PEI/APAM助留体系下细小纤维-碳酸钙共絮聚的研究  

Research on co-flocculation of fines-calcium carbonate Research on co- nes-calcium carbonate under a dual system of PEI/APAM

作　　者：林涛[1,2,3] 任建晓[1,2,3] 殷学风[1,2,3] 李斌[1,2,3] 宋建伟[1,2,3] 李雪[1,2,3] 

机构地区：[1]陕西科技大学轻工与能源学院 [2]陕西省造纸技术及特种制品开发重点实验室 [3]教育部轻化工助剂化学与技术重点实验室,西安710021

出　　处：《中华纸业》2014年第4期10-14,共5页China Pulp & Paper Industry

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-RCAPMP细小纤维与碳酸钙进行共絮聚,研究了PEI/APAM微粒助留体系下,不同的PEI用量、APAM用量及剪切力对细小纤维-碳酸钙共絮聚的影响。结果表明:随着PEI用量的增加,PEI/APAM体系所形成的共絮聚团的表面负电荷在不断降低,浆料的Zeta电位绝对值在不断变小;在PEI/APAM体系中,当PEI用量为0.25%、APAM用量为0.03%时,细小组分的留着效果好;在高剪切作用下,共絮聚团的浆料留着性能与滤水性能在不断降低。Polar P-RC APMP pulp was chosen as raw materials for fines generation and collecting, then the P-RC APMP ifnes and calcium carbonate were co-lfocculated before they added into standard ifber fraction to make ifne paper. Effect of different dosage of PEI and APAM, shear force on the co-lfocculation of ifnes-calcium. The results show that with the increasing dosage of PEI, the negative surface charge of co-lfocculation is reduced under the system of PEI/APAM, the Zeta potential of pulp is reduced, when the dosage of PEI is 0.25%and the dosage of APAM is 0.03%under the system of PEI/APAM, the retention of ifnes is better through the FBRM. The retention of pulp and the property of ifltration are reduced under the high shear force.

关 键 词：P-RCAPMP 细小纤维 PEI APAM助留体系 剪切力 共絮聚 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]