淀粉-硬脂酸钠改性GCC的制备  

Preparation of Starch-Sodium Stearate Modified GCC

作　　者：樊慧明[1,2] 王命[1,2] 张成[1,2] 刘建安[1,2] 

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

出　　处：《纸和造纸》2014年第3期52-56,共5页Paper and Paper Making

基　　金：广东省科技计划项目(2011B010300015);科技部科技型中小企业创新基金(12C26214405137)

摘　　要：针对造纸常用填料GCC加填时纸张强度严重下降的问题,利用淀粉-硬脂酸反应形成复合物包覆在碳酸钙表面的方法对其表面改性,探索最佳工艺条件。结果表明:淀粉-硬脂酸钠复合物改性GCC的较佳工艺条件为:淀粉用量为GCC质量的100%,硬脂酸钠用量为GCC质量的3%,包覆反应温度85℃,包覆反应时间40 min。改性GCC粒径从14.8μm增大到36.2μm,且分布范围变窄。When fillers GCC was added to stock, strength of paper will be declined seriously. The surface of GCC was modified by starch-sodium stearate complexes, the optimum conditions was explored. The results showed that preferred conditions of starch- sodium stearate modified GCC were： 100% starch and 3% sodium stearate in the amount of GCC, coating temperature was 85℃, coated stirring time was 40 min. The average particle size of modified GCC changed from 14.8 μm to 36.2 μm and the particle size distribuation was narrow.

关 键 词：GCC 淀粉-硬酯酸钠 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]