新型阳离子AKD施胶剂的制备及应用

Preparation and Application of a Novel Cationic Alkyl Ketene Dimer Sizing Agent

研究了一种新型阳离子AKD施胶剂的制备及应用,将该阳离子AKD施胶剂与传统AKD施胶剂分别对阔叶木浆与草浆施胶,结果表明,在同等施胶条件下,阳离子AKD施胶剂的施胶性能均优于传统AKD施胶剂。由于阳离子AKD分子上接枝了具有高阳电荷的阳离子基团,故能更多地留着并定向排列分布在纤维表面上,因此比传统AKD施胶剂具有更好的施胶效果。

The preparation of a novel cationic alkyl ketene dimer sizing agent and its application were investigated in this paper. The results showed that： sizing in the same conditions as for the conventional AKD size, the sizing degree of wood pulp increase by 30% when 0.2% no- vel cationic AKD is used; the sizing degree of straw pulp increases by 20% when 0.3% novel size is added. Therefore, the novel cationic AKD sizing agent has better sizing performance than traditional AKD sizing agent.