单元和双元体系下细小纤维-碳酸钙共絮聚的对比研究  

Comparative Study on the Mechanism of Co-Flocculation of Fine Fiber-CaCO_3 under the Single and Dual System

作　　者：任建晓[1] 林涛[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纸品开发重点实验室,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12期35-39,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絮聚。在CPAM与CPAM/膨润土两种体系下,研究不同CPAM添加量对细小纤维-碳酸钙浆料的电性、共絮聚团表面电荷、白水阳离子需求量、留着性能的影响,并研究CPAM添加量与膨润土用量对细小纤维-碳酸钙共絮聚团的大小及分布的影响。结果表明:与CPAM单元体系相比,CPAM/膨润土微粒助留体系的Zeta电位变化幅度更小、共絮聚团的表面电荷更低;在CPAM单元体系与CPAM/膨润土微粒助留体系中,随着CPAM添加量与膨润土添加量的不断增加,共絮聚团的平均弦长都在不断增大。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. Under the two system of CPAM and CPAM/bentonite, the effects of different CPAM on the floc surface, flocs＇s surface negative charge and the cationic demand of white water of fine fiber-CaCO3 were studied, then the effects of the dosage of CPAM and the dosage of bentonite on the size and distribution of co-flocculation of fine fiber-CaCO3 were studied. The results showed that compared with the CPAM, the Zeta potential varied smaller and the surface charge of co-flocculation in the CPAM/bentonite varied lower. With the increasing of the dosage of CPAM and bentonite, the average length of co-flocculation are increasing.

关 键 词：P-RC APMP CPAM CPAM 膨润土 共絮聚 

分 类 号：TS71[轻工技术与工程—制浆造纸工程]