Enhancing Latex-based Coatings and Pressure Sensitive Adhesives with Carboxylated Cellulose Nanocrystals

用羧化纤维素纳米晶体增强乳胶基涂料和压敏粘合剂

• 批准号: 560215-2020
• 负责人: Dubé, Marc
• 金额: $ 5.1万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721741
• 关键词: Enhancing; Latex; based; Coatings; Pressure

This proposal seeks to develop latex-based pressure-sensitive adhesive products using carboxylated cellulosenanocrystals (CNCs) which are sustainable nanoparticles derived from wood pulp with a strong Canadianpresence. Specifically, we aim to use carboxylated CNCs as an enhancement agent in latexes by adding themeither during or post polymer synthesis. We hypothesize that incorporating carboxylated CNCs will modify themicrostructural properties of the latex and improve their overall performance. Ultimately, we will worktowards pressure-sensitive adhesives with significant bio-based content by replacing petrochemical-derivedmonomers with starch, and/or other monomers from plant sources. Anomera Inc. is the largest producer ofcarboxylated CNCs worldwide and the only producer that uses 100% Forest Stewardship certified Canadianforest and a patented eco-friendly method. While their CNCs are currently used in cosmetic and compositeapplications they would like to extend the range of value-added products that can be produced from theirmaterial. BASF is providing support with industrial-scale latex formulations, while Rayonier AdvancedMaterials represents an end-user seeking assistance with adhesives for paperboard applications. CNCs havemany potential applications due to their high mechanical strength, large aspect ratio, non-toxicity andbiodegradability; however, the development of commercial products containing CNCs is still in its infancy andmany polymer applications have yet to be explored. In addition to pressure-sensitive adhesives, latex polymers are also used in a broad range of applications including coatings, thin films, paints, and rubbers such that this research can easily be translated to open new application avenues for CNCs. The synergy between expertise in the Dubé (environmentally-benign polymer reaction engineering), Cunningham and Champagne (polymer synthesis and grafting), and Cranston (preparation, modification and characterization of CNCs) research groups will allow for rapid development of novel commercial products with many Canadian industrial receptors. This research will ensure that Canada remains at the forefront of scientific discoveries for CNCs.

该提案旨在开发使用羧化纤维素纳米晶体（CNC）的基于胶乳的压敏粘合剂产品，羧化纤维素纳米晶体（CNC）是源自木浆的可持续纳米颗粒，具有强的生物相容性。具体来说，我们的目标是使用羧基化的CNCs作为增强剂在胶乳中添加themeither在聚合物合成过程中或后。我们假设，将羧基化的CNCs掺入将改变胶乳的微观结构性质并改善其整体性能。最终，我们将通过用淀粉和/或其他植物来源的单体取代石油化工衍生的单体，致力于生产具有显著生物基含量的压敏粘合剂。Anomera Inc.是全球最大的羧化氯化萘生产商，也是唯一一家使用100%森林管理认证的绿色森林和获得专利的生态友好方法的生产商。虽然他们的氯化萘目前用于化妆品和复合材料的应用，他们希望扩大范围的增值产品，可以从他们的材料生产。巴斯夫正在提供工业规模的乳胶配方支持，而Rayonier AdvancedMaterials代表最终用户寻求纸板应用粘合剂的帮助。由于其高的机械强度、大的长径比、无毒性和可生物降解性，CNCs具有许多潜在的应用;然而，含有CNCs的商业产品的开发仍处于起步阶段，许多聚合物应用还有待探索。除了压敏粘合剂外，乳胶聚合物还用于广泛的应用，包括涂料、薄膜、油漆和橡胶，因此这项研究可以很容易地转化为CNC开辟新的应用途径。Dubé（环境友好型聚合物反应工程）、Cunningham和香槟（聚合物合成和接枝）以及克兰斯顿（CNCs的制备、改性和表征）研究小组的专业知识之间的协同作用将允许快速开发具有许多加拿大工业受体的新型商业产品。这项研究将确保加拿大继续处于CNCs科学发现的最前沿。