Cellulose ether ikirasi yemvura-inonyungudika mapolymers akatorwa kubva ku cellulose, inova ndiyo huru yemaitiro chikamu chechirimwa masero madziro. Cellulose ether ine zvinhu zvakawanda zvakasiyana, zvinosanganisira kuchengetedza mvura yakawanda, kukora, kusunga, uye kukwanisa kugadzira firimu. Zvinhu izvi zvinoita kuti cellulose ether ive chinhu chakakosha mumaindasitiri mazhinji, emishonga, uye zvigadzirwa zvekuchengeta munhu.

Chimwe chezvinhu zvakakosha zve cellulose ether ndeye viscosity yayo, iyo inoreva kushorwa kwemvura kuyerera. Viscosity yakakosha parameter inokanganisa kuita uye kushandiswa kwe cellulose ether muzvigadzirwa zvakasiyana. Muchikamu chino, tichakurukura viscosity ye cellulose ether, kusanganisira kuyerwa kwayo, zvinhu zvinoikanganisa, uye kushandiswa kwayo mumaindasitiri akasiyana.

Kuyera kweViscosity yeCellulose Ether

Iko viscosity ye cellulose ether inowanzopimwa pachishandiswa viscometer, chiridzwa chinoyera kuyerera kwemvura iri pasi pesimba regiravhiti kana simba rinoiswa. Kune akati wandei marudzi emaviscometers, anosanganisira anotenderera, capillary, uye oscillatory viscometers, imwe neimwe ine zvayakanakira nezvayaisingakwanisi.

Rotational viscometers ndiyo inonyanya kushandiswa midziyo yekuyera viscosity ye cellulose ether. Zviridzwa izvi zvinoyera torque inodiwa kutenderedza spindle kana rotor yakanyudzwa mumvura nekumhanya kusingaperi. Iyo viscosity inozoverengerwa zvichienderana nehukama pakati pe torque nekumhanya kwekutenderera.

Capillary viscometers, kune rumwe rutivi, inoyera nguva inodiwa kuti vhoriyamu yakatarwa yemvura iyerere nepakati pekapilari chubhu yakatetepa pasi pesimba regiravhiti kana kuti dhigirii. Iyo viscosity inozoverengerwa zvichienderana nemutemo wePoiseuille, unoenderana neyero yekuyerera kune viscosity, chubhu dhayamita, uye kumanikidza gradient.

Oscillatory viscometers, iyo inoyera deformation uye kupora kwemvura iri pasi pe sinusoidal shear stress, inoshandiswa kuyera yakaoma viscosity ye cellulose ether, inova frequency-dependent viscosity.

Zvinhu Zvinokanganisa Viscosity yeCellulose Ether

Iyo viscosity ye cellulose ether inopesvedzerwa nezvinhu zvakati wandei, zvinosanganisira huremu hwayo hwemamorekuru, dhigirii rekutsiva, kutarisisa, tembiricha, uye shear rate.

Huremu hweMolecular: The viscosity ye cellulose ether inowedzera nekuwedzera kwema molecular huremu, sezvo yakakwirira molecular uremu mapolymer ane cheni dzakareba dzinosungirirana, zvichikonzera kuwedzera kuramba kuyerera.

Degree of substitution: The degree of substitution (DS) ye cellulose ether, iyo inoreva nhamba yeakatsiviwa hydroxyl mapoka paglucose unit mucheni ye cellulose, inokanganisawo viscosity yayo. Sezvo DS inowedzera, viscosity ye cellulose ether inowedzera nekuda kwekuwedzera kweketani entanglement uye intermolecular interactions.

Concentration: The viscosity ye cellulose ether inowedzera nekuwedzera kuisa pfungwa, sezvo kunyanya kuisa pfungwa kunotungamirira kukuwedzera kweketani entanglement uye intermolecular interactions.

Tembiricha: The viscosity ye cellulose ether inodzikira nekuwedzera tembiricha, sezvo tembiricha yakakwira ichitungamira kukuwedzera kwema molecular motion uye kuderedzwa kwe intermolecular interaction.

Shear rate: Iyo viscosity ye cellulose ether inotsamirawo pane yakashandiswa shear rate, sezvo yakakwirira shear mitengo inotungamirira kuwedzera ketani kurongeka uye kuderedzwa kuramba kuyerera.

Kushandiswa kweCellulose Ether mune Akasiyana Maindasitiri

Cellulose ether inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana nekuda kweiyo yakasarudzika zvivakwa, kusanganisira viscosity yayo. Zvimwe zvekushandisa zvakakosha zve cellulose ether mumaindasitiri akasiyana zvinokurukurwa pazasi.

Kuvaka: Cellulose ether inoshandiswa seyakakora, inochengetedza mvura, uye binder muzvigadzirwa zvekuvaka zvakaita sesimende, dhaka, uye gypsum. Inovandudza kushanda, kuwirirana, uye kunamatira kwezvigadzirwa izvi, zvichiita kuti kuve nekuvandudzwa kwekuita uye kusimba.

Pharmaceuticals: Cellulose ether inoshandiswa sechinhu chinobatsira mukugadzirwa kwemishonga semapiritsi, capsules, uye mafuta. Inonatsiridza kuyerera, kudzvanya, uye viscosity yezvigadziriso, zvichitungamira kune kunatsiridza kuendesa zvinodhaka uye kugadzikana.