新型高分子水泥助磨剂的合成及应用  

Synthesis and Application of New Polymer Cement Grinding Aids

作　　者：张宇[1] 蒋传磊 李培[1] 温达[1] 矦贵海[1] 封元 寿崇琦[1] 

机构地区：[1]济南大学化学化工学院,济南250022 [2]山东山水集团有限公司,济南250022

出　　处：《建材世界》2015年第2期1-4,共4页The World of Building Materials

摘　　要：先用马来酸酐（MA）和二乙醇胺（DEA）合成了单体M,后与丙烯醇（AA）、烯丙基聚氧乙烯醚（B-400）用过硫酸胺（APS）作引发剂,在水溶液中通过自由基聚合合成新型高分子水泥助磨剂,确定了最佳单体摩尔比：M∶AA∶B-400=1.0∶1.2∶0.5,引发剂用量为单体总质量的4.0%。将该助磨剂应用于水泥粉磨试验,并与空白对比：45μm筛余量降低34.3%;3~32μm细颗粒的含量提高了18.2%;3d,28d的抗压强度分别提高了15.7%,13.7%。The small monomer M was synthesized with maleic anhydride（MA） and diethanolamine（DEA）. The M and allyl alcohol （A.A） were then added into allyl polyethenoxy ether（B-400） to produce polymer cement grinding aid by aqueous solution polymerization, under the initiating effect of ammonium peroxydisulfate, the optimal molar ratio of polymer cement grinding aid was M ： AA ： 13-400=1 ： 1.2 ： 0. 5,amount of initiator 4. 0%. The results of the ce- ment grinding aids test compared with black were as follows： sieved particles of 45μm reduced 34. 8%; the grains size of 3-32 μm increased 18. 2%; 3 d, 28 d compressive strength of cement pastes were increased by 15.7% and 13. 7%.

关 键 词：水泥助磨剂 高分子 助磨效果 水泥强度 

分 类 号：TQ172.463[化学工程—水泥工业]