Optimal low consistency refining of northern softwood Kraft fibre

北方针叶牛皮纸纤维的优化低稠精炼

• 批准号: 412474-2011
• 负责人: Olson, James
• 金额: $ 6.17万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=491048
• 关键词: Optimal; low; consistency; refining; northern

Low consistency refining significantly improves the strength potential of northern softwood kraft pulp. During refining the fibres are impacted by repeated bar crossings and tthe fibre - bar interactions change the physical properties of the fibres in several ways. These morphologic changes result in increased fibre-fibre bond strength by increase the surface area of bond through fibrillation and lumen collapse. However, the complexity of these bar - fibre interaction and the resulting morphological changes are poorly understood and are known to be far from optimal. This proposed research program is aimed at ensuring that Northern SWK pulp users are extracting the optimal value after low consistency refining of this unique fibre. The specific objectives are: (1) To determine the optimal refining conditions for Northern Softwood Bleached Kraft (NSBK) pulp and pulp

低浓度打浆显著提高了北方针叶木硫酸盐浆的强度潜力。在精炼过程中，纤维会受到棒材反复交叉的影响，纤维与棒材的相互作用会以多种方式改变纤维的物理性质。这些形态变化通过原纤化和管腔塌陷增加粘结表面积，导致纤维-纤维粘结强度增加。然而，人们对这些棒状纤维相互作用的复杂性以及由此产生的形态变化知之甚少，并已知其远非最佳。这项拟议的研究计划旨在确保北方SWK纸浆用户在对这种独特的纤维进行低浓度精炼后提取最佳价值。具体目标是：(1)确定北方针叶木漂白硫酸盐(NSBK)浆和纸浆的最佳打浆条件