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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。
Poplar P-RC APMP was used as the raw material to screen the P-RC APMP fines and calcium carbonate. The effects of different loadings, different shear forces and effects Time on the flocculation of the charge distribution, particle size and strength and other characteristics of the results show that: with the PEI dosage increases, the flocculation of the surface charge and the slurry Zeta potential is increasing, the demand for white water cation less The average chord length of small and co-flocculation groups became smaller and smaller, the retention rate of fine components and the retention of fillers kept rising. As the shearing force increased, the size of co-flocs decreased , The retention of small components and fillers also continue to decrease.