【作者】 贾荣仙；

【Author】 Rongxian Jia;Chemical Engineering Institute,Anhui University of Science and Technology;

【机构】 安徽理工大学化工学院；

【摘要】 壳聚糖的季铵盐改性物是一种重要的壳聚糖的衍生物,本文将壳聚糖(CTS)与2,3-环氧丙基三甲基氯化铵(GTA)发生醚化反应制备壳聚糖的季铵盐(HTCC),优化了制备壳聚糖季铵盐的工艺参数,确定最佳的工艺参数为:GTA与壳聚糖的质量比为4:1,反应温度为70℃、反应时间为9h、PH值为7.0时,产物取代度最高可达87.16%。将在优化的工艺条件下制备的壳聚糖季铵盐产品,用于安徽淮南的城市污水处理后,污水的浊度去除率达到98.58%。更多还原

【Abstract】 Quaternary ammonium salt of chitosan modification is an important derivative of chitosan,the chitosan(CTS) and 2,3-three epoxy propyl trimethyl ammonium chloride(GTA) preparation of chitosan quaternary ammonium salt has etherification system(HTCC),the process parameters for preparation of quaternary ammonium salt of chitosan was optimized,determining process the best parameters as:the quality of GTA and chitosan ratio 4:1,reaction temperature 70 ℃,reaction time is 9h,the p H value is 7,the substitution degree of the product can be up to 87.16%.The preparation of chitosan quaternary ammonium salt products under the optimum conditions,to Anhui Huainan city sewage treatment,sewage turbidity removal rate can reach 98.58%.更多还原