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比较漂白亚硫酸氢镁稻草浆中浓(12%)和高浓(20%)打浆对浆料纤维形态、光学性能和物理性能的影响。结果表明:在纤维形态方面,中浓打浆相比高浓打浆,纤维重均长度要大,而纤维宽度、粗度、细小纤维的含量、纤维卷曲指数和扭结指数都要小;在光学性能方面,随着打浆的进行,纸张白度、不透明度及光散射系数等光学性能都有一定程度的下降,高浓和中浓打浆并无明显的区别;在物理性能方面,中浓打浆的抗张指数和撕裂指数比高浓打浆要大。
The effects of concentrated (12%) and concentrated (20%) beating on the morphology, optical properties and physical properties of bleached fiber were compared. The results show that in the aspect of the fiber shape, the weight average length of the fiber is larger than that of the high concentration beating, and the fiber width, , With the progress of beating, optical properties such as paper whiteness, opacity and light scattering coefficient all decreased to a certain extent, there was no obvious difference between high-consistency and middle-consistency beating. In terms of physical properties, Index and tear index than high-concentration beating larger.