Kev sim txoj kev rau cov khoom thiab viscosity ntawm redispersible polymer hmoov RDP, thoob ntiaj teb yog dav siv los disperse polymer hmoov RDP nrog vinyl acetate thiab ethylene copolymerized emulsion hmoov, ethylene thiab vinyl chloride thiab lauric acid vinyl ester ternary copolymer hmoov, vinyl ethyl vinyl acid thiab vinyl fatty acids. copolymer hmoov, cov no peb rau disperse polymer hmoov RDP nyob rau hauv tag nrho cov lag luam tseem ceeb, tshwj xeeb tshaj yog yas acetate thiab ethylene copolymer hmoov VAC/E, Nws occupies ib tug ua txoj hauj lwm nyob rau hauv lub ntiaj teb no teb thiab sawv cev rau cov txuj ci yam ntxwv ntawm redispersible polymer hmoov RDP.
Redispersible polymer hmoovRDP muaj lub zog zoo tshaj plaws, txhim kho qhov yooj yim ntawm mortar thiab muaj lub sijhawm qhib ntev dua, muab cov tshuaj khib nyiab zoo heev alkaline tiv thaiv, txhim kho cov adhesion ntawm mortar adhesion, flexural zog, waterproof, plasticity, hnav tsis kam thiab kev tsim kho, nyob rau hauv lub saj zawg zog anti-crack mortar muaj zog yooj.
Los ntawm cov kev paub dhau los ntawm polymer hloov los ntawm mortar, nws tseem yog ib qho kev daws teeb meem zoo dua:
1, RDP yog ib qho ntawm cov khoom siv ntau tshaj plaws hauv ntiaj teb.
2, Kev siv ntau yam hauv kev ua haujlwm ntawm architecture;
3, tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm mortar rheological zog (uas yog, yuav tsum tsim kho);
4, nrog rau lwm cov monomer polymer resin muaj cov organic volatile teeb meem (VOC) thiab cov yam ntxwv tsis tshua muaj kuab lom;
5, nrog zoo heev uv tsis kam thiab zoo tshav kub tsis kam thiab mus ntev stability;
6, nrog siab saponification kuj;
7, nrog rau qhov dav iav qhov kub thiab txias (Tg);
8, nrog kev sib txuas zoo heev, kev hloov pauv thiab cov khoom siv kho tshuab;
9, yooj yim thiab zoo sib xws ntawm kev tiv thaiv colloid (polyvinyl cawv) ua ke.
Txoj kev tshawb nrhiav rau cov nplaum lub zog ntawm redispersible polymer hmoov RDP yog tus cwj pwm los ntawm cov kev txiav txim hauv qab no:
1, ua ntej noj cov tshuaj polymer respersible RDP 5g rau hauv lub khob ntsuas, ntxiv 10g dej ntshiab thiab do rau 2min, ua kom sib npaug sib npaug;
2. Teem lub khob ntsuas sib xyaw rau 3min thiab do dua rau 2min;
3. Smear tag nrho cov tshuaj nyob rau hauv lub khob ntsuas ntawm kab rov tav huv iav phaj;
4, muab lub iav phaj rau hauv DW100 qhov kub thiab txias ib puag ncig simulation kuaj lub thawv;
5, thaum kawg muab tso rau hauv 0 ° C ib puag ncig simulation tej yam kev mob rau 1 teev, tshem tawm cov iav phaj, sim cov zaj duab xis tsim tus nqi, raws li cov zaj duab xis tsim tus nqi hloov dua siab tshiab ntawm redispersible polymer hmoov RDP nyob rau hauv kev siv cov txheej txheem kev sib raug zoo zog.
Post lub sij hawm: Feb-18-2022