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, MarcMA
• 金额: $ 6.17万
• 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: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746724
• 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.

该提案旨在利用羧化纤维素纳米晶体（cnc）开发基于乳胶的压敏粘合剂产品，这是一种来自加拿大木浆的可持续纳米颗粒。具体来说，我们的目标是通过在聚合物合成过程中或合成后添加羧化碳纳米管作为乳胶中的增强剂。我们假设加入羧基化的cnc将改变乳胶的微观结构特性，并提高其整体性能。最终，我们将致力于用淀粉和/或其他植物来源的单体取代石化衍生单体，从而开发具有重要生物基含量的压敏粘合剂。Anomera Inc.是全球最大的羧化cnc生产商，也是唯一一家使用100%森林管理认证的加拿大森林和专利环保方法的生产商。虽然他们的cnc目前用于化妆品和复合材料应用，但他们希望扩大可由其材料生产的增值产品的范围。巴斯夫为工业规模的乳胶配方提供支持，而Rayonier AdvancedMaterials则代表最终用户在纸板粘合剂方面寻求帮助。cnc具有机械强度高、宽高比大、无毒、可生物降解等优点，具有广泛的应用前景；然而，含有cnc的商业产品的开发仍处于起步阶段，许多聚合物应用尚未探索。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，因此该研究可以很容易地转化为cnc开辟新的应用途径。dub<s:1>（环保聚合物反应工程）、Cunningham和Champagne（聚合物合成和接枝）以及Cranston （cnc的制备、修饰和表征）研究小组的专业知识之间的协同作用，将使许多加拿大工业受体的新型商业产品得以快速发展。这项研究将确保加拿大保持在cnc科学发现的前沿。