Polycarboxylate superplasticizer tau nyiam ntau vim nws qhov zoo ntawm siab dispersibility, daim ntawv thov dav, ntau qhov poob qis thiab kev tiv thaiv ib puag ncig.
Tab sis polycarboxylate superplasticizer muaj qhov siab xav tau ntawm cov khoom siv xuab zeb thiab tsuas yog siv rau hauv cov qib siab ua vaj tse, uas zoo heev txwv daim ntawv thov ntawm polycarboxylate superplasticizer hauv cov av qis.
Yog li ntawd, polycarboxylic acid dej-txo tus neeg sawv cev rau qis carbon pob zeb ua ke tau tsim.
Qeb qis pob zeb nrog cov av nkos ntsiab lus thiab tsim qis gradation yuav tsum muaj cov xuab zeb zoo thiab pob zeb tau yoog tau, thiab nws txoj kev khaws cia thiab kev ua haujlwm tau zoo dua li ntawm aliphatic dej reducer.
1. Nyob rau hauv cov xwm txheej ntawm tib lub alkyd huab hwm coj sib piv, polycarboxylic acid dej-txo tus neeg sawv cev sib xyaw los ntawm kev siv cov roj molecular tsawg MPEG muaj cov swb zoo tiv thaiv, tab sis lub zog compressive ntawm qhob tov nrog dej-txo tus neeg sawv cev yog qis dua qhov ntawd los ntawm kev siv siab lwg me phaus MPEG.
2. Thaum ntau npaum ntawm dimethyl maleate, sulfhydrylpropionic acid thiab ammonium persulfate yog 3.0%, 0.70% thiab 1.4%, feem, qhov npaj polycarboxylate superplasticizer muaj kev ua tau zoo.
3. Qhov sib piv ntawm polycarboxylate superplasticizer thiab aliphatic superplasticizer coj los ua ke nyob rau hauv qhov kev tshawb fawb no thiab siv rau qib qis cov pob zeb ua kom pom tias kev tsim polycarboxylate superplasticizer muaj cov kev ua tau zoo thiab qhov zoo hauv kev txo tus nqi ntawm cov pob zeb txig qis dua piv nrog kev siv aliphatic superplasticizer.
