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以马尾松硫酸盐浆为原料,借助多媒体显微镜及扫描电子显微镜(SEM),研究了复合绒毛化处理对纤维素纤维形态及微细结构的影响,并进一步探讨了复合绒毛化处理前后纤维中半纤维素含量的变化及纸浆的返黄值,最后将自制绒毛浆与商品绒毛浆进行了对比。结果表明,经复合绒毛化处理后,纤维表面更为光滑,呈现一定的卷曲,表面包覆层已经大面积去除,有利于提高纤维对水溶剂及其他化学试剂的可及度,进而改善绒毛浆的吸收性能。纤维中聚戊糖含量从8.65%降低到7.12%,降低了17.69%,纸浆返黄值为0.26,说明较短时间的复合绒毛化处理可以用于生产绒毛浆。与商品绒毛浆的对比结果显示,自制绒毛浆在耐破指数及吸收性能等主要指标方面均满足绒毛浆标准要求。
The effect of composite fluff treatment on the morphology and fine structure of cellulose fibers was studied by means of a multi-media microscope and a scanning electron microscope (SEM), using the masson pine sulphate pulp as raw material. The change of content and the return value of pulp, the final self-made fluff pulp and commercial fluff pulp were compared. The results showed that after the composite fluff treatment, the fiber surface is smoother, showing a certain degree of curling, the surface coating has been removed in large areas, which is beneficial to improve fiber accessibility to aqueous solvents and other chemical agents, thereby improving the fluff pulp Absorption performance. The content of pentose in the fiber decreased from 8.65% to 7.12%, decreased by 17.69%, and the value of yellowing to pulp was 0.26, which indicated that the shorter fluff treatment could be used to produce fluff pulp. Compared with the commodity fluff pulp, self-made fluff pulp meets the standard requirements of fluff pulp in terms of burst index and absorption performance.