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首页> 外文期刊>Applied Surface Science >Mapping Of The Cationic Starch Adsorbed On Pulp Fibers By Tof-sims
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Mapping Of The Cationic Starch Adsorbed On Pulp Fibers By Tof-sims

机译：Tof-sims对纸浆纤维上吸附的阳离子淀粉的映射

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Cationic starch (CS) is routinely used in the papermaking process to improve the dry strength or printability of paper. The effectiveness depends on the distribution of the starch on the pulp fiber, and in this study, time-of-flight secondary ion mass spectrometry was used to investigate this distribution. The characteristic peak at 58m/z was applied to map the CS. Based on the imaging analysis of the handsheets with the CS as an internal additive, the distribution of CS became more uniform with decreasing freeness. The amount of adsorbed CS increased with increasing fiber length and was lower on vessels than on other fibers. These results were related to fibrillation. From the analysis of handsheets with CS as an external additive, the penetration depth of the starch into base paper increased with decreases in the sizing degree of the base paper.
机译：造纸过程中通常使用阳离子淀粉（CS）来提高纸张的干强度或可印刷性。有效性取决于纸浆纤维上淀粉的分布，在这项研究中，使用飞行时间二次离子质谱法研究了这种分布。应用58m / z处的特征峰绘制CS。根据以CS作为内部添加剂的手抄纸的成像分析，CS的分布随着游离度的降低而变得更加均匀。 CS的吸附量随纤维长度的增加而增加，并且在容器上低于其他纤维。这些结果与原纤维化有关。通过以CS作为外部添加剂的手抄纸的分析，淀粉在原纸中的渗透深度随着原纸上浆度的降低而增加。

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