Cov kev ua haujlwm tseem ceeb ntawm polycarboxylate superplasticizer yog electrostatic repulsion thiab steric hindrance.polycarboxylate superplasticizer tus neeg saib xyuas molecule yog lub zuag qauv, cov saw tseem ceeb nrog polar anion pawg, adsorbed ntawm cov cement hais, tib cov nqi sib nrig repulsion, cement hais sib cais, kom ua tiav lub hom phiaj ntawm kev txo cov dej; Hydrophilic branched chains txuas mus rau theem ua kua thiab intertwine los tsim ib qhov qauv sib luag, uas ua rau cov cement nkag tau tawg. Thaum cov nplais cement nkag mus rau ib leeg, kev sib zog ua ke ntawm qhov kev tiv thaiv kab mob kom ua tiav lub hom phiaj ntawm kev txo dej.
Qhov kev txiav txim ntawm cov naphthalene dej-txo tus neeg sawv cev yog feem ntau electrostatic repulsion: sulfonate ions nyob rau hauv naphthalene dej-txo tus neeg sawv cev adsorb rau saum npoo ntawm cov cement hais, tsim diffusion bilayer, tib tus nqi repels txhua lwm yam, disperse cov hmoov av cement, ua tiav lub hom phiaj ntawm txo cov dej.
Ntau qhov kev ntsuam xyuas tau pom tias thaum polycarboxylate superplasticizer thiab naphthalene superplasticizer siv tib lub sijhawm, kev npliag ntawm cov qhob zuj zus thiab nws tsis tuaj yeem ua nws txoj haujlwm qub.Qhov laj thawj yog tias cov dej ntawm cov dej txo yog sib txawv ntawm lawv.Thaum ob qho tib si raug siv nyob rau tib lub sijhawm, carboxylic acid ions thiab sulfonic acid ions muaj kev sib tw adsorption qhov tshwm sim, sulfonic acid ions adsorption tus nqi nrawm nrawm, qhov dispersion ntawm cov cement hais tau nyob hauv txoj hauj lwm tseem ceeb, yog li cov dispersion ntawm polycarboxylic superplasticizer tsis tuaj yeem ua si, ua rau qhov tsis zoo ntawm cov dej superplasticizer.
