摘要
主要目的是确定不同的漂白方法对硫酸盐针叶木浆纤维表面特性的影响,包括老化前和老化后。通过测量水中的动态接触角(DCA)和浆中纤维的电子光谱来检测。实验表明,漂白浆中纤维表面的不同是因为漂白方法不同。全无氯漂白(TCF)的纤维动态接触角(DCA)始终比较高一些。纤维的特性在贮藏六个月后发生了改变,TCF的DCA比ECF的更显著。贮藏后纤维的接触角变大说明可能是抽出物的迁移或木素从纤维壁中到了表面,也可能是纤维表面的组分发生了变化而变的更加疏水。
The aim of this study was to determine the influence of different bleaching sequences on the fibre surface properties of softwood kraft pulp before and after ageing. This was done by measuring the Dynamic Contact Angle（DCA） in water and by performing Electron Spectroscopy for Chemical Analysis （ESCA） on the pulp fibres. The study which was conducted on Elemental Chlorine Free（ECF） and Totally Chlorine Free（TCF） bleached softwood pulps, showed that there were measurable fibre surface differences between bleached pulps, depending on the bleaching method applied. The DCA was consistently higher for the TCF fibres. The change in the fibre properties after a storage period of six months,measured as DCA was more pronounced for the ECF fi- bres. A higher contact angle of the fibres after storage indicated either a migration of extractives and/or lignin from the fibre wall to the surface or a change in componenta on the fibre surface which caused it to become more hydrophobic,
出处
《黑龙江造纸》
2008年第1期5-8,共4页
Heilongjiang Pulp & Paper
基金
国家自然科学基金资助项目(30471365
20674046)
作者简介
赵芳（1982-），女，山东济南人，硕士生，主要从事植物纤维资源化学方面的研究。
