用高浓盘磨对杨木P-RC APMP进行高浓磨浆,分析高浓磨浆对纤维特性和成纸性能的影响。结果表明,经高浓磨浆后的浆料随着游离度的下降,纤维平均长度下降,细小纤维含量增加,卷曲指数、扭结指数先提高后下降。成纸的松厚度下降,内结合强度和抗张指数均逐步提高,撕裂指数先升高后降低,光散射系数和不透明度均有所降低。 High-density disk mill was used to pulverized poplar P-RC APMP. The effect of high-consistency pulping on fiber properties and paper properties was analyzed. The results showed that the average fiber length decreased and the content of fine fibers increased with the decrease of freeness after high consistency refining. The curling index and kink index first increased and then decreased. The looseness of the paper decreased, the internal bond strength and tensile index increased gradually, the tear index first increased and then decreased, and the light scattering coefficient and opacity decreased.