摘要
采用沉淀分级的方法对所制备的聚丙烯酸钠粗品进行了分级,得到了具有不同分子质量及分布指数的聚丙烯酸钠。通过静态沉积法研究了不同分子质量及分布的聚丙烯酸钠与其阻垢性能的关系。研究结果表明,聚丙烯酸钠分子质量越小(最佳相对分子质量范围为小于1 900)、分布越窄越有利于其对碳酸钙阻垢性能的提高。
The prepared crude sodium polyacrylate has been accomplished by fractional precipitation process ,so as to obtain sodium polyacrylate whose molecular weight and distribution indexes are different. The relationship be-tween sodium polyacrylate,whose molecular weight and distribution indexes are different,and scale inhibition ca-pacity is studied by static deposition. The research results show that the smaller the molecular weight （the best relative molecular mass range is less than 1 900） is,the narrower distribution of sodium polyacrylate,and the more advanta-geous for the improvement of the scale inhibition capacity for calcium carbonate.
出处
《工业水处理》
CAS
CSCD
北大核心
2015年第3期78-81,共4页
Industrial Water Treatment
关键词
聚丙烯酸
分级沉淀
分子质量及分布
阻垢性能
polyacrylic acid
fractional precipitation
molecular weight and distribution
scale inhibition capacity
