纸浆纤维-壳聚糖沉积物的制备及其助留助滤性能  

Preparation of Fibres-Chitosan Deposition and Its Retention and Drainage Performance

作　　者：谢玮[1] 刘振华[1] 

机构地区：[1]梧州学院,广西梧州543002

出　　处：《纸和造纸》2014年第7期38-42,共5页Paper and Paper Making

基　　金：广西教育厅高等学校科学研究项目(编号:200103YB134);梧州学院科研项目(编号:2010B007)

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30 min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。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.

关 键 词：阳离子纸浆纤维(CPF) 造纸助留助滤剂 壳聚糖(CS) 漂白针叶木浆 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]