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纤维表面特性直接影响纸页的各项性能。在机械法制浆过程中,由于木片预处理条件和磨浆工艺的不同,导致纤维表面不尽相同。纤维表面暴露较多的S2层或者具有大量胞间层木素的沉积都会大大影响纤维表面之间的结合和纸张性能。本文在纳米尺度下,研究不同机械浆纤维的表面化学和物理结构,所用的机械浆包括TMP、CTMP、BCTMP以及蒸汽爆破浆。采用X射线光电子能谱分析,原子力显微镜和扫描电镜等手段对纤维的表面化学和表面形态进行了观测。本文还就纤维表面特性对纤维间结合和纸张性能的影响进行了研究,并对这项研究的结果进行了综述。
Fiber surface properties directly affect the performance of the paper. In the mechanical pulping process, due to different pretreatment conditions and refining process of the chips, the fiber surfaces are different. The S2 layer with more fiber surface exposure or the deposition with a large amount of intercellular lignin greatly affects the binding and paper properties between the fiber surfaces. In this paper, the surface chemistry and physical structure of different mechanical pulp fibers are studied at the nanoscale. The mechanical pulp used includes TMP, CTMP, BCTMP and steam explosion pulp. X-ray photoelectron spectroscopy, atomic force microscopy and scanning electron microscopy were used to observe the surface chemistry and surface morphology of the fibers. The paper also studied the effect of fiber surface properties on the fiber-to-fiber bonding and paper properties. The results of this study were also reviewed.