中性施胶系统细小组分的留着特性  

Fines Retention Performance in Neut ral Sizing System

作　　者：王晓宁[1] 朱勇强[1] 张向丽[1] 

机构地区：[1]上海理工大学造纸湿部化学研究所,200093

出　　处：《纸和造纸》2001年第6期32-34,共3页Paper and Paper Making

摘　　要：本文采用动态滤水仪对漂白木浆AS39中性施胶系统细小组分留着特性进行了初步的探讨。结果表明,在AS39中性施胶系统中,①流体剪切力对细小组分的留着有显著的影响,当动态滤水仪的搅拌速度从300r/min提高到900r/min时,细小组分留着率下降了近45%;②矾土、两性淀粉和阳离子聚丙烯酰胺(CPAM)助留剂均能改善细小组分的留着,1%的矾土,1.5%两性淀粉或200g/t的CPAM可使细小组分的留着率提高18%～40%;③填料碳酸钙的添加会明显降低细小组分的留着率。The retention performance of wood pulp sized with AS39neutral rosin size were preliminary studied in this paper.The test resul ts show that:(1)Hydrodynamic forces have their mark ed influence on fines re-tention of wood pulp in AS39system.T he suitable stirring speed of DDT is 500r /min for wood pulp samples in the presence of retention aids.(2)Amphoteric starch,Al2(SO4)3 and CPAM have a good improvement on th e fines re-tention.With the addition of 1%Al2(SO4)3 or 1.5%amphoteric starch or 200g /t CPAM,the fines retention are increased by 18%～40%.(3)With the addition of CaCO 3 ,the fines retention decrease a lot.

关 键 词：动态滤水 留着率 AS39中性施胶系统 细小组分 湿部化学 造纸 

分 类 号：TS71[轻工技术与工程—制浆造纸工程]