VAE hmoov RDP (Redispersible) polymer hmoov yog feem ntau siv additives nyob rau hauv kev tsim kho kev lag luam.Nws yog ntxiv rau cov khoom siv cement xws li cov nplais nplaum, cov khoom sib txuas ntawm tus kheej thiab cov txheej txheem sab nrauv phab ntsa los txhim kho cov khoom xws li kev ua haujlwm, adhesion thiab yooj.Qhov loj me me, nce ntom thiab viscosity ntawm RD Polymer Fille yog qhov tseem ceeb rau lawv kev ua tau zoo hauv cov ntawv thov no.Kab lus no yuav tsom mus rau txoj kev ntsuas viscosity ntawm VAE hmoov RD polymer hmoov.
Viscosity txhais tau tias yog ib qho kev ntsuas ntawm cov kua dej tsis kam ntws.Rau VAE hmoov RD polymer hmoov, viscosity yog ib qho tseem ceeb parameter cuam tshuam lub fluidity thiab workability ntawm cement mix.Qhov siab dua qhov viscosity, qhov nyuaj dua rau cov hmoov sib tov nrog dej, ua rau cov pob thiab tsis tiav dispersion.Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tsum tswj cov qib viscosity ntawm RD polymer hmoov kom ua tiav qhov zoo ib yam ntawm cov khoom kawg.
Txoj kev ntsuas viscosity rau VAE hmoov RD polymer hmoov yog nqa tawm siv lub viscometer rotational.Lub viscometer rotational ntsuas lub torque yuav tsum tau tig ib tug spindle nyob rau hauv ib tug qauv ntawm polymer hmoov raug tshem tawm nyob rau hauv dej.Lub spindle rotates ntawm ib tug ceev ceev thiab torque yog ntsuas nyob rau hauv centipoise (cP).Lub viscosity ntawm cov hmoov polymer yog ces xam raws li lub torque yuav tsum tau tig lub spindle.
Cov kauj ruam hauv qab no qhia txog cov txheej txheem rau Viscosity Test Method rau VAE Powder RD Polymer Powder.
1. Kev npaj ua qauv: Siv cov qauv piv txwv ntawm RD polymer hmoov thiab hnyav rau qhov ze tshaj 0.1 g.Hloov cov qauv mus rau ib lub thawv huv, qhuav thiab tared.Sau qhov hnyav ntawm lub thawv thiab cov qauv.
2. Disperse cov hmoov polymer: Disperse cov hmoov polymer hauv dej raws li cov chaw tsim khoom cov lus qhia.Feem ntau, cov hmoov polymer yog tov nrog dej siv lub tshuab ua kom siab ceev.Sib tov cov hmoov polymer thiab dej tsawg kawg yog 5 feeb los yog kom txog thaum sib tov homogeneous.Qhov sib tov ceev thiab lub sijhawm yuav tsum zoo ib yam thoob plaws qhov kev sim.
3. Kev ntsuas viscosity: siv lub viscometer rotational los ntsuas qhov viscosity ntawm polymer hmoov ncua kev kawm ntawv.Lub spindle loj thiab ceev yuav tsum raug xaiv raws li qhov xav tau viscosity ntawm cov hmoov polymer.Piv txwv li, yog tias xav tau qis viscosity, siv qhov me me spindle loj thiab siab dua RPM.Yog tias xav tau viscosity siab dua, siv lub spindle loj dua thiab qis dua.
4. Calibration: Ua ntej yuav ntsuas, ntsuas lub viscometer raws li cov neeg tsim khoom cov lus qhia.Qhov no suav nrog kev teeb tsa xoom point thiab calibrating nrog cov qauv kev daws teeb meem ntawm paub viscosity.
5. Ntsuas lub torque: Muab lub rotor tso rau hauv lub polymer hmoov suspension kom txog thaum nws tag nrho submerged.Lub spindle yuav tsum tsis txhob kov hauv qab ntawm lub thawv.Pib tig lub spindle thiab tos kom lub zog nyeem ntawv kom ruaj khov.Sau cov torque nyeem hauv centipoise (cP).
6. Replicate: Yam tsawg kawg yog peb qhov kev ntsuas rov ua dua rau txhua tus qauv thiab qhov nruab nrab viscosity xam.
7. Kev Tu: Tom qab kev ntsuas tiav, ntxuav lub rotor thiab lub thawv kom huv si nrog dej thiab xab npum.Yaug nrog dej distilled thiab ua tib zoo qhuav.
Lub viscosity ntawm RD polymer hmoov yog cuam tshuam los ntawm ntau yam xws li kub, pH thiab concentration.Yog li ntawd, nws yog ib qho tseem ceeb heev rau kev ntsuas viscosity nyob rau hauv cov txheej txheem txheem.Tsis tas li ntawd, kev ntsuas viscosity tsis tu ncua yuav tsum tau ua kom ntseeg tau tias kev ua tau zoo ntawm RD polymer hmoov.
Hauv cov ntsiab lus, txoj kev ntsuas viscosity ntawm VAE hmoov RD polymer hmoov yog ib qho kev sim tseem ceeb los txiav txim siab qhov dej thiab kev ua haujlwm ntawm cov khoom siv cement.Kev ntsuam xyuas yuav tsum tau ua nrog cov cuab yeej siv thiab cov txheej txheem kom tau txais cov txiaj ntsig raug thiab rov tsim dua tshiab.Kev ntsuas viscosity yuav tsum tau coj mus sij hawm los xyuas kom meej qhov zoo ntawm RD polymer hmoov.
Post lub sij hawm: Jun-25-2023