中文摘要：

在碱性水溶液中将溶解在5％醋酸溶液中的壳聚糖（CS）沉积在漂白针叶木硫酸盐浆纤维上制得阳离子纸浆纤维（CPF），采用FT-IR和XPS手段对其进行表征。结果表明：在反应温度20℃、反应时间30min的情况下，最佳合成条件为：CS用量0．5％、NaOH用量4％。制得的CPF能显著提高沉淀碳酸钙（PCC）填料的留着率，添加5％（对浆）的CPF即可使PCC的留着率从67．72％提高到71．47％，而添加0．05％的CPAM仅可使其提高到70．96％；同时CPF能够改善纸张的物理性能，添加CPF的麦草浆成纸的抗张强度和耐破强度要明显高于添加CPAM的，而基本不低于添加未改性加拿大漂白针叶木浆纤维的，且CPF能够改善麦草浆的滤水性能。

英文摘要：

In the deposition process, deposits of fiber-CS （CPF） were prepared by depositing the chitosan （CS） dissolved in 5% acetic acid onto Canada kraft pulp （CKP）. The CPF was characterized by FT-IR, SEM and XPS. The suitable preparative conditions were： 0.5% CS, 4% NaOH, 20℃ and 30 min. CPF could improve the retention of PCC filler significantly. With 5% CPF, the retention of PCC increased from 67.72% to 71.47%. The tensile and burst strength of the paper with CPF were higher than those with CPAM significantly, not lower than those with untreated CKP. CPF addition also had a positive effect on the improvement of stock drainage.