Kuyedza viscosity yechikafu-giredhi sodium carboxymethyl cellulose (CMC) kwakakosha pakuona kushanda kwayo uye kushanda kwayo mumhando dzakasiyana dzekudya. Viscosity zviyero zvinobatsira vagadziri kuona kukora uye kudzikamisa kugona kweCMC mhinduro, izvo zvakakosha pakuwana hunhu hwechigadzirwa hunodiwa senge manyorerwo, muromo, uye kugadzikana. Heino gwara rakazara kune yekuyedza nzira yekudya-giredhi sodium CMC viscosity:

1. Musimboti:

• Viscosity chiyero chekuramba kwemvura kuyerera. Panyaya yemhinduro dzeCMC, viscosity inokanganiswa nezvinhu zvakaita se polymer concentration, degree of substitution (DS), uremu hwemamorekuru, pH, tembiricha, uye shear rate.
• Iyo viscosity yeCMC mhinduro inowanzoyerwa uchishandisa viscometer, iyo inoshandisa shear stress kune fluid uye inoyera inokonzeresa deformation kana kuyerera mwero.

2. Zvishandiso uye Reagents:

• Chikafu-giredhi sodium carboxymethyl cellulose (CMC) sampuli.
• Distilled mvura.
• Viscometer (semuenzaniso, Brookfield viscometer, inotenderera kana capillary viscometer).
• Spindle yakakodzera kune viscosity renji yemuenzaniso.
• Tembiricha-inodzorwa mvura yekugezera kana thermostatic chamber.
• Stirrer kana magnetic stirrer.
• Beakers kana sampuli makapu.
• Stopwatch kana timer.

3. Maitiro:

1. Muenzaniso Kugadzirira:
   • Gadzirira nhevedzano yemhinduro dzeCMC dzine huwandu hwakasiyana (semuenzaniso, 0.5%, 1%, 2%, 3%) mumvura yakasvibiswa. Shandisa chiyero kuyera huwandu hwakakodzera hweCMC hupfu uye woiwedzera zvishoma nezvishoma kumvura nekukurudzira kuti uve nechokwadi chekupararira kwakakwana.
   • Bvumira mhinduro dzeCMC kuti dzive hydrate uye dzienzane kwenguva yakakwana (semuenzaniso, maawa makumi maviri nemana) kuve nechokwadi che hydration uye kugadzikana.
2. Instrument Setup:
   • Gadzirisa viscometer zvinoenderana nemirairo yemugadziri uchishandisa yakajairwa viscosity reference fluid.
   • Gadzirisa viscometer kune yakakodzera kumhanya kana shear rate renji kune inotarisirwa viscosity yeCMC mhinduro.
   • Preheat viscometer uye spindle kune yaunoda bvunzo tembiricha uchishandisa tembiricha-inodzorwa mvura yekugezera kana thermostatic chamber.
3. Kuyera:
   • Zadza kapu yekuenzanisira kana beaker neCMC mhinduro kuti iongororwe, kuve nechokwadi chekuti spindle yakanyudzwa zvizere mumuenzaniso.
   • Dzikisa chirungiso mumuenzaniso, uchichenjerera kudzivirira kuunza mabhuru emhepo.
   • Tanga viscometer uye bvumira kuti spindle itenderere nekumhanya kwakatemwa kana shear rate yenguva yakafanotemerwa (semuenzaniso, 1 miniti) kuti isvike payakagadzikana-mamiriro.
   • Rekodha kuverenga kwe viscosity kunoratidzwa pane viscometer. Dzokorora kuyerwa kwemhinduro yega yega yeCMC uye pamitengo yakasiyana yekugera kana zvichidikanwa.
4. Data Analysis:
   • Rongedza viscosity kukosha kupesana neCMC kusungwa kana shear rate kugadzira viscosity curves.
   • Verenga zvinooneka viscosity kukosha pane chaiyo shear mitengo kana kutarisisa kwekuenzanisa uye kuongorora.
   • Sarudza iyo rheological maitiro eCMC mhinduro (semuenzaniso, Newtonian, pseudoplastic, thixotropic) zvichibva pachimiro cheiyo viscosity curves uye mhedzisiro yeshear rate pane viscosity.
5. Dudziro
   • Yakakwira viscosity kukosha inoratidza kuramba kuyerera uye kwakasimba kukora zvivakwa zveCMC mhinduro.
   • Iyo viscosity maitiro eCMC mhinduro anogona kusiyana zvichienderana nezvinhu zvakaita sekutarisa, tembiricha, pH, uye shear rate. Kunzwisisa zvinhu izvi kwakakosha pakugadzirisa CMC kuita mune chaiyo chikafu maapplication.

4. Zvinotarisirwa:

• Ita shuwa kuenzanisa kwakaringana uye kuchengetedzwa kwe viscometer yezviyero zvakarurama uye zvakavimbika.
• Dzora bvunzo mamiriro (semuenzaniso, tembiricha, shear mwero) kuderedza kusiyanisa uye kuve nechokwadi chekuberekana kwemhedzisiro.
• Simbisa nzira uchishandisa referensi zviyero kana kuenzanisa kuongorora nedzimwe nzira dzakasimbiswa.
• Ita zviyero zve viscosity pamapoinzi akawanda pamwe chete nekugadzirisa kana kuchengetedza mamiriro kuti uone kugadzikana uye kukodzera kwezvirongwa zvinotarisirwa.

Nekutevera iyi nzira yekuyedza, iyo viscosity yechikafu-giredhi sodium carboxymethyl cellulose (CMC) mhinduro dzinogona kutsanangurwa nenzira kwayo, ichipa ruzivo rwakakosha rwekugadzira, kutonga kwemhando, uye kugadzirisa mashandiro muindasitiri yezvekudya.