Kev txhim kho ntawm Rheological Thickener

Txoj kev loj hlob ntawm rheological thickeners tau ua ib qho tseem ceeb hauv keeb kwm ntawm cov ntaub ntawv science thiab engineering. Rheological thickeners yog cov ntaub ntawv uas tuaj yeem ua kom cov viscosity thiab / lossis tswj cov khoom ntws ntawm cov kua dej, tshem tawm, thiab emulsions.

Thawj rheological thickener tau tshawb pom yuam kev nyob rau hauv lub xyoo pua 19th, thaum sib tov ntawm dej thiab hmoov nplej tau tso tseg rau ib lub sij hawm, uas ua rau ib tug tuab, zoo li gel. Qhov sib tov no tom qab pom tias yog ib qho yooj yim tshem tawm cov hmoov nplej hauv dej, uas tuaj yeem siv los ua cov thickener hauv ntau daim ntawv thov.

Nyob rau hauv lub xyoo pua 20th, lwm cov ntaub ntawv tau pom tias muaj cov khoom ua kom tuab, xws li cov hmoov txhuv nplej siab, cov pos hniav, thiab av nplaum. Cov ntaub ntawv no tau siv los ua rheological thickeners nyob rau hauv ntau yam kev siv, los ntawm cov khoom noj thiab tshuaj pleev ib ce mus rau xim thiab drilling kua.

Txawm li cas los xij, cov thickeners ntuj no muaj kev txwv, xws li kev ua tau zoo sib txawv, rhiab heev rau kev ua haujlwm, thiab muaj peev xwm kis kab mob microbiological. Qhov no tau coj mus rau kev tsim cov hluavtaws rheological thickeners, xws li cellulose ethers, acrylic polymers, thiab polyurethanes.

Cellulose ethers, xws li sodium carboxymethyl cellulose (CMC), methyl cellulose (MC), thiab hydroxypropyl cellulose (HPC), tau dhau los ua ib qho ntawm feem ntau siv rheological thickeners hauv ntau daim ntawv thov, vim lawv cov khoom tshwj xeeb, xws li dej solubility, pH stability, ionic zog rhiab heev, thiab zaj duab xis-tsim muaj peev xwm.

Txoj kev loj hlob ntawm hluavtaws rheological thickeners tau enabled cov formulation ntawm cov khoom uas zoo ib yam, txhim khu kev ruaj ntseg, thiab txhim khu kev qha functionality. Nrog rau qhov kev thov loj hlob rau cov ntaub ntawv ua tau zoo, kev txhim kho ntawm cov rheological thickeners tshiab yuav tsum txuas ntxiv mus, tau tsav los ntawm kev nce qib hauv cov ntaub ntawv science, chemistry, thiab engineering.