中国造纸学报2011，Vol.26Issue(1)：12-16,5.
阳离子聚合物对混合办公废纸浮选脱墨效果的影响
Effect of Cationic Polymers on Flotation Deinking Efficiency of MOW
摘要
Abstract
Interface and colloid characterisitics of MOW deinking pulp dispersion system were investigated.Effects of several cationic polymers ( CPAM, PAC, CS) on the Zeta potential and surface tension of this pulp dispersion system under the conditions of optimal chemical deinking process were researched.At the same time, the relations between the surface and colloid characterisific changes and flotation efficiency (brightness and residual ink particles content of the pulp) were studied.Changes of deinked pulp fibers morphology and ink particles distribution before and after changing colloidal environment were analyzed by scanning electron microscopy (SEM).The results showed that interface and colloid chemical properties can be changed by adding a small amount of cationic polymer into the deinking system.The appropriate interface and colloid at environment is conducive to the removal of ink particles.When Zeta potential is - 14.0 ～ - 12.0 mV and the surface tension is 60.0 ～ 63.0 mN/m, the brightness and ink removal efficiency of MOW deinking pulp are improved compared to the optimal conventional chemical deinking by flotation.SEM images indicated that the fiber surface becomes clearer after adding a small amount of polymers to maintain the appropriate interface and colloid chemical conditions, and the small ink particles, fines and other impurities content are also reduced.关键词
阳离子聚合物/办公废纸/脱墨/界面及胶体化学分类
轻工纺织引用本文复制引用
张效林,韩卿..阳离子聚合物对混合办公废纸浮选脱墨效果的影响[J].中国造纸学报,2011,26(1):12-16,5.基金项目
陕西省教育厅基金项目(09JK677) （09JK677）
西安理工大学创新基金项目(104-210803). （104-210803）
