Investigating rheological property of cellulose filament suspension for industrial fluid application and process improvement

研究用于工业流体应用和工艺改进的纤维素长丝悬浮液的流变特性

• 批准号: 491608-2015
• 负责人: Olson, James
• 金额: $ 1.81万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586994
• 关键词: Investigating; rheological; property; cellulose; filament

Cellulose is the most abundant renewable biopolymer in the world and thus production of advanced value-added materials based on cellulose is of significant interest for growth of Canadian bio-based products. Cellulose filaments (CF) are a novel fibrillar material with a constant thickness and high aspect ratio, produced through mechanical refining of pulp fibers.. These cellulose filaments, due to their high mechanical strength, can be used as reinforcing agents in traditional pulp and paper applications, as well as in novel applications, such as for improving the mechanical properties of polymer composites. Additionally, CFs can be used as thickening/gelling agents in industrial fluids for applications in foods, paints, coatings and fracking fluids for oil and gas industry (Grüneberger et al. 2014). Successful commercialization of CF-based/reinforced products for all these applications can only be achieved by understanding and controlling the rheology of this material. In this work, a fundamental rheological study of CF suspensions will be conducted. Effects of different parameters, e.g. filament concentration, electrolyte addition, pH and temperature on the rheology of CFs and CF-supplemented materials will be investigated in order to achieve the desired rheological properties and processability for specific bio-products applications.

纤维素是世界上最丰富的可再生生物聚合物，因此生产先进的 以纤维素为基础的增值材料对加拿大生物基产品的增长具有重要意义。 纤维素长丝(CF)是一种新型的纤维材料，具有恒厚和高长径比的特点。 通过机械精炼纸浆纤维..这些纤维素丝，由于它们的机械强度很高， 可用作传统纸浆和纸张应用中的增强剂，以及在新的应用中， 如用于改善聚合物复合材料的力学性能。此外，CFS还可以用作 用于食品、涂料、涂料和水力压裂液的工业流体中的增稠剂/凝胶剂 石油和天然气行业(Grüneberger等人2014年)。碳纤维基/增强产品的成功商业化 因为所有这些应用只有通过了解和控制这种材料的流变性才能实现。 在这项工作中，将对碳纤维悬浮液进行基本的流变学研究。不同的影响 纤维浓度、电解液加入量、pH和温度等参数对CFS流变性的影响 将对添加了CF的材料进行研究，以获得所需的流变性和 适用于特定生物制品应用的加工性。