壳聚糖用作纸张干增强剂已有较多的报道,但其粘度和脱乙酰度的大小对纸张增强效果影响的研究尚属空白。本文以漂白针叶木硫酸盐浆为原料,对较宽粘度范围和脱乙酰度范围的壳聚糖样品进行了筛选。以对木浆的增强效果为标准,从中选出了几种增强效果较好的样品,为壳聚糖的进一步改性奠定了基础。 Chitosan as paper dry enhancer has been more reported, but the viscosity and degree of deacetylation on the paper to enhance the effect of research is still blank. In this paper, bleached softwood kraft pulp as a raw material, a wide range of viscosity and degree of deacetylation chitosan samples were screened. Based on the enhancement effect of wood pulp, several samples with better enhancement were selected, which laid the foundation for the further modification of chitosan.