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研究CPAM/CMC两种聚电解质层间自组装对废旧瓦楞纸(OCC)浆强度性能的影响,对层间自组装过程中浆料的Zeta电位变化进行了测试,并借助扫描电镜(SEM)和傅里叶红外光谱(FT-IR)对吸附聚电解质的OCC纤维表面进行了分析。结果表明,CPAM/CMC自组装对纸页的增强效果较好,裂断长、耐折度及环压指数分别提高了82.82%、550.00%、92.88%,浆料滤水时间减少,滤水性能明显改善。浆料Zeta电位随聚电解质自组装层数的增加而不断变化,表明纤维表面自组装过程源于阳离子和阴离子聚电解质的静电作用力。SEM、FT-IR表征显示,纤维表面确实吸附有聚电解质复合物。
The influence of CPAM / CMC self-assembly on the strength properties of waste corrugated paper (OCC) pulp was studied. The change of Zeta potential of the slurry during the self-assembly process of the interlayer was tested. The scanning electron microscopy (SEM) Fourier transform infrared spectroscopy (FT-IR) analysis of polyelectrolyte OCC fiber surface. The results showed that the self-assembly of CPAM / CMC enhanced the paper sheet, and the breaking length, the folding endurance and the ring pressure index increased by 82.82%, 550.00% and 92.88% Significant improvement. The Zeta potential of the slurry changes with the number of self-assembled polyelectrolyte layers, indicating that the self-assembly of the fiber surface is due to the electrostatic forces acting on the cationic and anionic polyelectrolytes. SEM, FT-IR characterization showed that polyelectrolyte complexes were indeed adsorbed on the surface of the fibers.