Stickies deriving from the recycled paper had multiple deleterious effects on the paper chemicals, machine run-nability and paper equality. The aim of this study was to synthesize citosan composite microspheres and remove stickies in the recycled paper by microspheres. Citosan-montmorillonite and chitosan-ferroferric oxide composite microspheres were prepared by emulsion cross-linking method. The surface morphology of microparticels was analyzed by Digital microscope (DM) and Scanning electron microscope (SEM). The removal effects of composite microspheres and talc on stickies were compared. It was found that CS-MMT microspheres had excellent thermal stability than chitosan microspheres and CS-Fe₃O₄ microspheres. The zeta potential of stock increased with the addition of talc,CS-MMT or CS-Fe₃O₄. Comparing with the plate talc, CS-MMT or CS-Fe₃O₄ microspheres adsorbed more easily the stickies and removed DCS in the recycled paper. Meanwhile, CS-MMT or CS-Fe₃O₄ had less negative impact on the strength of paper than talc. It contributed that there was a large number of hydroxyl groups on the surface of composite microspheres. CS-Fe₃O₄ had magnetic characteristics and the ability of removing Dissolved and Colloidal Substances (DCS) in white water were superior to CS-MMT.

源自再生纸的胶粘物对纸化学品，机器运行性能和纸张均等性具有多种有害影响。这项研究的目的是合成壳聚糖复合微球，并通过微球去除回收纸中的胶粘物。采用乳液交联法制备了壳聚糖-蒙脱土和壳聚糖-三氧化二铁复合微球。用数字显微镜（DM）和扫描电子显微镜（SEM）分析微粒的表面形态。比较了复合微球和滑石粉对胶粘剂的去除效果。发现CS-MMT微球比壳聚糖微球和CS-Fe ₃ O ₄具有优异的热稳定性。微球。随着滑石粉，CS-MMT或CS-Fe ₃ O ₄的加入，储备液的ζ电位增加。与平板滑石相比，CS-MMT或CS-Fe ₃ O ₄微球更容易吸附胶粘物并去除再生纸中的DCS。同时，CS-MMT或CS-Fe ₃ O ₄对纸张强度的负面影响小于滑石粉。这说明复合微球表面存在大量羟基。CS-Fe ₃ O ₄具有磁性，去除白水中溶解和胶体物质（DCS）的能力优于CS-MMT。