摘要
采用丙烯酰胺(AM)为分子骨架,丙烯酰氧乙基三甲基氯化铵(DAC)和甲基丙烯酸二甲氨基乙酯(DMAEMA)为阳离子单体,通过水溶液聚合的方法,合成一种新型有机高分子材料——阳离子絮凝剂PADD。并确定其合成的最佳反应条件:pH=3,聚合反应温度为30℃,反应单体质量分数为25%,引发剂过硫酸钠(Na2S4O8)和亚硫酸钠(Na2SO3)质量分数均为0.10%,药剂单体用量配比为40∶30∶30,聚合反应时间为6h。之后用粘度法测定产物特性粘度并计算了产物的相对分子质量,运用红外光谱对聚合物结构进行分析与表征,使用合成的絮凝剂对选煤厂煤泥水进行絮凝沉降试验,研究其絮凝性能。
In this paper,acrylamide(AM)is used as molecular skeleton,acrylamide ethyl three methyl ammonium chloride(DAC)and dimethyl methacrylate(DMAEMA)are cationic monomers,and a new type of organic polymer material is synthesized by aqueous solution polymerization cationic flocculant PADD.And the optimum reaction conditions are determined for the synthesis:p H=3,polymerization temperature is 30℃,reaction monomer mass fraction is 25%,initiator sodium sulfate(Na2S4O8)and sodium sulfite(Na2SO3)quality fraction is 0.1%.The dosage ratio of medicament monomer is 40∶30∶30,and the polymerization time is 6 h.Afterwards,the viscosity of the product is determined by viscosity method and the relative molecular mass of the product is calculated,the polymer structure is analyzed and characterized by infrared spectroscopy,and the flocculation and sedimentation effect of the synthetic flocculant for coal slurry in preparation plant is studied.
作者
赵翔
黄波
刘国伟
ZHAO Xiang;HUANG Bo;LIU Guo-wei(School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)
出处
《煤炭工程》
北大核心
2020年第1期138-142,共5页
Coal Engineering
