Thepa le viscosity ea CMC

Carboxymethylcellulose (CMC) ke tlatsetso e sebetsang e sebelisoang haholo liindastering tse fapaneng joalo ka lijo, meriana, ho etsa pampiri, masela le meepo. E tsoa ho cellulose ea tlhaho, e tletseng limela le lisebelisoa tse ling tsa likokoana-hloko. CMC ke polymer e qhibilihang ka metsing e nang le thepa e ikhethang e kenyelletsang viscosity, hydration, adhesion le adhesion.

Litšobotsi tsa CMC

CMC ke motsoako oa selulose o fetotsoeng ka lik'hemik'hale ka ho hlahisa lihlopha tsa carboxymethyl sebopeho sa eona. Phetoho ena e ntlafatsa ho qhibiliha le hydrophilicity ea selulose, ka hona e ntlafatsa ts'ebetso. Thepa ea CMC e itšetlehile ka tekanyo ea eona ea ho fetola (DS) le boima ba molek'hule (MW). DS e hlalosoa e le palo e tloaelehileng ea lihlopha tsa carboxymethyl ka yuniti ea tsoekere e mokokotlong oa cellulose, ha MW e bonts'a boholo le kabo ea liketane tsa polymer.

E 'ngoe ea likarolo tsa bohlokoa tsa CMC ke ho qhibiliha ha eona metsing. CMC e qhibiliha habonolo ka metsing, e etsa tharollo ea viscous e nang le thepa ea pseudoplastic. Boitšoaro bona ba rheological bo bakoa ke tšebelisano ea limolek'hule lipakeng tsa limolek'hule tsa CMC, e leng se bakang ho fokotseha ha viscosity tlasa khatello ea ho kuta. Sebopeho sa pseudoplastic sa tharollo ea CMC se li etsa hore li tšoanelehe bakeng sa lits'ebetso tse fapaneng tse kang li-thickeners, stabilizers, le li-agent tse emisang.

Tšobotsi e 'ngoe ea bohlokoa ea CMC ke bokhoni ba eona ba ho etsa lifilimi. Litharollo tsa CMC li ka kenngoa lifiliming tse nang le thepa e ntle haholo ea mochini, pepeneneng le bonolo. Lifilimi tsena li ka sebelisoa e le liaparo, li-laminate le lisebelisoa tsa ho paka.

Ntle le moo, CMC e na le thepa e ntle ea tlamahano le tlamahano. E theha maqhama a matla a nang le libaka tse fapaneng, ho kenyelletsa lehong, tšepe, polasetiki le lesela. Thepa ena e lebisitse tšebelisong ea CMC ha ho etsoa liphahlo, likhomaretsi le enke.

CMC viscosity

The viscosity ea litharollo tsa CMC e ipapisitse le lintlha tse 'maloa tse kang mahloriso, DS, MW, mocheso, le pH. Ka kakaretso, tharollo ea CMC e bonts'a li-viscosity tse phahameng maemong a holimo, DS, le MW. Viscosity e boetse e eketseha ka mocheso o fokotsehang le pH.

Viscosity ea tharollo ea CMC e laoloa ke tšebelisano pakeng tsa liketane tsa polymer le limolek'hule tsa solvent ka tharollo. Limolek'hule tsa CMC li sebelisana le limolek'hule tsa metsi ka li-bond tsa haedrojene, li etsa khetla ea hydration ho potoloha liketane tsa polymer. Khetla ena ea hydration e fokotsa ho sisinyeha ha liketane tsa polymer, kahoo e eketsa viscosity ea tharollo.

