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保坍型聚羧酸系减水剂的合成及性能研究

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n铲oup[(OCH2CH2)n-].111rou曲t11ediscussionof£lCtIorsofpob,Inerization,也ebesttecllllicalpar锄eterss弘lⅡ1esizingwaterreduCiIlgagentswasobtained:t11ebestmolarratioss弘曲esiziI玛BT-1,BT-2arerespectiVelyn(APEG):n(MA):n(AM)=1:1.8:1.2aIldn(TPEG):n0蝴):n呲~)=1:1.6:1.9;也edosageofinitiatoris3.5%~4%ofthetotalweiglltofmonomers;Thereactionconcen仃ationis40%;Thereactiontemper加】reis75℃;ActiVemonomer(AM)solutionandinitiatorsolutiondropwiseaddrespectiVely,andactiveAMsolutiondropsoutbeforemeinitiatorsolutionO.5h.Usillgaqueousgelc11I。omato罂.aphy,in姗dspec仃0sc9pya11dotllerdetectionmetllods,meco仃espondings仇lCturecharacterizationforpolycarboxylatesupeIpl嬲ticizerwi也sh柚1plossresis切ncewerecharact—erized.Mean、vhile,也epapermakes10tsexperiments,suchast11ecementadso印tionquaIlt匆,di虢rentcementmonarconlpatibility,water-reducing万方数据

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