20 Piv txwv ntawm Kev Ncua Sijhawm - Phau Ntawv Qhia Txog Kev

Daim Duab: Nkauj Kev Deb Nraug Kev Ncua Ntev

Zoo Siab

Cov yam ntxwv ntawm kev ncua
Piv txwv ntawm kev ncua

Hauv chemistry, a raug ncua Nws yog hom sib xyaw sib txawv uas tsim los ntawm ib lossis ntau yam tshuaj nyob hauv lub xeev khov kho uas tau tawg hauv cov khoom hauv cov kua lossis lub xeev muaj roj. Hauv kev raug ncua, cov khoom tawg (theem tawg) tsis yog diluted hauv cov kua nruab nrab (theem tawg). Piv txwv li: kua txiv kab ntxwv, txij li cov pulp ntab thiab tsis sib xyaw rau hauv cov kua nruab nrab, cov hmoov tshuaj.

Kev tshem tawm yog qhov sib xyaw sib txawv vim tias nws muaj peev xwm cais qhov sib txawv uas ua rau nws nce. Lawv zoo li tsis sib tov sib xyaw, txij li, vim lawv qhov loj me, cov khoom ua tau zoo hauv qhov raug ncua yuav daws tau yooj yim thaum sib tov so.

Nws tuaj yeem ua haujlwm rau koj: Kev sib xyaw ntawm cov khib nyiab nrog kua

Cov yam ntxwv ntawm kev ncua

Lawv pom tau yooj yim sib xyaw vim tias lawv feem ntau tsis pom kev.
Txawm hais tias feem ntau yog ua los ntawm cov khoom ua kua thiab kua (lub tshuab tshem tawm), nws kuj tseem tuaj yeem ua kua + kua thiab ua kua lossis kua + roj. Ib qho piv txwv ntawm cov khoom sib faib hauv cov pa yog aerosol.
Hauv kev lag luam sib txawv, cov tshuaj xws li surfactants thiab thickeners tau siv los tiv thaiv cov khib nyiab hauv qhov sib tov los ntawm kev daws teeb meem.
Coob leej yuav tsum tau sib xyaw lossis tshee hnyo kom rov qab mus rau lawv lub xeev raug ncua.
Lawv txawv ntawm cov kev daws teeb meem vim hais tias cov khoom ua tau loj dua, thiab hauv kev daws teeb meem cov khoom tsis yaj hauv cov kua, ua rau muaj kev sib xyaw ua homogeneous.
Lawv txawv ntawm colloids, vim tias hauv lawv cov khoom ua tau zoo dua (txoj kab nruab nrab ntawm 10⁻⁹ thiab 10⁻⁵ nanometer).
Cov tshuaj uas sau nws tuaj yeem sib cais los ntawm cov txheej txheem ntawm lub cev xws li pom, centrifugation thiab decantation.