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| Study of Rheological Properties of High-solid Clay Disperse System |
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| DOI： |
| Key Words:clay； high solid content； disperse system； affter-tack |
| Author Name | Affiliation | | 王奇琦1 | 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 | | 张凤山2,3,4,* | 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 | | 景 宜1 | 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 | | 曹春昱2 | 2.中国制浆造纸研究院，北京，100102 | | 刘 忠3 | 3.天津科技大学天津市制浆造纸重点实验室，天津，300457 |
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| Abstract: |
| 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． |
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