本刊讯据《造纸信息》报道,科研人员发现,在OCC浆中单独添加高分子质量壳聚糖和低分子质量壳聚糖、阳离子淀粉和聚乙烯醇,对成纸抗张强度有显著影响,而且对干抗张强度的影响大于对湿抗张强度的影响。研究结果表明,与未处理样(对照样)相比,向OCC浆中添加高分子质量壳聚糖可以更有效地提高成纸抗张强度;添加低分子质量壳聚糖不能显著改变成纸性能。与未添加聚合物相比,加入聚合物会使成纸湿伸长率 According to “paper information” report, researchers found that the addition of high molecular weight chitosan and low molecular weight chitosan, cationic starch and polyvinyl alcohol in the OCC pulp alone had a significant effect on the tensile strength of the paper , And the impact on dry tensile strength is greater than wet tensile strength. The results show that the addition of high molecular weight chitosan to the OCC pulp can increase the tensile strength of the paper more effectively than the untreated sample (control); the addition of low molecular weight chitosan can not significantly change the paper properties . The addition of polymer resulted in wet elongation of the paper compared to the non-added polymer