高固含量高岭土分散体系特性的研究  

Study of Rheological Properties of High-solid Clay Disperse System

作　　者：王奇琦[1] 张凤山[2,3,4] 景宜[1] 曹春昱[2] 刘忠[3] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037 [2]中国制浆造纸研究院,北京100102 [3]天津科技大学天津市制浆造纸重点实验室,天津300457 [4]华泰集团有限公司,山东广饶257335

出　　处：《中国造纸学报》2014年第1期28-32,共5页Transactions of China Pulp and Paper

摘　　要：采用Minitab软件中的田口设计实验方法,研究了高固含量高岭土所构成分散体系的特性,分析了分散速度、分散剂和NaOH用量对分散性能的影响,同时研究了高固含量高岭土分散体系的回黏现象。研究结果表明,分散剂用量是影响高岭土分散效果的主要因素;当固含量74%、分散剂用量0.05%、NaOH用量0.01%、转速2500 r/min、分散时间15 min时,高岭土分散体系黏度最低,分散效果最佳。In this paper,properties of disperse system with high solid content of clay were studied through a Taguchi Design of Minitab method,the influence of disperse speed,dispersant and NaOH dosage were discussed,and the time of after-take phenomenon occurred with high solid concent was researched.The results showed that the amount of dispersant is the major factor to affect dispersing efficiency.A suitable condition to prepare the clay suspension can be considered as follows：solid content of 74％,the amount of dispersant 0.05％,and the amount of NaOH 0.01％.The dispersing was conducted at a speed of 2500 rpm for 15 min,and the acquired suspension showed the lowest viscosity and the best performance.

关 键 词：高岭土 高固含量 分散体系 回黏 

分 类 号：TS758[轻工技术与工程—制浆造纸工程]