PEI助留体系下细小纤维-碳酸钙共絮聚的研究  

Research of the Co-flocculation of the Fine-Calcium under PEI Single-Component System

作　　者：林涛[1] 任建晓[1] 殷学风[1] 宋建伟[1] 李雪[1] 

机构地区：[1]陕西科技大学轻工与能源学院,陕西省造纸技术及特种制品开发重点实验室,陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《纸和造纸》2013年第7期19-23,共5页Paper and Paper Making

基　　金：陕西省教育厅科技项目(11JK0644)

摘　　要：以杨木P-RC APMP为原料,对其进行筛分,并对P-RC APMP细小纤维与碳酸钙进行共絮聚,研究了PEI助留体系下,不同添加量、不同剪切力和作用时间下对絮聚团的电荷分布、粒径和强度等特性的影响,结果表明:随着PEI用量的增加,共絮聚团的表面电荷和浆料的Zeta电位不断增加,白水阳离子需求量减小,共絮聚团的平均弦长不断变小,浆料细小组分留着率和填料留着率不断上升;随着剪切力的不断增大,共絮聚团的尺寸都在不断减少,细小组分和填料的留着率也不断减小。Polar P-RC APMP pulp was chosen as raw materials for fines generation and collecting, then the P-RC APMP fines and calcium carbonate were co-flocculated before they added into standard fiber fraction to make fine paper. Effects of different dosage, different shear force and action time on the charge distribution, the size particle and strength of the co-flocculation of, granular texture were studied under the PEI single-component system. The results shows that with the increasing of PEI, the average length of co-flocculation is decreased, the retention of fines and fillers are increasing. With the increasing of shear force, the size of co-flocculation and the retention of fines and fillers are decreased.

关 键 词：P-RC APMP 细小纤维 共絮聚 PEI 剪切力 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]