纸浆纤维的表面电荷分布及测定

Determination and Distribution of Surface Charges of Pulp Fibers

分析了漂白马尾松化学浆、漂白芦苇化学浆、马尾松热磨机械浆和废纸浆的长、中、短纤维含量以及它们的总电荷量和表面电荷量。结果表明浆种间纤维组分存在着较大的差别。纸浆纤维的总电荷量远大于表面电荷量,浆种间的电荷分布也大不相同,微细纤维的表面电荷量较高,木浆和废纸浆的表面电荷分布较均匀,芦苇浆的表面电荷量比木浆、机械浆和废纸浆的高,其长纤维组分与短纤维组分的表面电荷量相差较大。

Four pulps were sieved to long, middle and short fiber, and total charges and surface charges of the each fiber constituent were determined. The results showed that the differences in fiber constituent of the pulps were large. The total charges densities of the pulps were much larger than their surface charges. The surface charges of fine in the four pulps were high. The distribution of the surface charge of wood pulp and recycled pulp was more even than that of mechanical pulp and reed pulp.