β-环糊精在纤维素纤维上的固载及其对纸张性能的影响  

Preparation of Cellulose Fiber Immobilized with β-cyclodextrin and Its Effect on Paper Properties

作　　者：董超[1] 梁祥涛[1] 钱丽颖[1] 何北海[1,2] 肖惠宁[1] 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]华南理工大学造纸与污染控制国家工程研究中心,广东广州510640

出　　处：《造纸科学与技术》2012年第6期49-53,142,共6页Paper Science & Technology

基　　金：973计划项目(2010CB732201);华南理工大学中央高校基本科研业务费(2011ZM0098)专项资金资助

摘　　要：介绍了将β-环糊精(β-CD)固载在纤维素纤维上的方法,首先合成柠檬酸-β-环糊精(CA-β-CD)预聚体,研究了反应时间、柠檬酸用量、次磷酸钠浓度以及液固比对CA-β-CD预聚体中羧基含量的影响,确定了合成预聚体的最优化条件。将所合成的预聚体与纤维进行反应,对固载纤维的结构进行了表征,同时探讨了固载后纤维对纸张强度性能的影响。结果表明:合成CA-β-CD的最优化条件是n(SHP)∶n(CA)∶n(β-CD)=1∶2∶1,100℃下反应1.5h,液固比为2∶5,并且在此条件下合成的1g CA-β-CD与0.5g绝干纤维反应,纤维上CA-β-CD的固载率可达12.5%。随着固载纤维添加量的增加,纸张的抗张强度下降,撕裂度先升高后降低。当固载纤维的添加量为50%时,纸张的抗张指数下降了9.7%,撕裂指数上升了15.3%。The main uses of energy on a paper machine are in the water removal processes. In the forming section, 97% of the water is removed from the paper slurry through gravity, inertia, and vacuum. In the press section, an- other 2% is removed through a nip of nip roils, vacuum, and press felts which impact sheet properties and strength. And even though the dryer section removes the least amount of water, it is the highest consumer of ener- gy. This paper will focus on the key products designed to reduce energy consumption and the actual cases demon- strating the results experienced both in roll cover and clothing products of paper machine.

关 键 词：纤维素纤维 Β-环糊精 固载率 纸张性能 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]