I-Cellulose ether yiklasi yeepolymers ezinyibilikayo zamanzi ezivela kwi-cellulose, eyona nxalenye yesakhiwo seendonga zesityalo. I-ether ye-cellulose ineempawu ezininzi ezizodwa, ezibandakanya ukugcinwa kwamanzi aphezulu, ukuqina, ukubopha, kunye nokukwazi ukwenza ifilimu. Ezi mpawu zenza i-cellulose ether ibe yinto ebalulekileyo kwimizi-mveliso emininzi, amayeza, kunye neemveliso zokhathalelo lomntu.

Enye yezinto eziphambili ze-cellulose ether yi-viscosity yayo, ebhekisela ekuchaseni ulwelo ukuhamba. I-Viscosity yiparameter ebalulekileyo echaphazela ukusebenza kunye nokusetyenziswa kwe-cellulose ether kwiimveliso ezahlukeneyo. Kweli nqaku, siza kuxubusha i-viscosity ye-cellulose ether, kubandakanywa nokulinganisa kwayo, izinto ezichaphazelayo, kunye nokusetyenziswa kwayo kumashishini ahlukeneyo.

Umlinganiselo weViscosity yeCellulose Ether

I-viscosity ye-cellulose ether ngokuqhelekileyo ilinganiswa kusetyenziswa i-viscometer, esisixhobo esilinganisa isantya sokuhamba kolwelo oluphantsi kwefuthe lomxhuzulane okanye amandla asetyenzisiweyo. Kukho iintlobo ezininzi ze-viscometers, ezibandakanya ukujikeleza, i-capillary, kunye ne-oscillatory viscometers, nganye ineenzuzo kunye nemida yayo.

Ii-viscometers ezijikelezayo zezona zixhobo zisetyenziswa kakhulu ukulinganisa i-viscosity ye-cellulose ether. Ezi zixhobo zilinganisa i-torque efunekayo ukujikeleza i-spindle okanye i-rotor entywiliselwe kulwelo ngesantya esingaguqukiyo. I-viscosity ke ibalwa ngokusekelwe kubudlelwane phakathi kwe-torque kunye nesantya sokujikeleza.

Ngakolunye uhlangothi, ii-viscometers ze-Capillary, zilinganisa ixesha elifunekayo ukuze umthamo omiselweyo wolwelo uhambe ngetyhubhu ye-capillary emxinwa phantsi kwefuthe lomxhuzulane okanye i-gradient yoxinzelelo. I-viscosity ke ibalwa ngokusekelwe kumthetho wePoiseuille, ohambelana nesantya sokuhamba kunye ne-viscosity, i-tube diameter, kunye ne-gradient yoxinzelelo.

Ii-viscometers ze-oscillatory, ezilinganisa ukuguqulwa kunye nokubuyiswa kolwelo phantsi koxinzelelo lwe-sinusoidal shear, zisetyenziselwa ukulinganisa i-viscosity eyinkimbinkimbi ye-cellulose ether, eyona nto i-viscosity exhomekeke rhoqo.

Izinto ezichaphazela iViscosity yeCellulose Ether

I-viscosity ye-cellulose ether iphenjelelwa zizinto ezininzi, kuquka ubunzima bayo bemolekyuli, iqondo lokuthatha indawo, ukugxila, ubushushu kunye nesantya sokucheba.

Ubunzima bemolekyuli: I-viscosity ye-cellulose ether iyanda ngokunyuka kobunzima bemolekyuli, njengoko iipolymers ezinobunzima bemolekyuli zinamatyathanga amade athandelana omnye komnye, okukhokelela ekwandeni kokumelana nokuhamba.

Iqondo lokutshintsha: Iqondo lokutshintshwa (DS) lwe-cellulose ether, ebhekiselele kwinani lamaqela e-hydroxyl efakwe endaweni nganye kwiyunithi yeglucose kwikhonkco leselulosi, nayo ichaphazela i-viscosity yayo. Njengoko i-DS isanda, i-viscosity ye-cellulose ether iyanda ngenxa yokunyuka kwe-chain entanglement kunye ne-intermolecular interactions.

Ugxininiso: I-viscosity ye-cellulose ether iyanda ngokunyuka koxinzelelo, njengoko ugxininiso oluphezulu lukhokelela ekwandeni kwe-chain entanglement kunye ne-intermolecular interactions.

Ubushushu: I-viscosity ye-cellulose ether iyancipha ngokunyuka kwamaqondo okushisa, njengoko amaqondo okushisa aphezulu akhokelela ekunyusweni kwentshukumo ye-molecular kunye nokunciphisa ukusebenzisana kwe-intermolecular.

Izinga le-Shear: I-viscosity ye-cellulose ether nayo ixhomekeke kwireyithi yokucheba esetyenzisiweyo, njengoko izinga eliphezulu lokucheba likhokelela ekwandiseni ukulungelelaniswa kwekhonkco kunye nokunciphisa ukuxhathisa ukuhamba.

Ukusetyenziswa kwe-Cellulose Ether kumaShishini ahlukeneyo

I-cellulose ether isetyenziswa ngokubanzi kumashishini ahlukeneyo ngenxa yeempawu zayo ezizodwa, kuquka i-viscosity yayo. Ezinye zezicelo eziphambili ze-cellulose ether kumashishini ahlukeneyo zixoxwa ngezantsi.

Ulwakhiwo: I-ether ye-Cellulose isetyenziswa njenge-thickener, i-arhente yokugcina amanzi, kunye ne-binder kwiimveliso zokwakha ezifana nesamente, udaka kunye negypsum. Iphucula ukusebenza, ukuhambelana, kunye nokunamathela kwezi mveliso, okukhokelela ekusebenzeni okuphuculweyo kunye nokuqina.

Amachiza: I-ether ye-Cellulose isetyenziswa njenge-excipient kwimixube yamachiza njengeepilisi, ii-capsules, kunye neekhrimu. Iphucula ukuhamba, ukunyanzeliswa, kunye ne-viscosity ye-formulations, ekhokelela ekuphuculeni ukuhanjiswa kweziyobisi kunye nokuzinza.