Department of Material Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, China.
China Tobacco Yunnan Reconstituted Tobacco Co., Ltd., Kunming, Yunnan, 650106, China.
Carbohydr Polym. 2018 Sep 15;196:102-109. doi: 10.1016/j.carbpol.2018.04.125. Epub 2018 May 1.
To study the effect of guar gum and chitosan on the micromorphology of tobacco pulp and the retention mechanism of different retention aids by the MorFi Compact fiber analyzer, changes in the micromorphology of the tobacco pulp fibers and the fiber fines were studied by adding different dosages of guar gum and chitosan. The results indicated that the retention mechanisms of guar gum and chitosan on fibers and fiber fines were different. Addition chitosan, components of pulp intertwined to form a spatial reticular through the neutralization effect that consists of tobacco fiber bundles, fiber fines and fillers. The reticular size increased, fiber fines (especially those below the detection limit) and fillers bonded with chitosan to combined with fiber and fiber fines. Guar gum wrapped the fiber through "nucleation and growth" to achieve the retention effect. Microstructures of the handsheets were observed using SEM, and the change in the fiber curl rate was analyzed to verify the effects of mechanisms of two different retention aids.
为了通过 MorFi Compact 纤维分析仪研究瓜尔胶和壳聚糖对烟浆微观形貌的影响以及不同留着助剂的留着机理，通过添加不同剂量的瓜尔胶和壳聚糖研究了烟浆纤维和纤维细小物的微观形貌变化。结果表明，瓜尔胶和壳聚糖对纤维和纤维细小物的留着机理不同。添加壳聚糖后，通过纤维束、纤维细小物和填料之间的中和作用，组成成分相互交织形成空间网状结构。网状尺寸增大，纤维细小物（尤其是检测限以下的纤维细小物）和填料与壳聚糖结合并与纤维和纤维细小物结合。瓜尔胶通过“成核和生长”包裹纤维，从而达到留着效果。使用 SEM 观察手抄片的微观结构，并分析纤维卷曲率的变化，以验证两种不同留着助剂作用机理的效果。