Boitšoaro ba rheological ba tharollo ea CMC bo khetholloa ke li-curve tsa phallo, tse hlalosang kamano pakeng tsa khatello ea ho kuta le sekhahla sa ho kuta sa tharollo. Litharollo tsa CMC li bonts'a boits'oaro ba phallo e seng ea Newtonian, ho bolelang hore viscosity ea bona e fetoha ka sekhahla sa ho kuta. Ka litekanyetso tse tlase tsa ho kuta, viscosity ea tharollo ea CMC e phahame, ha ka litekanyetso tse phahameng tsa ho kuta, viscosity e fokotseha. Boitšoaro bona ba ho kuta moriri o mosesaane ke ka lebaka la liketane tsa polymer tse hokahanang le ho otlolla tlas'a khatello ea ho kuta, ho fella ka ho fokotseha ha matla a li-intermolecular pakeng tsa liketane le ho fokotseha ha viscosity.

Tšebeliso ea CMC

CMC e sebelisoa haholo mafapheng a fapaneng ka lebaka la thepa ea eona e ikhethang le boitšoaro ba rheological. Indastering ea lijo, CMC e sebelisoa e le motenya, stabilizer, emulsifier le ntlafatso ea sebopeho. E eketsoa lijong tse kang ice cream, lino, li-sauces le lintho tse halikiloeng ho ntlafatsa sebopeho sa tsona, ho ts'oara le ho phela shelf. CMC e boetse e thibela ho thehoa ha likristale tsa leqhoa lijong tse hatselitsoeng, ho fella ka sehlahisoa se boreleli, se monate.

Indastering ea meriana, CMC e sebelisoa e le setlamo se kopanyang, se senyang le se laoloang ho lokolloa ha matlapa. Ntlafatsa ho hatelloa le ho phalla ha phofo 'me u netefatse ho tšoana le botsitso ba matlapa. Ka lebaka la thepa ea eona ea sekhomaretsi le bioadhesive, CMC e boetse e sebelisoa e le e thusang ho ophthalmic, nko le molomo.

Indastering ea lipampiri, CMC e sebelisoa e le sehokelo se metsi, se tlamellang se tlamang le mochini oa khatiso oa sizing. E ntlafatsa ho boloka le ho ntša metsi, e eketsa matla a pampiri le ho teteana, 'me e fana ka sebaka se boreleli le se benyang. CMC e boetse e sebetsa joalo ka thibelo ea metsi le oli, e thibelang enke kapa lino tse ling ho kenella pampiring.

Indastering ea masela, CMC e sebelisoa e le sesebelisoa sa boholo, setenya sa khatiso, le se thusang ho daea. E ntlafatsa ho khomarela ha fiber, e ntlafatsa ho kenella ha mebala le ho lokisa, 'me e fokotsa khohlano le makukuno. CMC e boetse e fana ka bonolo le ho tiea ho lesela, ho itšetlehile ka DS le MW ea polymer.

Indastering ea merafo, CMC e sebelisoa e le flocculant, inhibitor le rheology modifier ts'ebetsong ea liminerale. E ntlafatsa ho lula le ho sefa ha lintho tse tiileng, e fokotsa karohano ho gangue ea mashala, 'me e laola ho fanyeha le botsitso. CMC e boetse e fokotsa kgahlamelo ya tikoloho ya tshebetso ya merafo ka ho fokotsa tshebediso ya dikhemikhale tse chefo le metsi.

ha re phethela

CMC ke tlatsetso e fapaneng le ea bohlokoa e bonts'ang thepa e ikhethang le viscosity ka lebaka la sebopeho sa eona sa lik'hemik'hale le tšebelisano le metsi. Ho qhibiliha ha eona, bokhoni ba ho etsa filimi, thepa ea ho tlama le ho khomarela e etsa hore e tšoanelehe bakeng sa lisebelisoa tse fapaneng makaleng a lijo, meriana, pampiri, masela le merafo. Viscosity ea litharollo tsa CMC e ka laoloa ke lintlha tse 'maloa, joalo ka ho tsepamisa maikutlo, DS, MW, mocheso, le pH,' me e ka khetholloa ka boits'oaro ba eona ba pseudoplastic le ho thiba ha shear. CMC e na le tšusumetso e ntle ho boleng, katleho le botsitso ba lihlahisoa le lits'ebetso, e e etsa karolo ea bohlokoa indastering ea sejoale-joale.