改性聚天冬氨酸的阻垢性能研究  

Study on Scale Inhibiting Performance of Modified Polyaspartic Acid

作　　者：宋鸿梅[1] 赵彦生[1] 刘永梅[1] 刘成岑[1] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024

出　　处：《化学与生物工程》2008年第7期14-16,共3页Chemistry & Bioengineering

基　　金：山西省科技攻关项目(2006031104-03);山西省自然科学基金资助项目(20051021)

摘　　要：以聚琥珀酰亚胺(PSI)和2-氨基乙醇(AE)为原料,在水体系下合成了一种含羟基的聚天冬氨酸衍生物——羟化聚天冬氨酸(HPAP)。用红外光谱和核磁共振对反应产物进行了结构表征。研究了HPAP在不同水质中对碳酸钙的阻垢性能,探讨了聚合物用量、Ca2+浓度、HCO3-浓度和温度对其阻垢性能的影响。结果表明,HPAP对碳酸钙具有良好的阻垢性能,聚合物用量为6 mg.L-1时,HPAP对碳酸钙阻垢率达到93.68%,且其阻垢性能随Ca2+浓度、HCO3-浓度和温度的提高而降低,但在实验范围内降低幅度较小,阻垢率均达80%以上。Polyaspartic acid derivatives with hydroxyl （HPAP） was synthesized using polysuccinimide （PSI） and ethanolamine（AE） in water medium and was characterized by IR and ^1HNMR. The scale inhibiting performance of HPAP and the effects of HPAP dosage, Ca^2＋ concentration, HCO3^- concentration and temperature on the scale inhibiting performance to CaCO3 were studied. The results showed that HPAP had excellent scale inhibiting performance to CaCO3. At the dosage of 6 mg·L^-1 , the scale inhibiting rate of HPAP to CaCO3 was 93.68%. The scale inhibiting performance declined slightly as Ca^2＋ concentration, HCO3^- concentration and temperature increased.

关 键 词：羟化聚天冬氨酸 合成 阻垢性能 

分 类 号：TQ085.4[化学工程]