THE PREPARATION OF ALUMINUM-AMMONIUM CATIONIC STARCH

摘要：

The advantages that use wet-process to compound aluminum-ammonium cationic starch (ACS) are short reaction time and simple process. The optimum reaction conditions are: the amount of PAC-PDA is 20％, the reaction temperature is 90 , ℃ and reaction time is 60min. Cationic starch with DS of 0.034 (slightly higher than outsourcing CS (0.03)) and RE of 62.5％ was obtained. The fluidity of aluminum-ammonium cationic starch synthesized under this condition is good, its viscosity is about 110mPa.s; charge density is 0.6146meq / g, also higher than the outsourcing one (0.4968 meq / g); solid content is about 4％. The retention effects when using ACS are better than CS whether in the deinking pulp or in the chemical bleaching; and when ACS used in a smaller amount, it goes with dual function of retention and enhanced.

关键词： aluminum-ammonium cationic starch (ACS) cationic starch (CS) Wet-process retention effect

作者: Chen Meiyan Yan Yongxiang Zheng Xionglei Chen Qijie

作者单位: Changsha University of Science and Technology,Changsha, 410114, China

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1629-1632

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）