两性淀粉的制备及在废纸浆抄纸中的增强作用  

Preparation and Application of Amphoteric Starch as a Strength Agent in Wastepaper Pulp

作　　者：张友全[1] 张本山[1] 曾新安[1] 蔡开杰[2] 

机构地区：[1]华南理工大学轻化工研究所,广州510640 [2]华南理工大学制浆造纸工程国家重点实验室,广洲510640

出　　处：《中国造纸》2002年第5期13-16,共4页China Pulp & Paper

摘　　要：通过均匀设计实验,考察了在水和有机溶剂混合反应介质中及低温条件下一步法合成磷酸型季铵基两性淀粉的主要影响因素,以及这些因素对两性淀粉阴、阳离子取代度及反应效率的影响,并将两性淀粉作为增强剂应用于废纸浆抄纸,获得了比较满意的增强效果。The preparation of amphoteric starch in a process of cationization and phosphorylation simultaneously in the media of water and organic solvent was investigated,the factors influencing the substitution degree(DS)of anionic and cationic groups and reaction efficien-cy were also studied.The media of water and organic solvent allowed that phosphorylation could be conducted by using sodium tripolyphos-phate as an anionic agent at low temperature.The amphoteric starch showed excellent enhancement effect when it was used as a strength a-gent in wastepaper pulp,the paper burst index,tensile index and elongation could be increased54.81%,42.76%and37.53%,respec-tively.The enhancement effect was correlated with the DS and gram-ratio of anionic and cationic groups in amphoteric starch as well as the dosage of amphoteric starch itself.

关 键 词：两性淀粉 废纸浆 抄纸 增强作用 制备 增强剂 造纸 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]