PH yog dab tsi?
PH tus nqi, tseem hu ua acid-base nqi, yog lub cim siv tshuaj los ntsuas qhov sib piv ntawm acidity rau alkalinity ntawm cov kua. Hauv cov tshuaj tiv thaiv polyurethane synthesis, PH ntawm lub kaw lus muaj qhov cuam tshuam zoo rau cov tshuaj tiv thaiv, thiab kev siv cov txheej txheem hloov kho cov kua qaub kom zoo tuaj yeem txhim kho kev ua haujlwm ntawm cov khoom. Tsis tas li ntawd, qee qhov nplaum acid-base inconsistency yuav cuam tshuam rau viscosity, ntxivMolecular Sieve hmoovtuaj yeem ua lub luag haujlwm hauv kev kho PH.
Yuav kuaj PH li cas?
1, Muab lub khob rau ntawm qhov sib npaug thiab xoom nws, muab 10g ntawmactivation hmoovrau hauv lub khob.
2, Muab 100ml ntawm deionized dej rau hauv lub beaker, muab tso rau ntawm lub blender thiab do rau 5 feeb.
3, Do thiab cia nws nyob. Muab cov calibrated PH meter rau hauv lub beaker thiab ntsuas tus nqi PH ntawm tusMolecular Sieve hmoov.
Xav paub ntau ntxiv, thov hu rau peb:
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