Kev sim txoj kev rau viscosity ntawm redispersible latex hmoov

Tam sim no, cov khoom siv redispersible latex hauv ntiaj teb no suav nrog vinyl acetate thiab ethylene copolymer hmoov, ethylene, vinyl chloride thiab vinyl laurate ternary copolymer hmoov, vinyl acetate, ethylene thiab siab dua fatty acid vinyl ester ternary copolymer hmoov. Hmoov, peb cov khoom siv hluav taws xob hloov pauv tau hloov pauv tau tswj hwm tag nrho cov lag luam, tshwj xeeb tshaj yog cov yas acetate thiab ethylene copolymer hmoov VAC / E, uas ua haujlwm nyob rau hauv lub ntiaj teb no thiab sawv cev rau cov yam ntxwv ntawm redispersible polymer hmoov. Tseem yog qhov kev daws teeb meem zoo tshaj plaws nyob rau hauv cov nqe lus ntawm kev paub dhau los nrog cov polymers siv rau kev hloov kho mortar:

1. Nws yog ib qho ntawm cov polymers siv ntau tshaj plaws hauv ntiaj teb;

2. Daim ntawv thov kev paub hauv kev tsim kho yog qhov ntau tshaj;

3. Nws tuaj yeem ua tau raws li cov khoom siv rheological uas yuav tsum tau ua los ntawm mortar (uas yog, qhov tsim nyog yuav tsum tau ua);

4. Cov polymer resin nrog rau lwm cov monomers muaj cov yam ntxwv ntawm cov organic volatile teeb meem (VOC) thiab tsis tshua muaj irritating gas;

5. Nws muaj cov yam ntxwv ntawm kev ua haujlwm zoo UV, kev ua haujlwm kub zoo thiab kev ruaj ntseg ntev;

6. Kev ua haujlwm siab rau saponification;

7. Nws muaj qhov widest iav hloov kub ntau yam (Tg);

8. Nws muaj kev sib txuas zoo heev, kev ua haujlwm yooj yim thiab cov khoom siv tshuab;

9. Muaj kev paub ntev tshaj plaws hauv kev tsim tshuaj lom neeg ntawm yuav ua li cas tsim cov khoom zoo ruaj khov thiab kev paub txog kev tswj xyuas kev ruaj ntseg;

10. Nws yog ib qho yooj yim heev los ua ke nrog kev tiv thaiv colloid (polyvinyl cawv) nrog kev ua haujlwm siab.

Txoj kev tshawb pom ntawm kev sib txuas ntawm lub zog ntawm redispersible latex hmoov yog tus cwj pwm hauv qhov kev txiav txim siab yog raws li hauv qab no:

1. Ua ntej, noj 5g ntawm redispersible latex hmoov thiab muab tso rau hauv ib lub khob ntsuas, ntxiv 10g dej ntshiab thiab do rau 2 feeb kom nws sib npaug;

2. Tom qab ntawd cia lub khob ntsuas sib xyaw kom sawv ntsug li 3 feeb, ces do dua rau 2 feeb;

3. Tom qab ntawd siv tag nrho cov tshuaj nyob rau hauv lub khob ntsuas ntawm lub khob huv si muab tso rau kab rov tav;

4. Muab cov iav phaj rau hauv DW100 qhov kub thiab txias ib puag ncig simulation kuaj chamber;

5. Thaum kawg, muab tso rau hauv qhov chaw simulation ib puag ncig ntawm 0 ° C rau 1 teev, tshem tawm cov iav phaj, sim cov zaj duab xis tsim tus nqi, thiab xam cov qauv kev sib txuas ntawm lub zog ntawm cov kua roj respersible latex hmoov siv raws li tus nqi sib sau .