中文摘要：

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。

英文摘要：

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.