CPAM-膨润土双元体系在新型硅酸钙加填纸上的应用  

Application of CPAM-bentonite Micro-particle System in Papermaking with Using Fly Ash Based Calcium Silicate as Filler

作　　者：吴盼[1] 张美云[1] 王建[1] 刘峰[1] 宋顺喜[1] 

机构地区：[1]陕西科技大学轻工与能源学院,陕西省制浆造纸重点实验室,教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《中国造纸》2013年第9期5-10,共6页China Pulp & Paper

基　　金：国家自然科学基金(项目编号:31170560);陕西科技大学研究生创新基金资助

摘　　要：比较分析了CPAM-膨润土双元微粒助留体系对新型硅酸钙(FACS)和研磨碳酸钙(GCC)加填浆料的留着、滤水及纸张性能的影响。实验结果表明,CPAM-膨润土双元体系应用于FACS加填纸中时,CPAM需求量高于GCC加填的;膨润土用量为0.1%时,CPAM用量的增加,能改善FACS加填纸料的留着性能,但对其滤水性能却有不利影响;CPAM用量为0.08%时,随着膨润土用量的增加,FACS加填纸料Zeta电位的下降比GCC加填的更快;膨润土的用量低于0.2%时,膨润土用量的增加对纸料的首程留着率和滤水性能都有利。CPAM用量为0.08%、膨润土用量为0.1%时,FACS加填纸白度与GCC加填纸张相当,但是不透明度比GCC加填纸高;FACS加填纸的抗张指数比GCC加填纸低11.2%,撕裂指数比GCC加填纸低21.0%;FACS加填纸张的松厚度比GCC加填纸高41.7%。加填纸张的扫描电镜对比发现,FACS能够较好地填充在纤维之间的缝隙中,可以看到纤维与填料之间有较好的交织。A fly ash based calcium silicate（ FACS）, with a highly porous surface structure, high specific surface area （121 m2/g）, and low bulk density （0.31 g/cm3 ） was used as filler in papermaking. In this paper, the application of CPAM-bentonite micro-particle retention and drainage system along with FACS was studied and its effect on drainage, retention and paper properties was investigated. The results from dy- namic retention and drainage tests showed that, the pulp containing FACS as filler consumed more CPAM than using GCC as filler. When bentonite dosage was 0.1%, with increasing of the amount of CPAM, FACS-filled pulp had better retention and worse drainage. When CPAM dosage was O. 08%, with increasing of bentonite less than O. 2% , drainage and retention behavior of FACS-filled pulp was obviously improved. The filled paper properties indicated that FACS filled paper had similar brightness, higher opacity, 11.2% lower tensile index, 21.0% lower tear index, 41.7% higher bulk than those loaded with GCC. SEM observation of the paper sheets loaded with FACS figured that the fibers were well intertwined with FACS.

关 键 词：FACS CPAM-膨润土微粒体系 留着和滤水性能 成纸性能 

分 类 号：TS727.3[轻工技术与工程—制浆造纸工程]