Phosphorylation of lignocellulosic fibers to produce a fire retardant paper grade

木质纤维素纤维的磷酸化生产阻燃纸级

• 批准号: 536455-2018
• 负责人: Parenteau, Mario
• 金额: $ 5.46万
• 依托单位: Cégep de Trois-Rivières
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=699196
• 关键词: Phosphorylation; lignocellulosic; fibers; produce; fire

Kruger is one of the largest Canadian company in wood transformation, papermaking, biomaterials and renewable energy with more than 110 years of history, 5000 employees and 19 manufacturing sites in North America. Nowadays, the newsprint paper, a predilection product of Canadian paper market, is in a free fall and jeopardises the existence of secular papermakers. Big companies like Kruger have no other option but to innovate in order to maintain and expand their economic activity. Recently, Innofibre, a college centre for the transfer of technology from Trois-Rivières College and CRML, a university research centre in lignocellulosic materials from Quebec University at Trois-Rivières, have developed a new pathway for the phosphorylation reaction of lignocellulosic fibers. The product, called phosphorylated fibers, has outstanding properties including fire retardant, ion exchange and water absorption capacity. However, the reaction has a significant drawback. The grafted phosphate moiety generates high repulsion charge at the surface, impairing the fibers capacity to bond each other and therefore to form a strength paper sheet. The purpose of this project will be to develop a fire retardant papermaking recipe from the phosphorylated lignocellulosic fibers without significant loose of paper strength. The influence of reaction parameters like fiber furnish, phosphorylation reagent, initial concentration, temperature, time, counter-ion species on the fire retardant efficiency and paper strength will be evaluated and quantified. At the end of the project, Innofibre will provide to Kruger a scalable best available technological solution to produce a fire retardant paper grade from phosphorylated lignocellulosic fibers.

克鲁格是加拿大最大的木材加工、造纸、生物材料和可再生能源公司之一，拥有110多年的历史，在北美拥有5000名员工和19个生产基地。新闻纸是加拿大纸张市场的主要产品，但其价格却呈直线下降趋势，严重威胁着传统造纸企业的生存。像克鲁格这样的大公司别无选择，只能创新，以维持和扩大其经济活动。最近，三河学院的技术转让大学中心Innofibre和三河魁北克大学的木质纤维素材料大学研究中心CRML开发了一种新的木质纤维素纤维磷酸化反应途径。该产品被称为磷酸化纤维，具有优异的性能，包括阻燃，离子交换和吸水能力。然而，该反应具有显著的缺点。接枝的磷酸酯部分在表面产生高排斥电荷，削弱纤维彼此结合的能力，从而形成强度纸页。本项目的目的是从磷酸化木质纤维素纤维中开发一种阻燃造纸配方，而不会显着降低纸张强度。研究了纤维配料、磷酸化试剂、初始浓度、温度、时间、反离子种类等反应参数对阻燃效率和纸张强度的影响。在项目结束时，Innofibre将为Kruger提供可扩展的最佳技术解决方案，以从磷酸化木质纤维素纤维生产阻燃纸。