Development of a dewatering method for fibrillated fibers

Domtar Inc.是世界上最大的无涂层无纸板生产商之一，也是北美主要的纸级纸浆生产商之一。Domtar开发了一种特殊的纸浆并申请了专利，该纸浆具有高流体动力比表面积，纤维长度损失最小，细度生产较低。表面增强型纸浆纤维(SEPF)以前是在Innofibre中研究过的，并展示了在其他纸种中添加纸浆作为纸张增强的潜力。纸浆的脱水能力限制了其生产和商业化。经过脱水再制浆后，纸浆的性能会受到影响，纸浆的潜在利用率也会显著降低。本项目将能够在实验室范围内了解纸浆的脱水效果，包括机械脱水和热传递脱水。利用实验设计优化中试规模的脱水技术，然后将为Domtar提供所需的信息，以植入适合SEPF的最有益的脱水系统。因此，Domtar将能够进一步发展SEPF的使用和商业化，并保持加拿大、北美和世界纸浆制造商的领先地位。

Domtar Inc. is one of the largest producers of uncoated free sheet in the world and one of the main paper grade pulp producers in North America. Domtar has developed and patented a specific pulp with a high hydrodynamic specific surface area, with minimal loss in fiber length and lower fines production. The Surface Enhanced Pulp Fiber (SEPF) was previously studied in Innofibre and demonstrated the pulp potential as paper reinforcement when added in other paper grade. The pulp dewatering capacity limits its production and commercialization. After dewatering and re-pulping, the pulp properties are affected, and the potential use of pulp significantly decreased. This project will able to understand the dewatering effect on the pulp at laboratory scale dewatering involving mechanical water removing and dehydration by heat transfer. Optimization of pilot scale dewatering technologies using experimental designs will then give needed information to Domtar to implant the most beneficial dewatering system adapted to SEPF. Therefore, Domtar will be able to further develop the SEPF use and commercialization and to remain a pulp manufacturer leader in Canada, North America and in the world.