I-Cellulose ether iyikilasi lama-polymers ancibilika emanzini atholakala ku-cellulose, okuyingxenye yesakhiwo eyinhloko yezindonga zamaseli ezitshalo. I-Cellulose ether inezinto eziningi eziyingqayizivele, ezihlanganisa ukugcinwa kwamanzi aphezulu, ukuqina, ukubopha, kanye nekhono lokwenza ifilimu. Lezi zakhiwo zenza i-cellulose ether ibe isithako esibalulekile emikhiqizweni eminingi yezimboni, ezemithi, kanye nokunakekelwa komuntu siqu.

Enye yezinto ezibalulekile ze-cellulose ether yi-viscosity yayo, ebhekisela ekuphikisweni koketshezi ukugeleza. I-Viscosity iyipharamitha ebalulekile ethinta ukusebenza nokusetshenziswa kwe-cellulose ether emikhiqizweni ehlukahlukene. Kulesi sihloko, sizoxoxa nge-viscosity ye-cellulose ether, okuhlanganisa ukulinganisa kwayo, izici ezithinta yona, nokusebenza kwayo ezimbonini ezihlukahlukene.

Isilinganiso se-Viscosity ye-Cellulose Ether

I-viscosity ye-cellulose ether ngokuvamile ikalwa kusetshenziswa i-viscometer, okuyithuluzi elikala izinga lokugeleza koketshezi ngaphansi kwethonya lamandla adonsela phansi noma amandla asetshenzisiwe. Kunezinhlobo eziningana zama-viscometers, okuhlanganisa ama-viscometers ajikelezayo, ama-capillary, nama-oscillatory, ngayinye inezinzuzo zayo kanye nokulinganiselwa kwayo.

Ama-viscometer ajikelezayo angamathuluzi asetshenziswa kakhulu ukukala i-viscosity ye-cellulose ether. Lawa mathuluzi akala i-torque edingekayo ukuze uzungezise i-spindle noma i-rotor ecwiliswe oketshezini ngesivinini esingaguquki. I-viscosity ibe ibalwa ngokusekelwe ebudlelwaneni phakathi kwe-torque nesivinini sokujikeleza.

Ngakolunye uhlangothi, ama-capillary viscometers, akala isikhathi esidingekayo ukuze umthamo ongaguquki woketshezi ugeleze eshubhuni elincane le-capillary ngaphansi kwethonya lamandla adonsela phansi noma i-gradient yokucindezela. I-viscosity ibe isibalwa ngokusekelwe emthethweni we-Poiseuille, ohlobanisa izinga lokugeleza ne-viscosity, ububanzi beshubhu, kanye ne-gradient yokucindezela.

Ama-viscometers e-oscillatory, akala ukuguquguquka nokubuyiselwa koketshezi ngaphansi kwengcindezi ye-sinusoidal shear, asetshenziselwa ukukala i-viscosity eyinkimbinkimbi ye-cellulose ether, okuyi-viscosity encike kumafrikhwensi.

Izinto Ezithinta I-Viscosity Ye-Cellulose Ether

I-viscosity ye-cellulose ether ithonywa izici ezimbalwa, okuhlanganisa isisindo sayo samangqamuzana, izinga lokushintsha, ukugxila, izinga lokushisa, kanye nesilinganiso sokugunda.

Isisindo samangqamuzana: I-viscosity ye-cellulose ether iyanda ngokwenyuka kwesisindo samangqamuzana, njengoba ama-polymer esisindo samangqamuzana aphezulu anamaketanga amade athandelana, okuholela ekwandeni kokumelana nokugeleza.

I-Degree of substitution: Izinga lokushintsha (DS) le-cellulose ether, elibhekisela enanini lamaqembu afakwe esikhundleni se-hydroxyl ngeyunithi ngayinye ye-glucose ochungechungeni lwe-cellulose, liphinde lithinte i-viscosity yayo. Njengoba i-DS ikhula, i-viscosity ye-cellulose ether iyanda ngenxa yokwanda kokuthandelwa kweketango kanye nokusebenzisana kwama-intermolecular.

Ukugxila: I-viscosity ye-cellulose ether iyanda ngokugxila okukhulayo, njengoba ukugxila okuphezulu kuholela ekwandeni kwe-chain entanglement kanye nokusebenzisana kwama-intermolecular.

Izinga lokushisa: I-viscosity ye-cellulose ether iyancipha ngokukhuphuka kwezinga lokushisa, njengoba amazinga okushisa aphezulu aholela ekwandeni kokunyakaza kwamangqamuzana kanye nokunciphisa ukusebenzisana kwama-intermolecular.

Izinga le-Shear: I-viscosity ye-cellulose ether nayo incike kuzinga lokugunda elisetshenziswayo, njengoba amazinga aphezulu okugunda aholela ekwandeni kokuqondaniswa kweketango kanye nokuncipha ukumelana nokugeleza.

Ukusetshenziswa kwe-Cellulose Ether Ezimbonini Ezihlukahlukene

I-Cellulose ether isetshenziswa kakhulu ezimbonini ezihlukahlukene ngenxa yezakhiwo zayo eziyingqayizivele, kuhlanganise ne-viscosity yayo. Ezinye zezinhlelo zokusebenza ezibalulekile ze-cellulose ether ezimbonini ezahlukene kuxoxwa ngazo ngezansi.

Ukwakhiwa: I-Cellulose ether isetshenziswa njenge-thickener, i-ejenti yokugcina amanzi, kanye ne-binder emikhiqizweni yokwakha efana nosimende, i-mortar, ne-gypsum. Ithuthukisa ukusebenza, ukungaguquguquki, nokunamathela kwale mikhiqizo, okuholela ekusebenzeni okuthuthukisiwe nokuqina.

Imithi: I-Cellulose ether isetshenziswa njenge-excipient ekwenziweni kwemithi njengamaphilisi, amaphilisi, namakhilimu. Ithuthukisa ukugeleza, ukucindezelwa, kanye ne-viscosity yokwakheka, okuholela ekulethweni kwezidakamizwa okuthuthukisiwe nokuzinza.