiro yakanaka pamhando, kushanda nesimba uye kusimba kwezvigadzirwa nemaitiro, zvichiita kuti ive chikamu chakakosha cheindasitiri yemazuva ano.
Nguva yekutumira: Sep-25-2023